A3	A00	Anderssen's Opening	Romford counter-gambit
A4 E5 H4	A00	Crab Opening	Romford counter-gambit
A4	A00	Ware (Meadow Hay) Opening	Romford counter-gambit
B3 B5	A01	Nimzovich-Larsen attack	Polish Variation
B3 B6	A01	Nimzovich-Larsen attack	Symmetrical Variation
B3 C5	A01	Nimzovich-Larsen attack	English Variation
B3 D5	A01	Nimzovich-Larsen attack	Classical Variation
B3 E5	A01	Nimzovich-Larsen attack	Modern Variation
B3 F5	A01	Nimzovich-Larsen attack	Dutch Variation
B3 NF6	A01	Nimzovich-Larsen attack	Indian Variation
B3	A01	Nimzovich-Larsen attack	Romford counter-gambit
B4 C6	A00	Polish	Outflank Variation
B4 NH6	A00	Polish	Tuebingen Variation
B4	A00	Polish (Sokolsky) opening	
C3	A00	Saragossa Opening	Romford counter-gambit
C4 B5	A10	English	Jaenisch gambit
C4 C5 NC3 NC6 G3 G6 BG2 BG7 E3 E5	A36	English	Symmetrical, Botvinnik system Reversed
C4 C5 NC3 NC6 G3 G6 BG2 BG7 E4	A36	English	Symmetrical, Botvinnik system
C4 C5 NC3 NC6 G3 G6 BG2 BG7 NF3 E5	A37	English	Symmetrical, Botvinnik system Reversed
C4 C5 NC3 NC6 G3 G6 BG2 BG7 NF3 NF6 O-O O-O B3	A38	English	Symmetrical, Main line with b3
C4 C5 NC3 NC6 G3 G6 BG2 BG7 NF3 NF6 O-O O-O D3	A38	English	Symmetrical, Main line with d3
C4 C5 NC3 NC6 G3 G6 BG2 BG7 NF3 NF6 O-O O-O D4	A39	English	Symmetrical, Main line with d4
C4 C5 NC3 NC6 G3 G6 BG2 BG7 NF3 NF6	A38	English	Symmetrical Variation
C4 C5 NC3 NC6 G3 G6 BG2 BG7 NF3	A37	English	Symmetrical Variation
C4 C5 NC3 NC6 G3 G6 BG2 BG7	A36	English	ultra-Symmetrical Variation
C4 C5 NC3 NC6 G3	A36	English	Symmetrical Variation
C4 C5 NC3 NC6 NF3 NF6	A35	English	Symmetrical, Four knights system
C4 C5 NC3 NC6	A35	English	Symmetrical Variation
C4 C5 NC3 NF6 G3 D5 CXD5 NXD5 BG2 NC7	A34	English	Symmetrical, Rubinstein system
C4 C5 NC3 NF6 G3	A34	English	Symmetrical Variation
C4 C5 NC3 NF6 NF3 D5 CXD5 NXD5	A34	English	Symmetrical, Three knights system
C4 C5 NC3	A34	English	Symmetrical Variation
C4 C5 NF3 NF6 D4 CXD4 NXD4 E6 NC3 NC6 G3 QB6	A33	English	Symmetrical, Geller Variation
C4 C5 NF3 NF6 D4 CXD4 NXD4 E6 NC3 NC6	A33	English	Symmetrical Variation
C4 C5 NF3 NF6 D4 CXD4 NXD4 E6	A32	English	Symmetrical Variation
C4 C5 NF3 NF6 D4	A31	English	Symmetrical, Benoni formation
C4 C5 NF3 NF6 G3 B6 BG2 BB7 O-O E6 NC3 BE7 D4 CXD4 QXD4 D6 RD1 A6 B3 NBD7	A30	English	Symmetrical, hedgehog, flexible formation
C4 C5 NF3 NF6 G3 B6 BG2 BB7 O-O E6 NC3 BE7	A30	English	Symmetrical, hedgehog system
C4 C5	A30	English	Symmetrical Variation
C4 C6 NF3 D5 B3 BG4	A12	English	Caro-Kann defensive system, Bogolyubov Variation
C4 C6 NF3 D5 B3 NF6 BB2 BF5	A12	English	New York (London) defensive system
C4 C6 NF3 D5 B3 NF6 BB2 BG4	A12	English	Capablanca's Variation
C4 C6 NF3 D5 B3 NF6 BB2 G6	A12	English	Bled Variation
C4 C6 NF3 D5 B3 NF6 BB2	A12	English	Caro-Kann defensive system
C4 C6 NF3 D5 B3 NF6 G3 BF5	A12	English	London defensive system
C4 C6 NF3 D5 B3 NF6 G3 BG4	A12	English	Torre defensive system
C4 C6 NF3 D5 B3	A12	English	Caro-Kann defensive system
C4 C6	A11	English	Caro-Kann defensive system
C4 E5 NC3 BB4	A21	English, Kramnik-Shirov counterattack	Mikenas-Carls, Sicilian Variation
C4 E5 NC3 D6 G3 BE6 BG2 NC6	A21	English, Troeger defense	Mikenas-Carls, Sicilian Variation
C4 E5 NC3 D6 G3 C6	A21	English, Keres Variation 	Mikenas-Carls, Sicilian Variation
C4 E5 NC3 D6 NF3 BG4	A21	English, Smyslov defense	Mikenas-Carls, Sicilian Variation
C4 E5 NC3 D6 NF3	A21	English Opening	Mikenas-Carls, Sicilian Variation
C4 E5 NC3 NC6 G3 G6 BG2 BG7 D3 D6 E4	A26	English	Botvinnik system
C4 E5 NC3 NC6 G3 G6 BG2 BG7 D3 D6	A26	English	Closed system
C4 E5 NC3 NC6 G3 G6 BG2 BG7 D3	A25	English	Closed system (without ...d6)
C4 E5 NC3 NC6 G3 G6 BG2 BG7 E3 D6 NGE2 BE6	A25	English	Closed, Hort Variation
C4 E5 NC3 NC6 G3 G6 BG2 BG7 E3 D6 NGE2 NH6	A25	English	Closed, Taimanov Variation
C4 E5 NC3 NC6 G3 G6 BG2 BG7 RB1 NH6	A25	English	Closed, 5.Rb1 Taimanov Variation
C4 E5 NC3 NC6 G3 G6 BG2 BG7 RB1	A25	English	Closed, 5.Rb1
C4 E5 NC3 NC6 G3 G6 BG2 BG7	A25	English	Closed system
C4 E5 NC3 NC6 NF3 NF6 A3	A28	English	Four knights, Marini Variation
C4 E5 NC3 NC6 NF3 NF6 D3	A28	English	Four knights, Capablanca Variation
C4 E5 NC3 NC6 NF3 NF6 D4 E4	A28	English	Bradley Beach Variation
C4 E5 NC3 NC6 NF3 NF6 D4 EXD4 NXD4 BB4 BG5 H6 BH4 BXC3+ BXC3 NE5	A28	English	Nenarokov Variation
C4 E5 NC3 NC6 NF3 NF6 E3 BB4 QC2 BXC3	A28	English	Four knights, Romanishin Variation
C4 E5 NC3 NC6 NF3 NF6 E3 BB4 QC2 O-O ND5 RE8 QF5	A28	English	Four knights, Stean Variation
C4 E5 NC3 NC6 NF3 NF6 E3	A28	English	Four knights, 4.e3
C4 E5 NC3 NC6 NF3 NF6 E4	A28	English	Four knights, Nimzovich Variation
C4 E5 NC3 NC6 NF3 NF6 G3	A29	English	Four knights, kingside Fianchetto
C4 E5 NC3 NC6 NF3 NF6	A28	English	Four knights system
C4 E5 NC3 NC6 NF3	A27	English	Three knights system
C4 E5 NC3 NC6	A25	English	Sicilian Reversed
C4 E5 NC3 NF6 G3 BB4	A22	English	Bremen, Smyslov system
C4 E5 NC3 NF6 G3 C6	A23	English	Bremen system, Keres Variation
C4 E5 NC3 NF6 G3 D5	A22	English	Bremen, reverse Dragon
C4 E5 NC3 NF6 G3 G6	A24	English	Bremen system with ...g6
C4 E5 NC3 NF6 G3	A22	English	Carls' Bremen system
C4 E5 NC3 NF6 NF3 E4 NG5 B5	A22	English	Bellon gambit
C4 E5 NC3 NF6	A22	English Opening	Mikenas-Carls, Sicilian Variation
C4 E5 NC3	A21	English Opening	Mikenas-Carls, Sicilian Variation
C4 E5 NF3 E4	A20	English, Nimzovich, Flohr Variation 	Mikenas-Carls, Sicilian Variation
C4 E5 NF3	A20	English, Nimzovich Variation 	Mikenas-Carls, Sicilian Variation
C4 E5	A20	English Opening	Mikenas-Carls, Sicilian Variation
C4 E6 NF3 D5 B3 NF6 BB2 C5 E3	A13	English	Wimpey system
C4 E6 NF3 D5 G3 C6	A13	English	Kurajica defense
C4 E6 NF3 D5 G3 NF6 BG2 BE7 O-O C5 CXD5 NXD5 NC3 NC6	A14	English	Symmetrical, Keres defense
C4 E6 NF3 D5 G3 NF6 BG2 BE7 O-O	A14	English	Neo-Catalan declined
C4 E6 NF3 D5 G3 NF6 BG2 DXC4	A13	English	Neo-Catalan accepted
C4 E6 NF3 D5 G3 NF6	A13	English	Neo-Catalan
C4 E6 NF3 D5 G3	A13	English Opening	Agincourt Variation
C4 E6 NF3 D5	A13	English Opening	Agincourt Variation
C4 E6 NF3 NF6 G3 A6 BG2 B5	A13	English	Romanishin gambit
C4 E6	A13	English Opening	Caro-Kann defensive system, Bogolyubov Variation
C4 F5	A10	English	Anglo-Dutch defense
C4 G6 E4 E5	A10	English	Adorjan defense
C4 G6	A10	English Opening	Keres Variation
C4 NF6 B4	A15	English orang-utan	Symmetrical, Keres defense
C4 NF6 NC3 D5 CXD5 NXD5 G3 G6 BG2 NB6	A16	English	Anglo-Gruenfeld, Czech defense
C4 NF6 NC3 D5 CXD5 NXD5 G3 G6 BG2 NXC3	A16	English	Anglo-Gruenfeld, Smyslov defense
C4 NF6 NC3 D5 CXD5 NXD5 NF3 G6 G3 BG7 BG2 E5	A16	English	Anglo-Gruenfeld defense, Korchnoi Variation
C4 NF6 NC3 D5 CXD5 NXD5 NF3	A16	English	Anglo-Gruenfeld defense
C4 NF6 NC3 D5	A16	English	Anglo-Gruenfeld defense
C4 NF6 NC3 E6 E4 C5	A19	English	Mikenas-Carls, Sicilian Variation
C4 NF6 NC3 E6 E4 D5 E5	A18	English	Mikenas-Carls, Flohr Variation
C4 NF6 NC3 E6 E4 NC6	A18	English	Mikenas-Carls, Kevitz Variation
C4 NF6 NC3 E6 E4	A18	English	Mikenas-Carls Variation
C4 NF6 NC3 E6 NF3 B6 E4 BB7 BD3	A17	English	Queens Indian, Romanishin Variation
C4 NF6 NC3 E6 NF3 B6	A17	English	Queens Indian formation
C4 NF6 NC3 E6 NF3 BB4	A17	English	Nimzo-English Opening
C4 NF6 NC3 E6	A17	English Opening	Anglo-Gruenfeld defense, Korchnoi Variation
C4 NF6 NC3	A16	English Opening	Symmetrical, Keres defense
C4 NF6 NF3	A15	English Opening	Symmetrical, Keres defense
C4 NF6	A15	English, 1...Nf6 (Anglo-Indian defense)	Symmetrical, Keres defense
C4	A10	English Opening	Keres Variation
D3 C5 NC3 NC6 G3	A00	Venezolana Opening	Romford counter-gambit
D3 E5 ND2	A00	Valencia Opening	Romford counter-gambit
D3 E5	A00	Mieses Opening	Romford counter-gambit
D3	A00	Mieses Opening	Romford counter-gambit
D4 B5	A40	Polish defense	English defense
D4 B6	A40	Queen's pawn	English defense
D4 C5 D5 D6 NC3 G6	A43	Old Benoni	Schmid's system
D4 C5 D5 D6	A43	Old Benoni defense	Mujannah formation
D4 C5 D5 E5 E4 D6	A44	Semi-Benoni (`blockade Variation ')	Schmid's system
D4 C5 D5 E5	A44	Old Benoni defense	Schmid's system
D4 C5 D5 E6 E4	A43	Old Benoni	Franco-Benoni defense
D4 C5 D5 F5	A43	Old Benoni	Mujannah formation
D4 C5 D5 NF6 NC3 QA5	A43	Woozle defense	Mujannah formation
D4 C5 D5 NF6 NF3 C4	A43	Hawk (Habichd) defense	Mujannah formation
D4 C5 D5 NF6 NF3	A43	Old Benoni defense	Mujannah formation
D4 C5 D5 NF6	A43	Old Benoni defense	Mujannah formation
D4 C5	A43	Old Benoni defense	Averbakh system, Kotov Variation
D4 D5 BF4 C5	D00	Queen's pawn, Mason Variation , Steinitz counter-gambit	Closed, Chigorin, 12...c5d4
D4 D5 BF4	D00	Queen's pawn, Mason Variation 	Closed, Chigorin, 12...c5d4
D4 D5 BG5	D00	Levitsky attack (Queen's Bishop attack)	Closed, Chigorin, 12...c5d4
D4 D5 C4 BF5	D06	QGD	Grau (Sahovic) defense
D4 D5 C4 C5	D06	QGD	Symmetrical (Austrian) defense
D4 D5 C4 C6 CXD5	D10	QGD Slav defense	Exchange Variation
D4 D5 C4 C6 NC3 DXC4 E4	D10	QGD Slav defense, Alekhine Variation 	Albin counter-gambit, 5.g3
D4 D5 C4 C6 NC3 E5	D10	QGD Slav	Winawer counter-gambit
D4 D5 C4 C6 NF3 NF6 CXD5 CXD5 NC3 NC6 BF4 BF5 E3 E6 QB3 BB4	D14	QGD Slav	Exchange, Trifunovic Variation
D4 D5 C4 C6 NF3 NF6 CXD5 CXD5 NC3 NC6 BF4 BF5	D14	QGD Slav	Exchange Variation , 6.Bf4 Bf5
D4 D5 C4 C6 NF3 NF6 CXD5 CXD5	D13	QGD Slav	Exchange Variation
D4 D5 C4 C6 NF3 NF6 E3 BF5 CXD5 CXD5 NC3 E6 NE5 NFD7	D12	QGD Slav	Amsterdam Variation
D4 D5 C4 C6 NF3 NF6 E3 BF5 CXD5 CXD5 NC3	D12	QGD Slav	Exchange Variation
D4 D5 C4 C6 NF3 NF6 E3 BF5 CXD5 CXD5 QB3 QC8 BD2 E6 NA3	D12	QGD Slav	Landau Variation
D4 D5 C4 C6 NF3 NF6 E3 BF5	D12	QGD Slav	4.e3 Bf5
D4 D5 C4 C6 NF3 NF6 E3	D11	QGD Slav	4.e3
D4 D5 C4 C6 NF3 NF6 NBD2	D11	QGD Slav	Breyer Variation
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 A4 BF5 E3 E6 BXC4 BB4 O-O O-O QE2 NE4 G4	D19	QGD Slav	Dutch, Saemisch Variation
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 A4 BF5 E3 E6 BXC4 BB4 O-O O-O QE2	D19	QGD Slav	Dutch Variation , Main line
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 A4 BF5 E3 E6 BXC4 BB4 O-O	D19	QGD Slav	Dutch Variation
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 A4 BF5 E3 NA6	D18	QGD Slav	Dutch, Lasker Variation
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 A4 BF5 E3	D18	QGD Slav	Dutch Variation
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 A4 BF5 NE5 E6	D17	QGD Slav	Wiesbaden Variation
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 A4 BF5 NE5 NBD7 NXC4 QC7 G3 E5	D17	QGD Slav	Carlsbad Variation
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 A4 BF5 NE5	D17	QGD Slav	Krause attack
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 A4 BF5	D17	QGD Slav	Czech defense
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 A4 BG4	D16	QGD Slav	Steiner Variation
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 A4 E6	D16	QGD Slav	Soultanbeieff Variation
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 A4 NA6 E4 BG4	D16	QGD Slav	Smyslov Variation
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 A4	D16	QGD Slav accepted	Alapin Variation
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 E3	D15	QGD Slav	5.e3 (Alekhine Variation )
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 E4 B5 E5	D15	QGD Slav	Tolush-Geller gambit
D4 D5 C4 C6 NF3 NF6 NC3 DXC4 E4	D15	QGD Slav	Slav gambit
D4 D5 C4 C6 NF3 NF6 NC3 DXC4	D15	QGD Slav accepted	Schlechter Variation
D4 D5 C4 C6 NF3 NF6 NC3 G6	D15	QGD Slav	Schlechter Variation
D4 D5 C4 C6 NF3 NF6 NC3 QB6	D15	QGD Slav	Suechting Variation
D4 D5 C4 C6 NF3 NF6 NC3	D15	QGD Slav	4.Nc3
D4 D5 C4 C6 NF3	D11	QGD Slav	3.Nf3
D4 D5 C4 C6	D10	QGD Slav defense	Albin counter-gambit, 5.g3
D4 D5 C4 DXC4 E4 C5 D5 NF6 NC3 B5	D20	Queen's gambit accepted	Linares Variation
D4 D5 C4 DXC4 E4 F5	D20	Queen's gambit accepted	Schwartz defense
D4 D5 C4 DXC4 E4	D20	Queen's gambit accepted	3.e4
D4 D5 C4 DXC4 NF3 A6 E3 B5	D22	Queen's gambit accepted	Haberditz Variation
D4 D5 C4 DXC4 NF3 A6 E3 BG4 BXC4 E6 D5	D22	Queen's gambit accepted	Alekhine defense, Alatortsev Variation
D4 D5 C4 DXC4 NF3 A6 E4	D21	Queen's gambit accepted	Alekhine defense, Borisenko-Furman Variation
D4 D5 C4 DXC4 NF3 A6	D22	Queen's gambit accepted	Alekhine defense
D4 D5 C4 DXC4 NF3 B5	D21	Queen's gambit accepted	Ericson Variation
D4 D5 C4 DXC4 NF3 NF6 E3 BE6	D25	Queen's gambit accepted, Flohr Variation 	Mannheim Variation
D4 D5 C4 DXC4 NF3 NF6 E3 BG4	D25	Queen's gambit accepted, Janowsky-Larsen Variation 	Mannheim Variation
D4 D5 C4 DXC4 NF3 NF6 E3 E6 BXC4 C5 O-O A6 A4	D27	Queen's gambit accepted	Classical, Rubinstein Variation
D4 D5 C4 DXC4 NF3 NF6 E3 E6 BXC4 C5 O-O A6 E4	D27	Queen's gambit accepted	Classical, Geller Variation
D4 D5 C4 DXC4 NF3 NF6 E3 E6 BXC4 C5 O-O A6 QE2 B5 BB3 BB7 RD1 NBD7 NC3 BD6	D29	Queen's gambit accepted	Classical, Smyslov Variation
D4 D5 C4 DXC4 NF3 NF6 E3 E6 BXC4 C5 O-O A6 QE2 B5 BB3 BB7	D29	Queen's gambit accepted	Classical, 8...Bb7
D4 D5 C4 DXC4 NF3 NF6 E3 E6 BXC4 C5 O-O A6 QE2 B5 BB3 NC6 RD1 C4 BC2 NB4 NC3 NXC2 QXC2 BB7 D5 QC7	D28	Queen's gambit accepted	Classical, Flohr Variation
D4 D5 C4 DXC4 NF3 NF6 E3 E6 BXC4 C5 O-O A6 QE2 B5	D28	Queen's gambit accepted	Classical, 7...b5
D4 D5 C4 DXC4 NF3 NF6 E3 E6 BXC4 C5 O-O A6 QE2	D28	Queen's gambit accepted	Classical, 7.Qe2
D4 D5 C4 DXC4 NF3 NF6 E3 E6 BXC4 C5 O-O A6	D27	Queen's gambit accepted	Classical, 6...a6
D4 D5 C4 DXC4 NF3 NF6 E3 E6 BXC4 C5 O-O CXD4	D26	Queen's gambit accepted	Classical, Steinitz Variation
D4 D5 C4 DXC4 NF3 NF6 E3 E6 BXC4 C5 O-O	D26	Queen's gambit accepted	Classical Variation , 6.O-O
D4 D5 C4 DXC4 NF3 NF6 E3 E6 BXC4 C5 QE2 A6 DXC5 BXC5 O-O NC6 E4 B5 E5	D26	Queen's gambit accepted	Classical, Furman Variation
D4 D5 C4 DXC4 NF3 NF6 E3 E6 BXC4 C5	D26	Queen's gambit accepted	Classical Variation
D4 D5 C4 DXC4 NF3 NF6 E3 E6	D26	Queen's gambit accepted	4...e6
D4 D5 C4 DXC4 NF3 NF6 E3 G6	D25	Queen's gambit accepted, Smyslov Variation 	Mannheim Variation
D4 D5 C4 DXC4 NF3 NF6 E3	D25	Queen's gambit accepted, 4.e3	Mannheim Variation
D4 D5 C4 DXC4 NF3 NF6 NC3 A6 E4	D24	Queen's gambit accepted, Bogolyubov Variation 	Mannheim Variation
D4 D5 C4 DXC4 NF3 NF6 NC3	D24	Queen's gambit accepted, 4.Nc3	Mannheim Variation
D4 D5 C4 DXC4 NF3 NF6 QA4	D23	Queen's gambit accepted	Mannheim Variation
D4 D5 C4 DXC4 NF3 NF6	D23	Queen's gambit accepted	Haberditz Variation
D4 D5 C4 DXC4 NF3	D21	Queen's gambit accepted	3.Nf3
D4 D5 C4 DXC4	D20	Queen's gambit accepted	Dutch, Saemisch Variation
D4 D5 C4 E5 DXE5 D4 E3 BB4+ BD2 DXE3	D08	QGD	Albin counter-gambit, Lasker trap
D4 D5 C4 E5 DXE5 D4 NF3 NC6 G3	D09	QGD	Albin counter-gambit, 5.g3
D4 D5 C4 E5 DXE5 D4 NF3 NC6 NBD2 BG4 H3 BXF3 NXF3 BB4+ BD2 QE7	D08	QGD	Albin counter-gambit, Krenosz Variation
D4 D5 C4 E5 DXE5 D4 NF3 NC6 NBD2 F6	D08	QGD	Albin counter-gambit, Janowski Variation
D4 D5 C4 E5 DXE5 D4 NF3 NC6 NBD2 QE7	D08	QGD	Albin counter-gambit, Balogh Variation
D4 D5 C4 E5 DXE5 D4 NF3 NC6 NBD2	D08	QGD	Albin counter-gambit, Alapin Variation
D4 D5 C4 E5 DXE5 D4 NF3	D08	QGD	Albin counter-gambit
D4 D5 C4 E5	D08	QGD	Albin counter-gambit
D4 D5 C4 E6 NC3 A6	D31	QGD	Janowski Variation
D4 D5 C4 E6 NC3 B6	D31	QGD	Alapin Variation
D4 D5 C4 E6 NC3 BE7	D31	QGD	Charousek (Petrosian) Variation
D4 D5 C4 E6 NC3 C5 CXD5 CXD4	D32	QGD	Tarrasch, von Hennig-Schara gambit
D4 D5 C4 E6 NC3 C5 CXD5 EXD5 DXC5 D4 NA4 B5	D32	QGD	Tarrasch defense, Tarrasch gambit
D4 D5 C4 E6 NC3 C5 CXD5 EXD5 E4	D32	QGD	Tarrasch defense, Marshall gambit
D4 D5 C4 E6 NC3 C5 CXD5 EXD5 NF3 NC6 G3 C4 E4	D33	QGD	Tarrasch, Schlechter-Rubinstein system, Rey Ardid Variation
D4 D5 C4 E6 NC3 C5 CXD5 EXD5 NF3 NC6 G3 C4	D33	QGD	Tarrasch, Folkestone (Swedish) Variation
D4 D5 C4 E6 NC3 C5 CXD5 EXD5 NF3 NC6 G3 NF6 BG2 BE7 O-O O-O BG5 BE6 RC1 C4	D34	QGD	Tarrasch, Bogolyubov Variation
D4 D5 C4 E6 NC3 C5 CXD5 EXD5 NF3 NC6 G3 NF6 BG2 BE7 O-O O-O BG5 BE6 RC1 B6	D34	QGD	Tarrasch, Stoltz Variation
D4 D5 C4 E6 NC3 C5 CXD5 EXD5 NF3 NC6 G3 NF6 BG2 BE7 O-O O-O BG5	D34	QGD	Tarrasch, Prague Variation , 9.Bg5
D4 D5 C4 E6 NC3 C5 CXD5 EXD5 NF3 NC6 G3 NF6 BG2 BE7 O-O O-O DXC5 BXC5 NA4	D34	QGD	Tarrasch, Reti Variation
D4 D5 C4 E6 NC3 C5 CXD5 EXD5 NF3 NC6 G3 NF6 BG2 BE7 O-O O-O	D34	QGD	Tarrasch, Prague Variation , Normal position
D4 D5 C4 E6 NC3 C5 CXD5 EXD5 NF3 NC6 G3 NF6 BG2 BE7	D34	QGD	Tarrasch, Prague Variation , 7...Be7
D4 D5 C4 E6 NC3 C5 CXD5 EXD5 NF3 NC6 G3 NF6 BG2 BG4	D33	QGD	Tarrasch, Wagner Variation
D4 D5 C4 E6 NC3 C5 CXD5 EXD5 NF3 NC6 G3 NF6	D33	QGD	Tarrasch, Prague Variation
D4 D5 C4 E6 NC3 C5 CXD5 EXD5 NF3 NC6 G3	D33	QGD	Tarrasch, Schlechter-Rubinstein system
D4 D5 C4 E6 NC3 C5 CXD5 EXD5 NF3	D32	QGD	Tarrasch defense
D4 D5 C4 E6 NC3 C5 CXD5 EXD5	D32	QGD	Tarrasch defense, 4.cd ed
D4 D5 C4 E6 NC3 C5	D32	QGD	Tarrasch defense
D4 D5 C4 E6 NC3 C6 E4	D31	QGD	Semi-Slav, Marshall gambit
D4 D5 C4 E6 NC3 C6 NF3 DXC4 A4 BB4 E3 B5 BD2 A5	D31	QGD	Semi-Slav, Abrahams Variation
D4 D5 C4 E6 NC3 C6 NF3 DXC4 A4 BB4 E3 B5 BD2 QB6	D31	QGD	Semi-Slav, Junge Variation
D4 D5 C4 E6 NC3 C6 NF3 DXC4 A4 BB4 E3 B5 BD2 QE7	D31	QGD	Semi-Slav, Koomen Variation
D4 D5 C4 E6 NC3 C6 NF3 DXC4	D31	QGD	Semi-Slav, Noteboom Variation
D4 D5 C4 E6 NC3 C6	D31	QGD	Semi-Slav
D4 D5 C4 E6 NC3 NF6 BF4	D35	QGD	Harrwitz attack
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 NE4	D53	QGD	Lasker Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 B6 BD3 BB7 CXD5 EXD5 NE5	D55	QGD	Pillsbury attack
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 H6 BH4 B6 CXD5 NXD5 BXE7 QXE7 NXD5 EXD5 RC1 BE6	D59	QGD	Tartakower Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 H6 BH4 B6 CXD5 NXD5	D59	QGD	Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd5
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 H6 BH4 B6	D58	QGD	Tartakower (Makagonov-Bondarevsky) system
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 H6 BH4 NE4 BXE7 QXE7 CXD5 NXC3 BXC3	D57	QGD	Lasker defense, Main line
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 H6 BH4 NE4 BXE7 QXE7 CXD5 NXC3 BXC3 EXD5 QB3 QD6	D57	QGD	Lasker defense, Bernstein Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 H6 BH4 NE4 BXE7 QXE7 QC2 NF6 BD3 DXC4 BXC4 C5 O-O NC6 RFD1 BD7	D56	QGD	Lasker defense, Russian Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 H6 BH4 NE4 BXE7 QXE7 QC2	D56	QGD	Lasker defense, Teichmann Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 H6 BH4 NE4	D56	QGD	Lasker defense
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 H6 BH4	D55	QGD	Neo-Orthodox Variation , 7.Bh4
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 H6 BXF6 BXF6 RC1 C6 BD3 ND7 O-O DXC4 BXC4	D55	QGD	Petrosian Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 H6 BXF6	D55	QGD	Neo-Orthodox Variation , 7.Bxf6
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 H6	D55	QGD	Neo-Orthodox Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 BD3	D60	QGD	Orthodox defense, Botvinnik Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 QB3	D60	QGD	Orthodox defense, Rauzer Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 QC2 C5 CXD5	D62	QGD	Orthodox defense, 7.Qc2 c5, 8.cd (Rubinstein)
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 QC2	D61	QGD	Orthodox defense, Rubinstein Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 A6 CXD5	D63	QGD	Orthodox defense, Swiss, Karlsbad Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 A6	D63	QGD	Orthodox defense, Swiss (Henneberger) Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 B6 CXD5 EXD5 BB5	D63	QGD	Orthodox defense, Capablanca Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 B6 CXD5 EXD5 BD3	D63	QGD	Orthodox defense, Pillsbury attack
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 BD3 DXC4 BXC4 B5	D66	QGD	Orthodox defense, Bd3 line, Fianchetto Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 BD3 DXC4 BXC4 ND5	D67	QGD	Orthodox defense, Bd3 line, Capablanca freeing manoevre
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 BD3 DXC4 BXC4 ND5 H4	D67	QGD	Orthodox defense, Bd3 line, Janowski Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 BD3 DXC4 BXC4 ND5 BXE7 QXE7	D67	QGD	Orthodox defense, Bd3 line
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 BD3 DXC4 BXC4 ND5 BXE7 QXE7 NE4	D67	QGD	Orthodox defense, Bd3 line, Alekhine Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 BD3 DXC4 BXC4 ND5 BXE7 QXE7 O-O	D67	QGD	Orthodox defense, Bd3 line, 11.O-O
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 BD3 DXC4 BXC4 ND5 BXE7 QXE7 O-O NXC3 RXC3 E5	D68	QGD	Orthodox defense, Classical Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 BD3 DXC4 BXC4 ND5 BXE7 QXE7 O-O NXC3 RXC3 E5 QB1	D68	QGD	Orthodox defense, Classical, 13.d1b1 (Maroczy)
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 BD3 DXC4 BXC4 ND5 BXE7 QXE7 O-O NXC3 RXC3 E5 QC2	D68	QGD	Orthodox defense, Classical, 13.d1c2 (Vidmar)
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 BD3 DXC4 BXC4 ND5 BXE7 QXE7 O-O NXC3 RXC3 E5 DXE5 NXE5 NXE5 QXE5	D69	QGD	Orthodox defense, Classical, 13.de
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 BD3	D66	QGD	Orthodox defense, Bd3 line
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 QC2 A6 A3	D64	QGD	Orthodox defense, Rubinstein attack, Gruenfeld Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 QC2 A6 CXD5	D65	QGD	Orthodox defense, Rubinstein attack, Main line
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 QC2 A6	D64	QGD	Orthodox defense, Rubinstein attack, Karlsbad Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 QC2 NE4	D64	QGD	Orthodox defense, Rubinstein attack, Wolf Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6 QC2	D64	QGD	Orthodox defense, Rubinstein attack (with Rc1)
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1 C6	D63	QGD	Orthodox defense
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7 RC1	D63	QGD	Orthodox defense, 7.Rc1
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3 NBD7	D60	QGD	Orthodox defense
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O NF3	D55	QGD	6.Nf3
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O RC1	D54	QGD	Anti-neo-Orthodox Variation
D4 D5 C4 E6 NC3 NF6 BG5 BE7 E3 O-O	D53	QGD	4.Bg5 Be7, 5.e3 O-O
D4 D5 C4 E6 NC3 NF6 BG5 BE7	D53	QGD	4.Bg5 Be7
D4 D5 C4 E6 NC3 NF6 BG5 C5 CXD5 QB6	D50	QGD	Canal (Venice) Variation
D4 D5 C4 E6 NC3 NF6 BG5 C5 CXD5	D50	QGD	Semi-Tarrasch
D4 D5 C4 E6 NC3 NF6 BG5 C5 NF3 CXD4 NXD4 E5 NDB5 A6 QA4	D50	QGD	Semi-Tarrasch, Krause Variation
D4 D5 C4 E6 NC3 NF6 BG5 C5 NF3 CXD4 QXD4	D50	QGD	Semi-Tarrasch, Primitive Pillsbury Variation
D4 D5 C4 E6 NC3 NF6 BG5 C5	D50	QGD	Been-Koomen Variation
D4 D5 C4 E6 NC3 NF6 BG5 NBD7 E3 BB4	D51	QGD	Manhattan Variation
D4 D5 C4 E6 NC3 NF6 BG5 NBD7 E3 C6 A3	D51	QGD	Capablanca anti-Cambridge Springs Variation
D4 D5 C4 E6 NC3 NF6 BG5 NBD7 E3 C6 NF3 QA5 BXF6	D52	QGD	Cambridge Springs defense, Capablanca Variation
D4 D5 C4 E6 NC3 NF6 BG5 NBD7 E3 C6 NF3 QA5 CXD5 NXD5	D52	QGD	Cambridge Springs defense, Yugoslav Variation
D4 D5 C4 E6 NC3 NF6 BG5 NBD7 E3 C6 NF3 QA5 CXD5	D52	QGD	Cambridge Springs defense, 7.cd
D4 D5 C4 E6 NC3 NF6 BG5 NBD7 E3 C6 NF3 QA5 ND2 BB4 QC2 O-O BH4	D52	QGD	Cambridge Springs defense, Argentine Variation
D4 D5 C4 E6 NC3 NF6 BG5 NBD7 E3 C6 NF3 QA5 ND2 BB4 QC2	D52	QGD	Cambridge Springs defense, Bogoljubow Variation
D4 D5 C4 E6 NC3 NF6 BG5 NBD7 E3 C6 NF3 QA5 ND2 DXC4	D52	QGD	Cambridge Springs defense, Rubinstein Variation
D4 D5 C4 E6 NC3 NF6 BG5 NBD7 E3 C6 NF3 QA5	D52	QGD	Cambridge Springs defense
D4 D5 C4 E6 NC3 NF6 BG5 NBD7 E3 C6 NF3	D52	QGD	Capablanca anti-Cambridge Springs Variation
D4 D5 C4 E6 NC3 NF6 BG5 NBD7 E3 C6	D51	QGD	5...c6
D4 D5 C4 E6 NC3 NF6 BG5 NBD7 E3	D51	QGD	Alekhine Variation
D4 D5 C4 E6 NC3 NF6 BG5 NBD7 NF3 C6 E4	D51	QGD	Alekhine Variation
D4 D5 C4 E6 NC3 NF6 BG5 NBD7 NF3 C6 RC1 QA5 BD2	D51	QGD	Rochlin Variation
D4 D5 C4 E6 NC3 NF6 BG5 NBD7	D51	QGD	4.Bg5 Nbd7
D4 D5 C4 E6 NC3 NF6 BG5	D50	QGD	4.Bg5
D4 D5 C4 E6 NC3 NF6 CXD5 EXD5 BG5 BE7 E3 O-O BD3 NBD7 QC2 RE8 NGE2 NF8 O-O-O	D35	QGD	Exchange, chameleon Variation
D4 D5 C4 E6 NC3 NF6 CXD5 EXD5 BG5 C6 QC2	D36	QGD	Exchange, positional line, 6.Qc2
D4 D5 C4 E6 NC3 NF6 CXD5 EXD5 BG5 C6	D35	QGD	Exchange, positional line, 5...c6
D4 D5 C4 E6 NC3 NF6 CXD5 EXD5 BG5	D35	QGD	Exchange, positional line
D4 D5 C4 E6 NC3 NF6 CXD5 EXD5 NF3 NBD7 BF4	D35	QGD	Exchange, Saemisch Variation
D4 D5 C4 E6 NC3 NF6 CXD5	D35	QGD	Exchange Variation
D4 D5 C4 E6 NC3 NF6 NF3 BB4 BG5 DXC4	D39	QGD	Ragozin, Vienna Variation
D4 D5 C4 E6 NC3 NF6 NF3 BB4	D38	QGD	Ragozin Variation
D4 D5 C4 E6 NC3 NF6 NF3 BE7 BF4	D37	QGD	Classical Variation (5.Bf4)
D4 D5 C4 E6 NC3 NF6 NF3 C5 BG5	D40	QGD	Semi-Tarrasch defense, Pillsbury Variation
D4 D5 C4 E6 NC3 NF6 NF3 C5 CXD5 NXD5 E3 NC6 BD3	D42	QGD	Semi-Tarrasch, 7.Bd3
D4 D5 C4 E6 NC3 NF6 NF3 C5 CXD5 NXD5 E3	D41	QGD	Semi-Tarrasch with e3
D4 D5 C4 E6 NC3 NF6 NF3 C5 CXD5 NXD5 E4 NXC3 BXC3 CXD4 CXD4 BB4+ BD2 BXD2+ QXD2 O-O BB5	D41	QGD	Semi-Tarrasch, Kmoch Variation
D4 D5 C4 E6 NC3 NF6 NF3 C5 CXD5 NXD5 E4 NXC3 BXC3 CXD4 CXD4 BB4+ BD2 QA5	D41	QGD	Semi-Tarrasch, San Sebastian Variation
D4 D5 C4 E6 NC3 NF6 NF3 C5 CXD5	D41	QGD	Semi-Tarrasch, 5.cd
D4 D5 C4 E6 NC3 NF6 NF3 C5 E3 NC6 BD3 BD6 O-O O-O QE2 QE7 DXC5 BXC5 E4	D40	QGD	Semi-Tarrasch, Levenfish Variation
D4 D5 C4 E6 NC3 NF6 NF3 C5 E3 NC6 BD3 BD6 O-O O-O	D40	QGD	Semi-Tarrasch, Symmetrical Variation
D4 D5 C4 E6 NC3 NF6 NF3 C5	D40	QGD	Semi-Tarrasch defense
D4 D5 C4 E6 NC3 NF6 NF3 C6 BG5 DXC4 E4 B5 E5 H6 BH4 G5 EXF6 GXH4 NE5	D44	QGD Semi-Slav	Ekstrom Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 BG5 DXC4 E4 B5 E5 H6 BH4 G5 NXG5 HXG5 BXG5 NBD7 G3	D44	QGD Semi-Slav	Anti-Meran, Lilienthal Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 BG5 DXC4 E4 B5 E5 H6 BH4 G5 NXG5 HXG5 BXG5 NBD7 QF3	D44	QGD Semi-Slav	Anti-Meran, Szabo Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 BG5 DXC4 E4 B5 E5 H6 BH4 G5 NXG5 ND5	D44	QGD Semi-Slav	Anti-Meran, Alatortsev system
D4 D5 C4 E6 NC3 NF6 NF3 C6 BG5 DXC4 E4 B5 E5 H6 BH4 G5 NXG5	D44	QGD Semi-Slav	Anti-Meran gambit
D4 D5 C4 E6 NC3 NF6 NF3 C6 BG5 DXC4 E4	D44	QGD Semi-Slav	Botvinnik system (anti-Meran)
D4 D5 C4 E6 NC3 NF6 NF3 C6 BG5 DXC4	D44	QGD Semi-Slav	5.Bg5 dc
D4 D5 C4 E6 NC3 NF6 NF3 C6 BG5 H6 BXF6 QXF6 QB3	D43	QGD Semi-Slav	Hastings Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 A6	D45	QGD Semi-Slav	Accelerated Meran (Alekhine Variation )
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 BB4	D46	QGD Semi-Slav	Romih Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 BD6	D46	QGD Semi-Slav	Chigorin defense
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 BE7	D46	QGD Semi-Slav	Bogolyubov Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4 B5 BD3 A6 E4 B4	D48	QGD Semi-Slav	Meran, Pirc Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4 B5 BD3 A6 E4 C5	D48	QGD Semi-Slav	Meran
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4 B5 BD3 A6 E4 C5 D5	D48	QGD Semi-Slav	Meran, ReynOlds' Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4 B5 BD3 A6 E4 C5 E5	D48	QGD Semi-Slav	Meran, Old Main line
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4 B5 BD3 A6 E4 C5 E5 CXD4 NXB5	D49	QGD Semi-Slav	Meran, Blumenfeld Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4 B5 BD3 A6 E4 C5 E5 CXD4 NXB5 NG4	D49	QGD Semi-Slav	Meran, Rabinovich Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4 B5 BD3 A6 E4 C5 E5 CXD4 NXB5 NXE5	D49	QGD Semi-Slav	Meran, Sozin Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4 B5 BD3 A6 E4 C5 E5 CXD4 NXB5 NXE5 NXE5 AXB5 QF3	D49	QGD Semi-Slav	Meran, Stahlberg Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4 B5 BD3 A6 E4 C5 E5 CXD4 NXB5 NXE5 NXE5 AXB5 O-O	D49	QGD Semi-Slav	Meran, Sozin Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4 B5 BD3 A6 E4 C5 E5 CXD4 NXB5 NXE5 NXE5 AXB5 O-O QD5 QE2 BA6 BG5	D49	QGD Semi-Slav	Meran, Rellstab attack
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4 B5 BD3 A6	D48	QGD Semi-Slav	Meran, 8...a6
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4 B5 BD3 B4	D47	QGD Semi-Slav	neo-Meran (Lundin Variation )
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4 B5 BD3 BB7	D47	QGD Semi-Slav	Meran, Wade Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4 B5	D47	QGD Semi-Slav	Meran Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3 DXC4 BXC4	D47	QGD Semi-Slav	7.Bc4
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 BD3	D46	QGD Semi-Slav	6.Bd3
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 NE5	D45	QGD Semi-Slav	Rubinstein (anti-Meran) system
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7 QC2	D45	QGD Semi-Slav	Stoltz Variation
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NBD7	D45	QGD Semi-Slav	5...Nd7
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3 NE4 BD3 F5	D45	QGD Semi-Slav	Stonewall defense
D4 D5 C4 E6 NC3 NF6 NF3 C6 E3	D45	QGD Semi-Slav	5.e3
D4 D5 C4 E6 NC3 NF6 NF3 C6	D43	QGD Semi-Slav	Semi-Tarrasch, 7.Bd3
D4 D5 C4 E6 NC3 NF6 NF3	D37	QGD	4.Nf3
D4 D5 C4 E6 NC3 NF6	D35	QGD	3...Nf6
D4 D5 C4 E6 NC3	D31	QGD	3.Nc3
D4 D5 C4 E6 NF3 NF6 BG5 BB4	D30	QGD	Vienna Variation
D4 D5 C4 E6 NF3 NF6 BG5 H6 BXF6 QXF6 NC3 C6 QB3	D30	QGD	Hastings Variation
D4 D5 C4 E6 NF3 NF6 BG5 H6	D30	QGD	Capablanca-Duras Variation
D4 D5 C4 E6 NF3 NF6 BG5 NBD7 E3 C6 NBD2	D30	QGD	Capablanca Variation
D4 D5 C4 E6 NF3 NF6 BG5	D30	QGD	Spielmann Variation
D4 D5 C4 E6 NF3 NF6 E3 C6 NBD2 G6	D30	QGD	Spielmann Variation
D4 D5 C4 E6 NF3 NF6 E3 C6 NBD2 NBD7 BD3 C5	D30	QGD Slav	Semmering Variation
D4 D5 C4 E6 NF3 NF6 E3 C6 NBD2 NBD7	D30	QGD Slav	Stonewall Variation
D4 D5 C4 E6 NF3 NF6 E3 C6 NBD2 NE4 BD3 F5	D30	QGD	Stonewall Variation
D4 D5 C4 E6 NF3 NF6 E3 C6 NBD2	D30	QGD Slav	Classical, Smyslov Variation
D4 D5 C4 E6	D30	Queen's gambit declined	Classical, Smyslov Variation
D4 D5 C4 NC6 NC3 DXC4 NF3	D07	QGD	Chigorin defense, Janowski Variation
D4 D5 C4 NC6	D07	QGD	Chigorin defense
D4 D5 C4 NF6	D06	QGD	Marshall defense
D4 D5 C4	D06	Queen's Gambit	Lemberg counter-gambit
D4 D5 E3 NF6 BD3	D00	Queen's pawn	Stonewall attack
D4 D5 E4	D00	Blackmar gambit	Closed, Chigorin, 12...c5d4
D4 D5 NC3 BG4	D00	Queen's pawn	Anti-Veresov
D4 D5 NC3 NF6 BG5 BF5 BXF6	D01	Richter-Veresov attack, Veresov Variation 	Lemberg counter-gambit
D4 D5 NC3 NF6 BG5 BF5 F3	D01	Richter-Veresov attack, Richter Variation 	Lemberg counter-gambit
D4 D5 NC3 NF6 BG5	D01	Richter-Veresov attack	Lemberg counter-gambit
D4 D5 NC3 NF6 E4 DXE4 F3 EXF3 NXF3 E6	D00	Blackmar-Diemer	Euwe defense
D4 D5 NC3 NF6 E4 E5	D00	Blackmar-Diemer	Lemberg counter-gambit
D4 D5 NC3 NF6 E4	D00	Blackmar-Diemer gambit	Anti-Veresov
D4 D5 NC3	D00	Queen's pawn	Chigorin Variation
D4 D5 NF3 C5	D02	Queen's pawn game, Krause Variation 	Lemberg counter-gambit
D4 D5 NF3 NC6	D02	Queen's pawn game, Chigorin Variation 	Lemberg counter-gambit
D4 D5 NF3 NF6 BF4	D02	Queen's Bishop game	Lemberg counter-gambit
D4 D5 NF3 NF6 BG5	D03	Torre attack (Tartakower Variation )	Lemberg counter-gambit
D4 D5 NF3 NF6 E3 E6 BD3 C5 B3	D05	Queen's pawn game, Rubinstein (Colle-Zukertort) Variation 	Lemberg counter-gambit
D4 D5 NF3 NF6 E3 E6 BD3 C5 C3	D05	Colle system	Lemberg counter-gambit
D4 D5 NF3 NF6 E3 E6 BD3	D05	Queen's pawn game	Lemberg counter-gambit
D4 D5 NF3 NF6 E3 E6 NBD2 C5 B3	D05	Queen's pawn game, Zukertort Variation 	Lemberg counter-gambit
D4 D5 NF3 NF6 E3 E6	D05	Queen's pawn game	Lemberg counter-gambit
D4 D5 NF3 NF6 E3	D04	Queen's pawn game	Lemberg counter-gambit
D4 D5 NF3 NF6	D02	Queen's pawn game	Lemberg counter-gambit
D4 D5 NF3	D02	Queen's pawn game	Lemberg counter-gambit
D4 D5	D00	Queen's pawn game	Closed, Chigorin, 12...c5d4
D4 D6 C4 G6 NC3 BG7 E4 C5 NF3 QA5	A42	Pterodactyl defense	Averbakh system
D4 D6 C4 G6 NC3 BG7 E4 F5	A42	Modern defense	Averbakh system, Randspringer Variation
D4 D6 C4 G6 NC3 BG7 E4 NC6	A42	Modern defense	Averbakh system, Kotov Variation
D4 D6 C4 G6 NC3 BG7 E4	A42	Modern defense	Averbakh system
D4 D6 C4 G6 NC3 BG7	A41	Modern defense	Tartakower (Wade) Variation
D4 D6 C4	A41	Old Indian defense	Tartakower (Wade) Variation
D4 D6 NF3 BG4	A41	Old Indian	Tartakower (Wade) Variation
D4 D6	A41	Queen's Pawn	Franco-Indian (Keres) defense
D4 E5 DXE5 NC6 NF3 QE7 QD5 F6 EXF6 NXF6	A40	Queen's pawn	Englund gambit
D4 E5	A40	Queen's pawn	Charlick (Englund) gambit
D4 E6 C4 B6	A40	Queen's pawn	Keres defense
D4 E6 C4 BB4	A40	Queen's pawn	Franco-Indian (Keres) defense
D4 E6	A40	Queen's pawn	English defense
D4 F5 BG5	A80	Dutch, 2.Bg5 Variation 	Classical, 11.f3
D4 F5 C4 E6 E4	A84	Dutch	Staunton gambit deferred
D4 F5 C4 E6 NC3	A84	Dutch defense, Rubinstein Variation 	Bladel Variation
D4 F5 C4 E6	A84	Dutch defense	Bladel Variation
D4 F5 C4 G6 NC3 NH6	A84	Dutch defense	Bladel Variation
D4 F5 C4 NF6 G3 D6 BG2 C6 NC3 QC7	A86	Dutch	Hort-Antoshin system
D4 F5 C4 NF6 G3 E6 BG2 BB4	A90	Dutch defense	Dutch-Indian (Nimzo-Dutch) Variation
D4 F5 C4 NF6 G3 E6 BG2 BB4+ BD2 BE7	A90	Dutch-Indian, Alekhine Variation 	Dutch-Indian (Nimzo-Dutch) Variation
D4 F5 C4 NF6 G3 E6 BG2 BE7 NF3 O-O O-O D5 B3 C6 BA3	A94	Dutch	Stonewall with Ba3
D4 F5 C4 NF6 G3 E6 BG2 BE7 NF3 O-O O-O D5 B3	A93	Dutch	Stonewall, Botwinnik Variation
D4 F5 C4 NF6 G3 E6 BG2 BE7 NF3 O-O O-O D5 NC3 C6 QC2 QE8 BG5	A95	Dutch	Stonewall: Chekhover Variation
D4 F5 C4 NF6 G3 E6 BG2 BE7 NF3 O-O O-O D5 NC3 C6	A95	Dutch	Stonewall with Nc3
D4 F5 C4 NF6 G3 E6 BG2 BE7 NF3 O-O O-O D5 NC3	A92	Dutch	Stonewall with Nc3
D4 F5 C4 NF6 G3 E6 BG2 BE7 NF3 O-O O-O D5	A92	Dutch	Stonewall Variation
D4 F5 C4 NF6 G3 E6 BG2 BE7 NF3 O-O O-O D6 NC3 QE8 B3	A99	Dutch	Ilyin-Genevsky Variation with b3
D4 F5 C4 NF6 G3 E6 BG2 BE7 NF3 O-O O-O D6 NC3 QE8 QC2	A98	Dutch	Ilyin-Genevsky Variation with Qc2
D4 F5 C4 NF6 G3 E6 BG2 BE7 NF3 O-O O-O D6 NC3 QE8 RE1	A97	Dutch	Ilyin-Genevsky, Winter Variation
D4 F5 C4 NF6 G3 E6 BG2 BE7 NF3 O-O O-O D6 NC3 QE8	A97	Dutch	Ilyin-Genevsky Variation
D4 F5 C4 NF6 G3 E6 BG2 BE7 NF3 O-O O-O D6	A96	Dutch	Classical Variation
D4 F5 C4 NF6 G3 E6 BG2 BE7 NF3 O-O O-O NE4	A92	Dutch defense, Alekhine Variation 	Dutch-Indian (Nimzo-Dutch) Variation
D4 F5 C4 NF6 G3 E6 BG2 BE7 NF3 O-O	A92	Dutch defense	Dutch-Indian (Nimzo-Dutch) Variation
D4 F5 C4 NF6 G3 E6 BG2 BE7	A91	Dutch defense	Dutch-Indian (Nimzo-Dutch) Variation
D4 F5 C4 NF6 G3 E6 BG2	A90	Dutch defense	Leningrad, Main Variation with Nc6
D4 F5 C4 NF6 G3 G6 BG2 BG7 NF3 O-O O-O D6 NC3 C6	A88	Dutch	Leningrad, Main Variation with c6
D4 F5 C4 NF6 G3 G6 BG2 BG7 NF3 O-O O-O D6 NC3 NC6	A89	Dutch	Leningrad, Main Variation with Nc6
D4 F5 C4 NF6 G3 G6 BG2 BG7 NF3	A87	Dutch	Leningrad, Main Variation
D4 F5 C4 NF6 G3 G6	A86	Dutch	Leningrad Variation
D4 F5 C4 NF6 G3	A86	Dutch with c4 & g3	Staunton gambit deferred
D4 F5 C4 NF6 NC3	A85	Dutch with c4 & Nc3	Staunton gambit deferred
D4 F5 C4 NF6	A84	Dutch defense	Staunton gambit deferred
D4 F5 C4	A84	Dutch defense	Staunton gambit, Nimzovich Variation
D4 F5 E4 D6	A82	Dutch	Balogh defense
D4 F5 E4 FXE4 NC3 NF6 BG5 B6	A83	Dutch	Staunton gambit, Nimzovich Variation
D4 F5 E4 FXE4 NC3 NF6 BG5 C6	A83	Dutch	Staunton gambit, Chigorin Variation
D4 F5 E4 FXE4 NC3 NF6 BG5 G6 F3	A83	Dutch	Staunton gambit, Lasker Variation
D4 F5 E4 FXE4 NC3 NF6 BG5 G6 H4	A83	Dutch	Staunton gambit, Alekhine Variation
D4 F5 E4 FXE4 NC3 NF6 BG5	A83	Dutch	Staunton gambit, Staunton's line
D4 F5 E4 FXE4 NC3 NF6 G4	A82	Dutch	Staunton gambit, Tartakower Variation
D4 F5 E4 FXE4	A82	Dutch	Staunton gambit
D4 F5 E4	A82	Dutch	Staunton gambit
D4 F5 G3 G6 BG2 BG7 NF3 C6 O-O NH6	A81	Dutch	Leningrad, Basman system
D4 F5 G3 G6 BG2 BG7 NH3	A81	Dutch	Leningrad, Karlsbad Variation
D4 F5 G3 NF6 BG2 E6 NH3	A81	Dutch defense, Blackburne Variation 	Classical, 11.f3
D4 F5 G3 NF6 BG2 G6	A81	Dutch defense	Classical, 11.f3
D4 F5 G3	A81	Dutch defense	Classical, 11.f3
D4 F5 G4	A80	Dutch, Krejcik gambit	Classical, 11.f3
D4 F5 H3	A80	Dutch, Korchnoi attack	Classical, 11.f3
D4 F5 NC3 NF6 G4	A80	Dutch, Spielmann gambit	Classical, 11.f3
D4 F5 QD3 E6 G4	A80	Dutch, Von Pretzel gambit	Classical, 11.f3
D4 F5 QD3	A80	Dutch, Manhattan (Alapin, Ulvestad) Variation 	Classical, 11.f3
D4 F5	A80	Dutch	Classical, 11.f3
D4 G6 C4 BG7 NC3 C5 D5 BXC3+ BXC3 F5	A40	Beefeater defense	Franco-Indian (Keres) defense
D4 G6	A40	Modern defense	Franco-Indian (Keres) defense
D4 NC6	A40	Queen's pawn	Lundin (Kevitz-Mikenas) defense
D4 NF6 BG5	A45	Trompovsky attack (Ruth, Opovcensky Opening)	Bronstein gambit
D4 NF6 C4 B6	A50	Queen's Indian Accelerated	Fianchetto without c4
D4 NF6 C4 C5 D5 B5 CXB5 A6 BXA6 BXA6 NC3 D6 E4 BXF1 KXF1 G6 G3 BG7 KG2 O-O NF3	A59	Benko gambit	Main line
D4 NF6 C4 C5 D5 B5 CXB5 A6 BXA6 BXA6 NC3 D6 E4 BXF1 KXF1 G6 G3	A59	Benko gambit	Ne2 Variation
D4 NF6 C4 C5 D5 B5 CXB5 A6 BXA6 BXA6 NC3 D6 E4 BXF1 KXF1 G6 NGE2	A59	Benko gambit	Ne2 Variation
D4 NF6 C4 C5 D5 B5 CXB5 A6 BXA6 BXA6 NC3 D6 E4	A59	Benko gambit	7.e4
D4 NF6 C4 C5 D5 B5 CXB5 A6 BXA6 BXA6 NC3 D6 NF3 G6 G3	A58	Benko gambit	Fianchetto Variation
D4 NF6 C4 C5 D5 B5 CXB5 A6 BXA6 BXA6 NC3 D6 NF3 G6 ND2	A58	Benko gambit	Nd2 Variation
D4 NF6 C4 C5 D5 B5 CXB5 A6 BXA6	A58	Benko gambit accepted	Nescafe Frappe attack
D4 NF6 C4 C5 D5 B5 CXB5 A6 NC3 AXB5 E4 B4 NB5 D6 BC4	A57	Benko gambit	Nescafe Frappe attack
D4 NF6 C4 C5 D5 B5 CXB5 A6 NC3	A57	Benko gambit	Zaitsev system
D4 NF6 C4 C5 D5 B5 CXB5 A6	A57	Benko gambit half accepted	King's Indian system
D4 NF6 C4 C5 D5 B5	A57	Benko gambit	King's Indian system
D4 NF6 C4 C5 D5 D6	A56	Benoni defense, Hromodka system	Main line
D4 NF6 C4 C5 D5 E5 NC3 D6 E4 G6	A56	Czech Benoni	King's Indian system
D4 NF6 C4 C5 D5 E5	A56	Czech Benoni defense	Main line
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 F4 BG7 BB5	A67	Benoni	Taimanov Variation
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 F4 BG7 E5	A66	Benoni	Mikenas Variation
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 F4 BG7 NF3 O-O BE2 RE8	A69	Benoni	Four pawns attack, Main line
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 F4 BG7 NF3 O-O	A68	Benoni	Four pawns attack
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 F4	A66	Benoni	pawn storm Variation
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 NF3 BG7 BE2 O-O O-O A6 A4	A74	Benoni	Classical, 9...a6, 10.a4
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 NF3 BG7 BE2 O-O O-O A6 A4 BG4	A75	Benoni	Classical with ...a6 and 10...Bg4
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 NF3 BG7 BE2 O-O O-O RE8	A76	Benoni	Classical, 9...Re8
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 NF3 BG7 BE2 O-O O-O RE8 ND2	A77	Benoni	Classical, 9...Re8, 10.Nd2
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 NF3 BG7 BE2 O-O O-O RE8 ND2 NA6	A78	Benoni	Classical with ...Re8 and ...Na6
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 NF3 BG7 BE2 O-O O-O RE8 ND2 NA6 F3	A79	Benoni	Classical, 11.f3
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 NF3 BG7 BE2 O-O O-O	A73	Benoni	Classical, 9.O-O
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 NF3 BG7 BE2 O-O	A72	Benoni	Classical without 9.O-O
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 NF3 BG7 BE2	A70	Benoni	Classical without 9.O-O
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 NF3 BG7 BG5	A71	Benoni	Classical, 8.Bg5
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4 G6 NF3	A70	Benoni	Classical with e4 and Nf3
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 E4	A65	Benoni	6.e4
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 NF3 G6 BG5	A61	Benoni	Uhlmann Variation
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 NF3 G6 G3 BG7 BG2 O-O O-O NBD7	A63	Benoni	Fianchetto, 9...Nbd7
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 NF3 G6 G3 BG7 BG2 O-O O-O NBD7 ND2 A6 A4 RE8	A64	Benoni	Fianchetto, 11...Re8
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 NF3 G6 G3 BG7 BG2 O-O	A62	Benoni	Fianchetto Variation
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 NF3 G6 G3	A61	Benoni	Fianchetto Variation
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 NF3 G6 ND2	A61	Benoni	Nimzovich (knight's tour) Variation
D4 NF6 C4 C5 D5 E6 NC3 EXD5 CXD5 D6 NF3 G6	A61	Benoni defense	Main line
D4 NF6 C4 C5 D5 E6	A60	Benoni defense	Main line
D4 NF6 C4 C5 D5 NE4	A56	Vulture defense	Main line
D4 NF6 C4 C5	A56	Benoni defense	Main line
D4 NF6 C4 D6 NC3 BF5	A53	Old Indian	Janowski Variation
D4 NF6 C4 D6 NC3 E5 E3 NBD7 BD3	A54	Old Indian	Dus-Khotimirsky Variation
D4 NF6 C4 D6 NC3 E5 NF3 NBD7 E4	A55	Old Indian	Main line
D4 NF6 C4 D6 NC3 E5 NF3	A54	Old Indian	Ukrainian Variation , 4.Nf3
D4 NF6 C4 D6 NC3 E5	A54	Old Indian	Ukrainian Variation
D4 NF6 C4 D6	A53	Old Indian defense	Alekhine Variation , Balogh gambit
D4 NF6 C4 E5 DXE5 NE4 QC2	A51	Budapest	Fajarowicz, Steiner Variation
D4 NF6 C4 E5 DXE5 NE4	A51	Budapest	Fajarowicz Variation
D4 NF6 C4 E5 DXE5 NG4 BF4	A52	Budapest	Rubinstein Variation
D4 NF6 C4 E5 DXE5 NG4 E4 D6	A52	Budapest	Alekhine Variation , Balogh gambit
D4 NF6 C4 E5 DXE5 NG4 E4 NXE5 F4 NEC6	A52	Budapest	Alekhine, Abonyi Variation
D4 NF6 C4 E5 DXE5 NG4 E4	A52	Budapest	Alekhine Variation
D4 NF6 C4 E5 DXE5 NG4 NF3	A52	Budapest	Adler Variation
D4 NF6 C4 E5 DXE5 NG4	A52	Budapest defense	Fajarowicz, Steiner Variation
D4 NF6 C4 E5	A51	Budapest defense declined	Fianchetto without c4
D4 NF6 C4 E6 BG5	E00	Neo-Indian (Seirawan) attack	Smyslov, Yugoslav Variation
D4 NF6 C4 E6 G3 D5 BG2 BE7 NF3 O-O O-O NBD7 NC3 C6 QD3	E07	Catalan	Closed, Botvinnik Variation
D4 NF6 C4 E6 G3 D5 BG2 BE7 NF3 O-O O-O NBD7 QC2 C6 B3 B6 RD1 BB7 NC3 B5	E08	Catalan	Closed, Spassky gambit
D4 NF6 C4 E6 G3 D5 BG2 BE7 NF3 O-O O-O NBD7 QC2 C6 B3	E08	Catalan	Closed, Qc2 & b3
D4 NF6 C4 E6 G3 D5 BG2 BE7 NF3 O-O O-O NBD7 QC2 C6 NBD2 B6 B3 A5 BB2 BA6	E09	Catalan	Closed, Sokolsky Variation
D4 NF6 C4 E6 G3 D5 BG2 BE7 NF3 O-O O-O NBD7 QC2 C6 NBD2	E09	Catalan	Closed, Main line
D4 NF6 C4 E6 G3 D5 BG2 BE7 NF3 O-O O-O NBD7 QC2 C6 RD1 B6 A4	E08	Catalan	Closed, Zagoryansky Variation
D4 NF6 C4 E6 G3 D5 BG2 BE7 NF3 O-O O-O NBD7 QC2	E08	Catalan	Closed, 7.Qc2
D4 NF6 C4 E6 G3 D5 BG2 BE7 NF3 O-O O-O NBD7	E07	Catalan	Closed, 6...Nbd7
D4 NF6 C4 E6 G3 D5 BG2 BE7 NF3	E06	Catalan	Closed, 5.Nf3
D4 NF6 C4 E6 G3 D5 BG2 DXC4 NF3 BE7	E05	Catalan	Open, Classical line
D4 NF6 C4 E6 G3 D5 BG2 DXC4 NF3	E04	Catalan	Open, 5.Nf3
D4 NF6 C4 E6 G3 D5 BG2 DXC4 QA4	E02	Catalan	Open, 5.Qa4
D4 NF6 C4 E6 G3 D5 BG2 DXC4 QA4+ NBD7 QXC4 A6 QC2	E03	Catalan	Open, Alekhine Variation
D4 NF6 C4 E6 G3 D5 BG2 DXC4 QA4+ NBD7 QXC4	E03	Catalan	Open, 5.Qa4 Nbd7, 6.Qxc4
D4 NF6 C4 E6 G3 D5 BG2	E01	Catalan	Closed
D4 NF6 C4 E6 G3	E00	Catalan Opening	Smyslov, Yugoslav Variation
D4 NF6 C4 E6 NC3 BB4 A3 BXC3+ BXC3 C5 E3 B6	E26	Nimzo-Indian	Saemisch, O'Kelly Variation
D4 NF6 C4 E6 NC3 BB4 A3 BXC3+ BXC3 C5 E3	E26	Nimzo-Indian	Saemisch Variation
D4 NF6 C4 E6 NC3 BB4 A3 BXC3+ BXC3 C5 F3 D5 CXD5 NXD5 DXC5 F5	E25	Nimzo-Indian	Saemisch, Romanovsky Variation
D4 NF6 C4 E6 NC3 BB4 A3 BXC3+ BXC3 C5 F3 D5 CXD5 NXD5 DXC5	E25	Nimzo-Indian	Saemisch, Keres Variation
D4 NF6 C4 E6 NC3 BB4 A3 BXC3+ BXC3 C5 F3 D5 CXD5	E25	Nimzo-Indian	Saemisch Variation
D4 NF6 C4 E6 NC3 BB4 A3 BXC3+ BXC3 C5 F3 D5 E3 O-O CXD5 NXD5	E24	Nimzo-Indian	Saemisch, Botvinnik Variation
D4 NF6 C4 E6 NC3 BB4 A3 BXC3+ BXC3 O-O E3 C5 BD3 NC6 NE2 B6 E4 NE8	E29	Nimzo-Indian	Saemisch, Capablanca Variation
D4 NF6 C4 E6 NC3 BB4 A3 BXC3+ BXC3 O-O E3 C5 BD3 NC6	E29	Nimzo-Indian	Saemisch, Main line
D4 NF6 C4 E6 NC3 BB4 A3 BXC3+ BXC3 O-O E3	E28	Nimzo-Indian	Saemisch Variation
D4 NF6 C4 E6 NC3 BB4 A3 BXC3+ BXC3 O-O	E27	Nimzo-Indian	Saemisch Variation
D4 NF6 C4 E6 NC3 BB4 A3 BXC3+ BXC3	E24	Nimzo-Indian	Saemisch Variation
D4 NF6 C4 E6 NC3 BB4 BG5 H6 BH4 C5 D5 B5	E30	Nimzo-Indian	Leningrad, ...b5 gambit
D4 NF6 C4 E6 NC3 BB4 BG5 H6 BH4 C5 D5 D6	E31	Nimzo-Indian	Leningrad, Main line
D4 NF6 C4 E6 NC3 BB4 BG5	E30	Nimzo-Indian	Leningrad Variation
D4 NF6 C4 E6 NC3 BB4 E3 B6 NE2 BA6	E45	Nimzo-Indian	4.e3, Bronstein (Byrne) Variation
D4 NF6 C4 E6 NC3 BB4 E3 B6 NE2	E44	Nimzo-Indian	Fischer Variation , 5.Ne2
D4 NF6 C4 E6 NC3 BB4 E3 B6	E43	Nimzo-Indian	Fischer Variation
D4 NF6 C4 E6 NC3 BB4 E3 C5 BD3 NC6 NF3 BXC3+ BXC3 D6	E41	Nimzo-Indian	e3, Huebner Variation
D4 NF6 C4 E6 NC3 BB4 E3 C5 NE2	E42	Nimzo-Indian	4.e3 c5, 5.Ne2 (Rubinstein)
D4 NF6 C4 E6 NC3 BB4 E3 C5	E41	Nimzo-Indian	4.e3 c5
D4 NF6 C4 E6 NC3 BB4 E3 NC6	E40	Nimzo-Indian	4.e3, Taimanov Variation
D4 NF6 C4 E6 NC3 BB4 E3 O-O BD3 D5 A3 BXC3+ BXC3	E49	Nimzo-Indian	4.e3, Botvinnik system
D4 NF6 C4 E6 NC3 BB4 E3 O-O BD3 D5	E48	Nimzo-Indian	4.e3 O-O, 5.Bd3 d5
D4 NF6 C4 E6 NC3 BB4 E3 O-O BD3	E47	Nimzo-Indian	4.e3 O-O, 5.Bd3
D4 NF6 C4 E6 NC3 BB4 E3 O-O NE2 D5 A3 BD6	E46	Nimzo-Indian	Simagin Variation
D4 NF6 C4 E6 NC3 BB4 E3 O-O NE2	E46	Nimzo-Indian	Reshevsky Variation
D4 NF6 C4 E6 NC3 BB4 E3 O-O NF3 D5 BD3 B6	E52	Nimzo-Indian	4.e3, Main line with ...b6
D4 NF6 C4 E6 NC3 BB4 E3 O-O NF3 D5 BD3 C5 O-O B6	E53	Nimzo-Indian	4.e3, Keres Variation
D4 NF6 C4 E6 NC3 BB4 E3 O-O NF3 D5 BD3 C5 O-O DXC4 BXC4 NBD7	E55	Nimzo-Indian	4.e3, Gligoric system, Bronstein Variation
D4 NF6 C4 E6 NC3 BB4 E3 O-O NF3 D5 BD3 C5 O-O DXC4 BXC4 QE7	E54	Nimzo-Indian	4.e3, Gligoric system, Smyslov Variation
D4 NF6 C4 E6 NC3 BB4 E3 O-O NF3 D5 BD3 C5 O-O DXC4 BXC4	E54	Nimzo-Indian	4.e3, Gligoric system with 7...dc
D4 NF6 C4 E6 NC3 BB4 E3 O-O NF3 D5 BD3 C5 O-O NBD7	E53	Nimzo-Indian	4.e3, Gligoric system with 7...Nbd7
D4 NF6 C4 E6 NC3 BB4 E3 O-O NF3 D5 BD3 C5 O-O NC6 A3 BXC3 BXC3 DXC4 BXC4	E59	Nimzo-Indian	4.e3, Main line
D4 NF6 C4 E6 NC3 BB4 E3 O-O NF3 D5 BD3 C5 O-O NC6 A3 BXC3 BXC3	E58	Nimzo-Indian	4.e3, Main line with 8...Bxc3
D4 NF6 C4 E6 NC3 BB4 E3 O-O NF3 D5 BD3 C5 O-O NC6 A3 DXC4 BXC4 CXD4	E57	Nimzo-Indian	4.e3, Main line with 8...dc and 9...cd
D4 NF6 C4 E6 NC3 BB4 E3 O-O NF3 D5 BD3 C5 O-O NC6	E56	Nimzo-Indian	4.e3, Main line with 7...Nc6
D4 NF6 C4 E6 NC3 BB4 E3 O-O NF3 D5 BD3 C5	E53	Nimzo-Indian	4.e3, Main line with ...c5
D4 NF6 C4 E6 NC3 BB4 E3 O-O NF3 D5 BD3 NC6 O-O DXC4	E51	Nimzo-Indian	4.e3, Ragozin Variation
D4 NF6 C4 E6 NC3 BB4 E3 O-O NF3 D5	E51	Nimzo-Indian	4.e3 e8g8, 5.Nf3 d7d5
D4 NF6 C4 E6 NC3 BB4 E3 O-O NF3	E50	Nimzo-Indian	4.e3 e8g8, 5.Nf3, without ...d5
D4 NF6 C4 E6 NC3 BB4 E3 O-O	E46	Nimzo-Indian	4.e3 O-O
D4 NF6 C4 E6 NC3 BB4 E3	E40	Nimzo-Indian	4.e3
D4 NF6 C4 E6 NC3 BB4 F3	E20	Nimzo-Indian	Kmoch Variation
D4 NF6 C4 E6 NC3 BB4 G3	E20	Nimzo-Indian	Romanishin-Kasparov (Steiner) system
D4 NF6 C4 E6 NC3 BB4 NF3 C5 D5 NE4	E21	Nimzo-Indian	Three knights, Euwe Variation
D4 NF6 C4 E6 NC3 BB4 NF3 C5 D5	E21	Nimzo-Indian	Three knights, Korchnoi Variation
D4 NF6 C4 E6 NC3 BB4 NF3	E21	Nimzo-Indian	Three knights Variation
D4 NF6 C4 E6 NC3 BB4 QB3 C5 DXC5 NC6 NF3 NE4 BD2 NXC5 QC2 F5 G3	E23	Nimzo-Indian	Spielmann, Staahlberg Variation
D4 NF6 C4 E6 NC3 BB4 QB3 C5 DXC5 NC6 NF3 NE4 BD2 NXC5	E23	Nimzo-Indian	Spielmann, San Remo Variation
D4 NF6 C4 E6 NC3 BB4 QB3 C5 DXC5 NC6 NF3 NE4 BD2 NXD2	E23	Nimzo-Indian	Spielmann, Karlsbad Variation
D4 NF6 C4 E6 NC3 BB4 QB3 C5 DXC5 NC6	E23	Nimzo-Indian	Spielmann, 4...c5, 5.dc Nc6
D4 NF6 C4 E6 NC3 BB4 QB3	E22	Nimzo-Indian	Spielmann Variation
D4 NF6 C4 E6 NC3 BB4 QC2 C5 DXC5 O-O	E39	Nimzo-Indian	Classical, Pirc Variation
D4 NF6 C4 E6 NC3 BB4 QC2 C5	E38	Nimzo-Indian	Classical, 4...c5
D4 NF6 C4 E6 NC3 BB4 QC2 D5 A3 BXC3+ QXC3 NC6	E36	Nimzo-Indian	Classical, Botvinnik Variation
D4 NF6 C4 E6 NC3 BB4 QC2 D5 A3 BXC3+ QXC3 NE4 QC2 NC6 E3 E5	E37	Nimzo-Indian	Classical, San Remo Variation
D4 NF6 C4 E6 NC3 BB4 QC2 D5 A3 BXC3+ QXC3 NE4 QC2	E37	Nimzo-Indian	Classical, Noa Variation , Main line, 7.Qc2
D4 NF6 C4 E6 NC3 BB4 QC2 D5 A3 BXC3+ QXC3 NE4	E36	Nimzo-Indian	Classical, Noa Variation , Main line
D4 NF6 C4 E6 NC3 BB4 QC2 D5 A3	E36	Nimzo-Indian	Classical, Noa Variation , 5.a3
D4 NF6 C4 E6 NC3 BB4 QC2 D5 CXD5 EXD5	E35	Nimzo-Indian	Classical, Noa Variation , 5.cd ed
D4 NF6 C4 E6 NC3 BB4 QC2 D5	E34	Nimzo-Indian	Classical, Noa Variation
D4 NF6 C4 E6 NC3 BB4 QC2 NC6 NF3 D6	E33	Nimzo-Indian	Classical, Milner-Barry (Zurich) Variation
D4 NF6 C4 E6 NC3 BB4 QC2 NC6	E33	Nimzo-Indian	Classical, 4...Nc6
D4 NF6 C4 E6 NC3 BB4 QC2 O-O A3 BXC3+ QXC3 B5	E32	Nimzo-Indian	Classical, Adorjan gambit
D4 NF6 C4 E6 NC3 BB4 QC2	E32	Nimzo-Indian	Classical Variation
D4 NF6 C4 E6 NC3 BB4 QD3	E20	Nimzo-Indian	Mikenas attack
D4 NF6 C4 E6 NC3 BB4	E20	Nimzo-Indian defense	Old Main line, 9.Qxc3
D4 NF6 C4 E6 NF3 A6	E10	Dzindzikhashvili defense	Closed, Sokolsky Variation
D4 NF6 C4 E6 NF3 B6 A3	E12	Queen's Indian	Petrosian system
D4 NF6 C4 E6 NF3 B6 BF4	E12	Queen's Indian	Miles Variation
D4 NF6 C4 E6 NF3 B6 E3 BB7 BD3 C5 O-O BE7 B3 O-O BB2 CXD4 NXD4	E14	Queen's Indian	Averbakh Variation
D4 NF6 C4 E6 NF3 B6 E3	E14	Queen's Indian	4.e3
D4 NF6 C4 E6 NF3 B6 G3 BA6	E15	Queen's Indian	Nimzovich Variation (exaggerated Fianchetto)
D4 NF6 C4 E6 NF3 B6 G3 BB7 BG2 BB4	E16	Queen's Indian	Capablanca Variation
D4 NF6 C4 E6 NF3 B6 G3 BB7 BG2 BB4+ BD2 A5	E16	Queen's Indian	Yates Variation
D4 NF6 C4 E6 NF3 B6 G3 BB7 BG2 BB4+ BD2 BE7	E16	Queen's Indian	Riumin Variation
D4 NF6 C4 E6 NF3 B6 G3 BB7 BG2 BE7 NC3 NE4 BD2	E17	Queen's Indian	Opovcensky Variation
D4 NF6 C4 E6 NF3 B6 G3 BB7 BG2 BE7 NC3	E17	Queen's Indian	Anti-Queen's Indian system
D4 NF6 C4 E6 NF3 B6 G3 BB7 BG2 BE7 O-O O-O B3	E17	Queen's Indian	Euwe Variation
D4 NF6 C4 E6 NF3 B6 G3 BB7 BG2 BE7 O-O O-O NC3 NE4 QC2 NXC3 QXC3	E19	Queen's Indian	Old Main line, 9.Qxc3
D4 NF6 C4 E6 NF3 B6 G3 BB7 BG2 BE7 O-O O-O NC3	E18	Queen's Indian	Old Main line, 7.Nc3
D4 NF6 C4 E6 NF3 B6 G3 BB7 BG2 BE7 O-O	E17	Queen's Indian	Old Main line, 6.O-O
D4 NF6 C4 E6 NF3 B6 G3 BB7 BG2 BE7	E17	Queen's Indian	5.Bg2 Be7
D4 NF6 C4 E6 NF3 B6 G3 BB7 BG2 C5 D5 EXD5 NG5	E15	Queen's Indian	Buerger Variation
D4 NF6 C4 E6 NF3 B6 G3 BB7 BG2 C5 D5 EXD5 NH4	E15	Queen's Indian	Rubinstein Variation
D4 NF6 C4 E6 NF3 B6 G3 BB7	E15	Queen's Indian	4.g3 Bb7
D4 NF6 C4 E6 NF3 B6 G3	E15	Queen's Indian	4.g3
D4 NF6 C4 E6 NF3 B6 NC3 BB7 BG5 H6 BH4 BB4	E13	Queen's Indian	4.Nc3, Main line
D4 NF6 C4 E6 NF3 B6 NC3 BB7 BG5 H6 BH4 G5 BG3 NH5	E12	Queen's Indian	4.Nc3, Botvinnik Variation
D4 NF6 C4 E6 NF3 B6 NC3	E12	Queen's Indian	4.Nc3
D4 NF6 C4 E6 NF3 B6	E12	Queen's Indian defense	Closed, Sokolsky Variation
D4 NF6 C4 E6 NF3 BB4	E11	Bogo-Indian defense	Closed, Sokolsky Variation
D4 NF6 C4 E6 NF3 BB4+ BD2 BXD2+ QXD2 B6 G3 BB7 BG2 O-O NC3 NE4 QC2 NXC3 NG5	E11	Bogo-Indian defense, Monticelli trap	Closed, Sokolsky Variation
D4 NF6 C4 E6 NF3 BB4+ BD2 QE7	E11	Bogo-Indian defense, Nimzovich Variation 	Closed, Sokolsky Variation
D4 NF6 C4 E6 NF3 BB4+ NBD2	E11	Bogo-Indian defense, Gruenfeld Variation 	Closed, Sokolsky Variation
D4 NF6 C4 E6 NF3 C5 D5 B5 BG5 EXD5 CXD5 H6	E10	Blumenfeld counter-gambit, Spielmann Variation 	Closed, Sokolsky Variation
D4 NF6 C4 E6 NF3 C5 D5 B5 BG5	E10	Blumenfeld counter-gambit, Dus-Chotimursky Variation 	Closed, Sokolsky Variation
D4 NF6 C4 E6 NF3 C5 D5 B5 DXE6 FXE6 CXB5 D5	E10	Blumenfeld counter-gambit accepted	Closed, Sokolsky Variation
D4 NF6 C4 E6 NF3 C5 D5 B5	E10	Blumenfeld counter-gambit	Closed, Sokolsky Variation
D4 NF6 C4 E6 NF3 NE4	E10	Doery defense	Closed, Sokolsky Variation
D4 NF6 C4 E6 NF3	E10	Queen's pawn game	Closed, Sokolsky Variation
D4 NF6 C4 E6	E00	Queen's pawn game	Smyslov, Yugoslav Variation
D4 NF6 C4 G6 D5 B5	E60	King's Indian	Danube gambit
D4 NF6 C4 G6 D5	E60	King's Indian	Anti-Gruenfeld
D4 NF6 C4 G6 F3 D5	D70	Neo-Gruenfeld defense	Orthodox defense, Classical, 13.de
D4 NF6 C4 G6 G3 BG7 BG2 D5	E60	King's Indian	3.g3, counterthrust Variation
D4 NF6 C4 G6 G3 D5 BG2 BG7 CXD5 NXD5 E4 NB6 NE2	D72	Neo-Gruenfeld, 5.cd, Main line	Orthodox defense, Classical, 13.de
D4 NF6 C4 G6 G3 D5 BG2 BG7 CXD5 NXD5	D71	Neo-Gruenfeld, 5.cd	Orthodox defense, Classical, 13.de
D4 NF6 C4 G6 G3 D5 BG2 BG7 NF3 O-O CXD5 NXD5 O-O C5 DXC5	D75	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc	Orthodox defense, Classical, 13.de
D4 NF6 C4 G6 G3 D5 BG2 BG7 NF3 O-O CXD5 NXD5 O-O C5 NC3	D75	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc3	Orthodox defense, Classical, 13.de
D4 NF6 C4 G6 G3 D5 BG2 BG7 NF3 O-O CXD5 NXD5 O-O NB6	D76	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6	Orthodox defense, Classical, 13.de
D4 NF6 C4 G6 G3 D5 BG2 BG7 NF3 O-O CXD5 NXD5 O-O	D74	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O	Orthodox defense, Classical, 13.de
D4 NF6 C4 G6 G3 D5 BG2 BG7 NF3 O-O O-O C6 CXD5 CXD5	D79	Neo-Gruenfeld, 6.O-O, Main line	Orthodox defense, Classical, 13.de
D4 NF6 C4 G6 G3 D5 BG2 BG7 NF3 O-O O-O C6	D78	Neo-Gruenfeld, 6.O-O c6	Orthodox defense, Classical, 13.de
D4 NF6 C4 G6 G3 D5 BG2 BG7 NF3 O-O O-O	D77	Neo-Gruenfeld, 6.O-O	Orthodox defense, Classical, 13.de
D4 NF6 C4 G6 G3 D5 BG2 BG7 NF3	D73	Neo-Gruenfeld, 5.Nf3	Orthodox defense, Classical, 13.de
D4 NF6 C4 G6 G3 D5	D70	Neo-Gruenfeld (Kemeri) defense	Orthodox defense, Classical, 13.de
D4 NF6 C4 G6 G3	E60	King's Indian	3.g3
D4 NF6 C4 G6 NC3 BG7 E4 D6 BE2 O-O BE3	E73	King's Indian	Semi-Averbakh system
D4 NF6 C4 G6 NC3 BG7 E4 D6 BE2 O-O BG5 C5 D5 E6	E75	King's Indian	Averbakh, Main line
D4 NF6 C4 G6 NC3 BG7 E4 D6 BE2 O-O BG5 C5	E74	King's Indian	Averbakh, 6...c5
D4 NF6 C4 G6 NC3 BG7 E4 D6 BE2 O-O BG5	E73	King's Indian	Averbakh system
D4 NF6 C4 G6 NC3 BG7 E4 D6 BE2	E73	King's Indian	5.Be2
D4 NF6 C4 G6 NC3 BG7 E4 D6 BG5	E70	King's Indian	Accelerated Averbakh system
D4 NF6 C4 G6 NC3 BG7 E4 D6 F3 O-O BE3 B6	E82	King's Indian	Saemisch, double Fianchetto Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 F3 O-O BE3 C6 BD3 A6	E81	King's Indian	Saemisch, Byrne Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 F3 O-O BE3 E5 D5 C6 NGE2 CXD5	E89	King's Indian	Saemisch, Orthodox Main line
D4 NF6 C4 G6 NC3 BG7 E4 D6 F3 O-O BE3 E5 D5 C6	E88	King's Indian	Saemisch, Orthodox, 7.d5 c6
D4 NF6 C4 G6 NC3 BG7 E4 D6 F3 O-O BE3 E5 D5 NH5 QD2 QH4+ G3 NXG3 QF2 NXF1 QXH4 NXE3 KE2 NXC4	E87	King's Indian	Saemisch, Orthodox, Bronstein Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 F3 O-O BE3 E5 D5	E87	King's Indian	Saemisch, Orthodox, 7.d5
D4 NF6 C4 G6 NC3 BG7 E4 D6 F3 O-O BE3 E5 NGE2 C6	E86	King's Indian	Saemisch, Orthodox, 7.Nge2 c6
D4 NF6 C4 G6 NC3 BG7 E4 D6 F3 O-O BE3 E5	E85	King's Indian	Saemisch, Orthodox Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 F3 O-O BE3 NC6 NGE2 A6 QD2 RB8	E84	King's Indian	Saemisch, Panno Main line
D4 NF6 C4 G6 NC3 BG7 E4 D6 F3 O-O BE3 NC6 NGE2 A6	E83	King's Indian	Saemisch, Panno formation
D4 NF6 C4 G6 NC3 BG7 E4 D6 F3 O-O BE3 NC6 NGE2 RB8	E83	King's Indian	Saemisch, Ruban Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 F3 O-O BE3 NC6	E83	King's Indian	Saemisch, 6...Nc6
D4 NF6 C4 G6 NC3 BG7 E4 D6 F3 O-O	E81	King's Indian	Saemisch, 5...O-O
D4 NF6 C4 G6 NC3 BG7 E4 D6 F3	E80	King's Indian	Saemisch Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 F4 O-O BE2 C5 D5 E6 DXE6 FXE6 G4 NC6 H4	E77	King's Indian	Six pawns attack
D4 NF6 C4 G6 NC3 BG7 E4 D6 F4 O-O BE2 C5 D5 E6 NF3 EXD5 E5	E77	King's Indian	Four pawns attack, Florentine gambit
D4 NF6 C4 G6 NC3 BG7 E4 D6 F4 O-O BE2 C5 D5 E6 NF3	E77	King's Indian	Four pawns attack
D4 NF6 C4 G6 NC3 BG7 E4 D6 F4 O-O BE2 C5 NF3 CXD4 NXD4 NC6 BE3	E79	King's Indian	Four pawns attack, Main line
D4 NF6 C4 G6 NC3 BG7 E4 D6 F4 O-O BE2 C5 NF3	E78	King's Indian	Four pawns attack, with Be2 and Nf3
D4 NF6 C4 G6 NC3 BG7 E4 D6 F4 O-O BE2	E77	King's Indian	Four pawns attack, 6.Be2
D4 NF6 C4 G6 NC3 BG7 E4 D6 F4 O-O NF3 C5 D5	E76	King's Indian	Four pawns attack, dynamic line
D4 NF6 C4 G6 NC3 BG7 E4 D6 F4	E76	King's Indian	Four pawns attack
D4 NF6 C4 G6 NC3 BG7 E4 D6 G3 O-O BG2 E5 NGE2	E72	King's Indian	Pomar system
D4 NF6 C4 G6 NC3 BG7 E4 D6 G3	E72	King's Indian with e4 & g3	Makagonov system (5.h3)
D4 NF6 C4 G6 NC3 BG7 E4 D6 H3	E71	King's Indian	Makagonov system (5.h3)
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 BE3	E92	King's Indian	Gligoric-Taimanov system
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 D5 A5	E92	King's Indian	Petrosian system, Stein Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 D5 NBD7 BG5 H6 BH4 G5 BG3 NH5 H4	E93	King's Indian	Petrosian system, Keres Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 D5 NBD7	E93	King's Indian	Petrosian system, Main line
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 D5	E92	King's Indian	Petrosian system
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 DXE5	E92	King's Indian	Andersson Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 O-O C6	E94	King's Indian	Orthodox, Donner Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 O-O NBD7 RE1 C6 BF1 A5	E96	King's Indian	Orthodox, 7...Nbd7, Main line
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 O-O NBD7 RE1	E95	King's Indian	Orthodox, 7...Nbd7, 8.Re1
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 O-O NBD7	E94	King's Indian	Orthodox, 7...Nbd7
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 O-O NC6 D5 NE7 B4	E97	King's Indian	Orthodox, Aronin-Taimanov, bayonet attack
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 O-O NC6 D5 NE7 NE1 ND7 F3 F5	E99	King's Indian	Orthodox, Aronin-Taimanov, Main line
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 O-O NC6 D5 NE7 NE1	E98	King's Indian	Orthodox, Aronin-Taimanov, 9.Ne1
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 O-O NC6	E97	King's Indian	Orthodox, Aronin-Taimanov Variation (Yugoslav attack / Mar del Plata Variation )
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5 O-O	E94	King's Indian	Orthodox Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 E5	E92	King's Indian	Classical Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2 NA6	E91	King's Indian	Kazakh Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE2	E91	King's Indian	6.Be2
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BE3	E90	King's Indian	Larsen Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3 O-O BG5	E90	King's Indian	Zinnowitz Variation
D4 NF6 C4 G6 NC3 BG7 E4 D6 NF3	E90	King's Indian	5.Nf3
D4 NF6 C4 G6 NC3 BG7 E4 D6 NGE2	E70	King's Indian	Kramer system
D4 NF6 C4 G6 NC3 BG7 E4	E70	King's Indian	4.e4
D4 NF6 C4 G6 NC3 BG7 NF3 D6 BG5	E61	King's Indian	Smyslov system
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3 O-O BG2 C5 O-O NC6 D5	E66	King's Indian	Fianchetto, Yugoslav Panno
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3 O-O BG2 C5 O-O	E65	King's Indian	Fianchetto, Yugoslav, 7.O-O
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3 O-O BG2 C5	E64	King's Indian	Fianchetto, Yugoslav system
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3 O-O BG2 C6 O-O BF5	E62	King's Indian	Fianchetto, Larsen system
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3 O-O BG2 C6 O-O QA5	E62	King's Indian	Fianchetto, Kavalek (Bronstein) Variation
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3 O-O BG2 NBD7 O-O E5 E4 C6 H3	E69	King's Indian	Fianchetto, Classical Main line
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3 O-O BG2 NBD7 O-O E5 E4	E68	King's Indian	Fianchetto, Classical Variation , 8.e4
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3 O-O BG2 NBD7 O-O E5	E67	King's Indian	Fianchetto, Classical Variation
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3 O-O BG2 NBD7	E67	King's Indian	Fianchetto with ...Nd7
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3 O-O BG2 NC6 O-O A6	E63	King's Indian	Fianchetto, Panno Variation
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3 O-O BG2 NC6 O-O BF5	E62	King's Indian	Fianchetto, lesser Simagin (Spassky) Variation
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3 O-O BG2 NC6 O-O BG4	E62	King's Indian	Fianchetto, Simagin Variation
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3 O-O BG2 NC6 O-O E5	E62	King's Indian	Fianchetto, Uhlmann (Szabo) Variation
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3 O-O BG2 NC6	E62	King's Indian	Fianchetto with ...Nc6
D4 NF6 C4 G6 NC3 BG7 NF3 D6 G3	E62	King's Indian	Fianchetto Variation
D4 NF6 C4 G6 NC3 D5 BF4 BG7 E3 O-O CXD5 NXD5 NXD5 QXD5 BXC7	D84	Gruenfeld	Gruenfeld gambit accepted
D4 NF6 C4 G6 NC3 D5 BF4 BG7 E3 O-O RC1 C5 DXC5 BE6	D83	Gruenfeld	Gruenfeld gambit, Botvinnik Variation
D4 NF6 C4 G6 NC3 D5 BF4 BG7 E3 O-O RC1	D83	Gruenfeld	Gruenfeld gambit, Capablanca Variation
D4 NF6 C4 G6 NC3 D5 BF4 BG7 E3 O-O	D83	Gruenfeld	Gruenfeld gambit
D4 NF6 C4 G6 NC3 D5 BF4	D82	Gruenfeld	4.Bf4
D4 NF6 C4 G6 NC3 D5 BG5 NE4 NXE4 DXE4 QD2 C5	D80	Gruenfeld	Lundin Variation
D4 NF6 C4 G6 NC3 D5 BG5	D80	Gruenfeld	Stockholm Variation
D4 NF6 C4 G6 NC3 D5 CXD5 NXD5 E4 NXC3 BXC3 BG7 BC4 O-O NE2 B6	D86	Gruenfeld	Exchange, Simagin's lesser Variation
D4 NF6 C4 G6 NC3 D5 CXD5 NXD5 E4 NXC3 BXC3 BG7 BC4 O-O NE2 C5 O-O NC6 BE3 BG4 F3 NA5 BXF7	D87	Gruenfeld	Exchange, Seville Variation
D4 NF6 C4 G6 NC3 D5 CXD5 NXD5 E4 NXC3 BXC3 BG7 BC4 O-O NE2 C5 O-O NC6 BE3 CXD4 CXD4	D88	Gruenfeld	Spassky Variation , Main line, 10...cd, 11.cd
D4 NF6 C4 G6 NC3 D5 CXD5 NXD5 E4 NXC3 BXC3 BG7 BC4 O-O NE2 C5 O-O NC6 BE3 CXD4 CXD4 BG4 F3 NA5 BD3 BE6	D89	Gruenfeld	Spassky Variation , Main line, 13.Bd3
D4 NF6 C4 G6 NC3 D5 CXD5 NXD5 E4 NXC3 BXC3 BG7 BC4 O-O NE2 C5 O-O NC6 BE3 CXD4 CXD4 BG4 F3 NA5 BD3 BE6 D5	D89	Gruenfeld	Exchange, Sokolsky Variation
D4 NF6 C4 G6 NC3 D5 CXD5 NXD5 E4 NXC3 BXC3 BG7 BC4 O-O NE2 C5	D87	Gruenfeld	Exchange, Spassky Variation
D4 NF6 C4 G6 NC3 D5 CXD5 NXD5 E4 NXC3 BXC3 BG7 BC4 O-O NE2 NC6	D86	Gruenfeld	Exchange, Simagin's improved Variation
D4 NF6 C4 G6 NC3 D5 CXD5 NXD5 E4 NXC3 BXC3 BG7 BC4 O-O NE2 QD7 O-O B6	D86	Gruenfeld	Exchange, Larsen Variation
D4 NF6 C4 G6 NC3 D5 CXD5 NXD5 E4 NXC3 BXC3 BG7 BC4	D86	Gruenfeld	Exchange, Classical Variation
D4 NF6 C4 G6 NC3 D5 CXD5 NXD5 E4 NXC3 BXC3 BG7 NF3	D85	Gruenfeld	Modern Exchange Variation
D4 NF6 C4 G6 NC3 D5 CXD5 NXD5	D85	Gruenfeld	Exchange Variation
D4 NF6 C4 G6 NC3 D5 G4	D80	Gruenfeld	Spike gambit
D4 NF6 C4 G6 NC3 D5 NF3 BG7 BF4 O-O E3	D93	Gruenfeld with Bf4    e3	5.Bf4
D4 NF6 C4 G6 NC3 D5 NF3 BG7 BF4	D92	Gruenfeld	5.Bf4
D4 NF6 C4 G6 NC3 D5 NF3 BG7 BG5	D91	Gruenfeld	5.Bg5
D4 NF6 C4 G6 NC3 D5 NF3 BG7 E3 O-O B4	D94	Gruenfeld	Makogonov Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7 E3 O-O BD2	D94	Gruenfeld	Opovcensky Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7 E3 O-O BD3 C6 O-O BF5	D94	Gruenfeld	Flohr defense
D4 NF6 C4 G6 NC3 D5 NF3 BG7 E3 O-O BD3 C6 O-O BG4	D94	Gruenfeld	Smyslov defense
D4 NF6 C4 G6 NC3 D5 NF3 BG7 E3 O-O BD3	D94	Gruenfeld with e3    Bd3	Opovcensky Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7 E3 O-O QB3 DXC4 BXC4 NBD7 NG5	D95	Gruenfeld	Pachman Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7 E3 O-O QB3 E6	D95	Gruenfeld	Botvinnik Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7 E3 O-O QB3	D95	Gruenfeld with e3 & Qb3	Flohr defense
D4 NF6 C4 G6 NC3 D5 NF3 BG7 E3	D94	Gruenfeld	5.e3
D4 NF6 C4 G6 NC3 D5 NF3 BG7 QA4	D90	Gruenfeld	Flohr Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7 QB3 DXC4 QXC4 O-O E4 A6	D97	Gruenfeld	Russian, Alekhine (Hungarian) Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7 QB3 DXC4 QXC4 O-O E4 B6	D97	Gruenfeld	Russian, Levenfish Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7 QB3 DXC4 QXC4 O-O E4 BG4 BE3 NFD7 BE2 NB6 QD3 NC6 O-O-O	D98	Gruenfeld	Russian, Keres Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7 QB3 DXC4 QXC4 O-O E4 BG4 BE3 NFD7 QB3	D99	Gruenfeld defense	Smyslov, Main line
D4 NF6 C4 G6 NC3 D5 NF3 BG7 QB3 DXC4 QXC4 O-O E4 BG4 BE3 NFD7 QB3 C5	D99	Gruenfeld defense	Smyslov, Yugoslav Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7 QB3 DXC4 QXC4 O-O E4 BG4	D98	Gruenfeld	Russian, Smyslov Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7 QB3 DXC4 QXC4 O-O E4 C6	D97	Gruenfeld	Russian, Szabo (Boleslavsky) Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7 QB3 DXC4 QXC4 O-O E4 NA6	D97	Gruenfeld	Russian, Prins Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7 QB3 DXC4 QXC4 O-O E4 NC6	D97	Gruenfeld	Russian, Byrne (Simagin) Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7 QB3 DXC4 QXC4 O-O E4	D97	Gruenfeld	Russian Variation with e4
D4 NF6 C4 G6 NC3 D5 NF3 BG7 QB3	D96	Gruenfeld	Russian Variation
D4 NF6 C4 G6 NC3 D5 NF3 BG7	D90	Gruenfeld	Three knights Variation
D4 NF6 C4 G6 NC3 D5 NF3 C6	D90	Gruenfeld	Schlechter Variation
D4 NF6 C4 G6 NC3 D5 NF3	D90	Gruenfeld	Three knights Variation
D4 NF6 C4 G6 NC3 D5 QB3	D81	Gruenfeld	Russian Variation
D4 NF6 C4 G6 NC3 D5	D80	Gruenfeld defense	Orthodox defense, Classical, 13.de
D4 NF6 C4 G6 NC3	E61	King's Indian defense, 3.Nc3	3.g3, counterthrust Variation
D4 NF6 C4 G6 NF3	E60	King's Indian, 3.Nf3	4.e3, Main line
D4 NF6 C4 G6 QC2	E60	Queen's pawn	Mengarini attack
D4 NF6 C4 G6	E60	King's Indian defense	4.e3, Main line
D4 NF6 C4 NC6	A50	Kevitz-Trajkovich defense	Fianchetto without c4
D4 NF6 C4	A50	Queen's pawn game	Fianchetto without c4
D4 NF6 F3 D5 E4	A45	Blackmar-Diemer gambit	Bronstein gambit
D4 NF6 F3 D5 G4	A45	Gedult attack	Bronstein gambit
D4 NF6 F3	A45	Paleface attack	Bronstein gambit
D4 NF6 F4	A45	Canard Opening	Bronstein gambit
D4 NF6 G4	A45	Queen's pawn	Bronstein gambit
D4 NF6 NF3 B6 G3 BB7 BG2 C5 C4 CXD4 QXD4	A47	Queen's Indian	Marienbad system, Berg Variation
D4 NF6 NF3 B6 G3 BB7 BG2 C5	A47	Queen's Indian	Marienbad system
D4 NF6 NF3 B6	A47	Queen's Indian defense	Yusupov-Rubinstein system
D4 NF6 NF3 E6 BG5 C5 E4	A46	Queen's pawn	Torre attack, Wagner gambit
D4 NF6 NF3 E6 BG5	A46	Queen's pawn	Torre attack
D4 NF6 NF3 E6 E3	A46	Queen's pawn	Yusupov-Rubinstein system
D4 NF6 NF3 G6 BF4	A48	King's Indian	London system
D4 NF6 NF3 G6 BG5	A48	King's Indian	Torre attack
D4 NF6 NF3 G6 G3	A49	King's Indian	Fianchetto without c4
D4 NF6 NF3 G6	A48	King's Indian	East Indian defense
D4 NF6 NF3 NE4	A46	Doery defense	Yusupov-Rubinstein system
D4 NF6 NF3	A46	Queen's pawn game	Bronstein gambit
D4 NF6	A45	Queen's pawn game	Schmid's system
D4	A40	Queen's pawn	Symmetrical, Main line with d4
E3 E5 C4 D6 NC3 NC6 B3 NF6	A00	Amsterdam attack	Romford counter-gambit
E3	A00	Van't Kruijs Opening	Romford counter-gambit
E4 A5	B00	Corn stalk defense	Ilyin-Genevsky Variation with b3
E4 A6	B00	St. George (Baker) defense	Ilyin-Genevsky Variation with b3
E4 B6 D4 BA6	B00	Guatemala defense	Ilyin-Genevsky Variation with b3
E4 B6	B00	Owen defense	Ilyin-Genevsky Variation with b3
E4 C5 B4 CXB4 A3 BXA3	B20	Sicilian	wing gambit, Carlsbad Variation
E4 C5 B4 CXB4 A3 D5 EXD5 QXD5 BB2	B20	Sicilian	wing gambit, Marienbad Variation
E4 C5 B4 CXB4 A3	B20	Sicilian	wing gambit, Marshall Variation
E4 C5 B4 CXB4 C4	B20	Sicilian	wing gambit, Santasiere Variation
E4 C5 B4	B20	Sicilian	wing gambit
E4 C5 C3 NF6 E5 ND5 NF3 NC6 NA3	B22	Sicilian	2.c3, Heidenfeld Variation
E4 C5 C3	B22	Sicilian	Alapin's Variation (2.c3)
E4 C5 C4 D6 NC3 NC6 G3 H5	B20	Sicilian	Gloria Variation
E4 C5 D4 CXD4 C3 DXC3 NXC3 NC6 NF3 D6 BC4 E6 O-O A6 QE2 B5 BB3 RA7	B21	Sicilian	Smith-Morra gambit, Chicago defense
E4 C5 D4 CXD4 C3	B21	Sicilian	Smith-Morra gambit
E4 C5 D4 CXD4 NF3 E5 C3	B21	Sicilian	Andreaschek gambit
E4 C5 D4	B21	Sicilian	Smith-Morra gambit
E4 C5 F4	B21	Sicilian	Grand Prix attack
E4 C5 G3	B20	Sicilian	Steinitz Variation
E4 C5 NC3 E6 G3 D5	B23	Sicilian	Closed, Korchnoi Variation
E4 C5 NC3 NC6 F4 G6 NF3 BG7 BC4 E6 F5	B23	Sicilian	Grand Prix attack, Schofman Variation
E4 C5 NC3 NC6 F4	B23	Sicilian	Grand Prix attack
E4 C5 NC3 NC6 G3 G6 BG2 BG7 D3 D6 BE3	B26	Sicilian	Closed, 6.Be3
E4 C5 NC3 NC6 G3 G6 BG2 BG7 D3 D6 F4 E5	B25	Sicilian	Closed, 6.f4 e5 (Botvinnik)
E4 C5 NC3 NC6 G3 G6 BG2 BG7 D3 D6 F4	B25	Sicilian	Closed, 6.f4
E4 C5 NC3 NC6 G3 G6 BG2 BG7 D3 D6 NGE2 E5	B25	Sicilian	Closed, 6.Ne2 e5 (Botvinnik)
E4 C5 NC3 NC6 G3 G6 BG2 BG7 D3 D6	B25	Sicilian	Closed
E4 C5 NC3 NC6 G3 G6 BG2 BG7 D3 E6 BE3 ND4 NCE2	B24	Sicilian	Closed, Smyslov Variation
E4 C5 NC3 NC6 G3	B24	Sicilian	Closed
E4 C5 NC3 NC6 NGE2	B23	Sicilian	chameleon Variation
E4 C5 NC3 NC6	B23	Sicilian	Closed, 2...Nc6
E4 C5 NC3	B23	Sicilian	Closed
E4 C5 NE2	B20	Sicilian	Keres Variation (2.Ne2)
E4 C5 NF3 A6	B28	Sicilian	O'Kelly Variation
E4 C5 NF3 B6	B27	Sicilian	Katalimov Variation
E4 C5 NF3 D6 B4	B50	Sicilian	wing gambit deferred
E4 C5 NF3 D6 BB5	B51	Sicilian	Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack
E4 C5 NF3 D6 BB5+ BD7 BXD7+ QXD7 C4	B52	Sicilian	Canal-Sokolsky attack, Sokolsky Variation
E4 C5 NF3 D6 BB5+ BD7 BXD7+ QXD7 O-O NC6 C3 NF6 D4	B52	Sicilian	Canal-Sokolsky attack, Bronstein gambit
E4 C5 NF3 D6 BB5+ BD7	B52	Sicilian	Canal-Sokolsky attack, 3...Bd7
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 F3 E5 BB5	B55	Sicilian	Prins Variation , Venice attack
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 F3	B54	Sicilian	Prins (Moscow) Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BC4	B90	Sicilian	Najdorf, Lipnitzky attack
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BE2	B92	Sicilian	Najdorf, Opovcensky Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BE3	B90	Sicilian	Najdorf, Byrne (English) attack
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BG5 E6 F4 B5 E5 DXE5 FXE5 QC7 QE2	B96	Sicilian	Najdorf, Polugayevsky, Simagin Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BG5 E6 F4 B5	B96	Sicilian	Najdorf, Polugayevsky Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BG5 E6 F4 BE7 QF3 H6 BH4 G5	B98	Sicilian	Najdorf, Goteborg (Argentine) Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BG5 E6 F4 BE7 QF3 H6 BH4 QC7	B98	Sicilian	Najdorf, Browne Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BG5 E6 F4 BE7 QF3 QC7 O-O-O NBD7	B99	Sicilian	Najdorf, 7...Be7 Main line
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BG5 E6 F4 BE7 QF3 QC7	B98	Sicilian	Najdorf Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BG5 E6 F4 BE7	B98	Sicilian	Najdorf, 7...Be7
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BG5 E6 F4 QB6 QD2 QXB2 RB1 QA3	B97	Sicilian	Najdorf, Poisoned pawn Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BG5 E6 F4 QB6	B97	Sicilian	Najdorf, 7...Qb6
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BG5 E6 F4	B96	Sicilian	Najdorf, 7.f4
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BG5 E6	B95	Sicilian	Najdorf, 6...e6
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BG5 NBD7 BC4 QA5 QD2 E6 O-O-O B5 BB3 BB7 RHE1 NC5 E5	B94	Sicilian	Najdorf, Ivkov Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 BG5	B94	Sicilian	Najdorf, 6.Bg5
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 F4	B93	Sicilian	Najdorf, 6.f4
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 G3	B91	Sicilian	Najdorf, Zagreb (Fianchetto) Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6 H3	B90	Sicilian	Najdorf, Adams attack
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 A6	B90	Sicilian	Najdorf
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E5 BB5	B56	Sicilian	Venice attack
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BB5	B80	Sicilian	Scheveningen, Vitolins Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BC4 A6 BB3 B5	B87	Sicilian	Sozin with ...a6 and ...b5
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BC4 NC6 BB3 BE7 BE3 O-O F4	B88	Sicilian	Sozin, Fischer Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BC4 NC6 BE3 BE7 QE2	B89	Sicilian	Velimirovic attack
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BC4 NC6 BE3	B89	Sicilian	Sozin, 7.Be3
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BC4 NC6	B88	Sicilian	Sozin, Leonhardt Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BC4	B86	Sicilian	Sozin attack
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BE2 A6 O-O NBD7	B84	Sicilian	Scheveningen, Classical, Nd7 system
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BE2 A6 O-O QC7 F4 NC6 BE3 BE7 QE1 O-O	B85	Sicilian	Scheveningen, Classical Main line
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BE2 A6 O-O QC7 F4 NC6 BE3	B85	Sicilian	Scheveningen, Classical
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BE2 A6 O-O QC7 F4 NC6 KH1 BE7 A4	B85	Sicilian	Scheveningen, Classical, Maroczy system
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BE2 A6 O-O QC7 F4 NC6	B85	Sicilian	Scheveningen, Classical Variation with ...Qc7 and ...Nc6
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BE2 A6 O-O QC7	B84	Sicilian	Scheveningen (Paulsen), Classical Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BE2 A6	B84	Sicilian	Scheveningen (Paulsen), Classical Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BE2 NC6 O-O BE7 BE3 O-O F4 BD7 NB3	B83	Sicilian	Modern Scheveningen, Main line with Nb3
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BE2 NC6 O-O BE7 BE3 O-O F4	B83	Sicilian	Modern Scheveningen, Main line
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BE2 NC6	B83	Sicilian	Modern Scheveningen
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BE2	B83	Sicilian	Scheveningen, 6.Be2
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 BE3 A6 QD2	B80	Sicilian	Scheveningen, English Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 F4 NC6 BE3 BE7 QF3	B82	Sicilian	Scheveningen, Tal Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 F4	B82	Sicilian	Scheveningen, 6.f4
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 G3	B80	Sicilian	Scheveningen, Fianchetto Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6 G4	B81	Sicilian	Scheveningen, Keres attack
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 E6	B80	Sicilian	Scheveningen Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 BE2 NC6 NB3	B72	Sicilian	Dragon, Classical, Nottingham Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 BE2 NC6 O-O O-O F4 QB6 E5	B73	Sicilian	Dragon, Classical, Zollner gambit
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 BE2 NC6 O-O O-O NB3	B74	Sicilian	Dragon, Classical, 9.Nb3
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 BE2 NC6 O-O O-O NB3 BE6 F4 NA5 F5 BC4 NXA5 BXE2 QXE2 QXA5 G4	B74	Sicilian	Dragon, Classical, Stockholm attack
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 BE2 NC6 O-O O-O NB3 BE6 F4 NA5 F5 BC4 BD3	B74	Sicilian	Dragon, Classical, Spielmann Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 BE2 NC6 O-O O-O NB3 BE6 F4 NA5 F5 BC4 BD3 BXD3 CXD3 D5	B74	Sicilian	Dragon, Classical, Bernard defense
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 BE2 NC6 O-O O-O NB3 BE6 F4 QC8	B74	Sicilian	Dragon, Classical, Reti-Tartakower Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 BE2 NC6 O-O O-O NB3 A5	B74	Sicilian	Dragon, Classical, Alekhine Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 BE2 NC6 O-O O-O QD2	B73	Sicilian	Dragon, Classical, Richter Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 BE2 NC6 O-O	B73	Sicilian	Dragon, Classical, 8.O-O
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 BE2 NC6 QD2 O-O O-O-O	B72	Sicilian	Dragon, Classical, Grigoriev Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 BE2 NC6 QD2	B72	Sicilian	Dragon, Classical, Amsterdam Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 BE2	B72	Sicilian	Dragon, Classical attack
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 F3 O-O QD2 NC6 BC4 A5	B77	Sicilian	Dragon, Yugoslav attack, Byrne Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 F3 O-O QD2 NC6 BC4 BD7	B77	Sicilian	Dragon, Yugoslav attack, 9...Bd7
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 F3 O-O QD2 NC6 BC4 BD7 O-O-O	B78	Sicilian	Dragon, Yugoslav attack, 10.O-O-O
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 F3 O-O QD2 NC6 BC4 BD7 O-O-O QA5 BB3 RFC8 H4	B79	Sicilian	Dragon, Yugoslav attack, 12.h4
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 F3 O-O QD2 NC6 BC4	B77	Sicilian	Dragon, Yugoslav attack, 9.Bc4
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 F3 O-O QD2 NC6 O-O-O	B76	Sicilian	Dragon, Yugoslav attack, Rauser Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 F3 O-O	B76	Sicilian	Dragon, Yugoslav attack, 7...O-O
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3 BG7 F3	B75	Sicilian	Dragon, Yugoslav attack
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 BE3	B72	Sicilian	Dragon, 6.Be3
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 F4 NBD7	B71	Sicilian	Dragon, Levenfish; Flohr Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6 F4	B71	Sicilian	Dragon, Levenfish Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 G6	B70	Sicilian	Dragon Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BC4 G6 NXC6 BXC6 E5	B57	Sicilian	Magnus Smith trap
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BC4 QB6	B57	Sicilian	Sozin, Benko Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BC4	B57	Sicilian	Sozin, not Scheveningen
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 BD7 QD2	B61	Sicilian	Richter-Rauzer, Larsen Variation , 7.Qd2
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 BD7	B60	Sicilian	Richter-Rauzer, Larsen Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6 BB5	B62	Sicilian	Richter-Rauzer, Margate (Alekhine) Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6 NB3	B62	Sicilian	Richter-Rauzer, Podvebrady Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6 NXC6	B62	Sicilian	Richter-Rauzer, Richter attack
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6 QD2 A6 O-O-O BD7 F4 BE7	B68	Sicilian	Richter-Rauzer, Rauzer attack, 7...a6 defense, 9...Be7
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6 QD2 A6 O-O-O BD7 F4 BE7 NF3 B5 BXF6	B69	Sicilian	Richter-Rauzer, Rauzer attack, 7...a6 defense, 11.Bxf6
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6 QD2 A6 O-O-O BD7	B67	Sicilian	Richter-Rauzer, Rauzer attack, 7...a6 defense, 8...Bd7
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6 QD2 A6	B66	Sicilian	Richter-Rauzer, Rauzer attack, 7...a6
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6 QD2 BE7 O-O-O O-O F4	B64	Sicilian	Richter-Rauzer, Rauzer attack, 7...Be7 defense, 9.f4
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6 QD2 BE7 O-O-O O-O F4 E5	B64	Sicilian	Richter-Rauzer, Rauzer attack, Geller Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6 QD2 BE7 O-O-O O-O F4 NXD4	B65	Sicilian	Richter-Rauzer, Rauzer attack, 7...Be7 defense, 9...Nxd4
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6 QD2 BE7 O-O-O O-O F4 NXD4 QXD4	B65	Sicilian	Richter-Rauzer, Rauzer attack, 7...Be7 defense, 9...Nxd4
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6 QD2 BE7	B63	Sicilian	Richter-Rauzer, Rauzer attack, 7...Be7
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6 QD2	B63	Sicilian	Richter-Rauzer, Rauzer attack
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6 QD3	B62	Sicilian	Richter-Rauzer, Keres Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 E6	B62	Sicilian	Richter-Rauzer, 6...e6
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5 G6	B60	Sicilian	Richter-Rauzer, Bondarevsky Variation
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6 BG5	B60	Sicilian	Richter-Rauzer
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3 NC6	B56	Sicilian	Venice attack
E4 C5 NF3 D6 D4 CXD4 NXD4 NF6 NC3	B56	Sicilian	Prins Variation , Venice attack
E4 C5 NF3 D6 D4 CXD4 NXD4	B54	Sicilian	Chekhover, Zaitsev Variation
E4 C5 NF3 D6 D4 CXD4 QXD4 NC6 BB5 QD7	B53	Sicilian	Chekhover, Zaitsev Variation
E4 C5 NF3 D6 D4 CXD4 QXD4	B53	Sicilian, Chekhover Variation 	Canal-Sokolsky attack, Sokolsky Variation
E4 C5 NF3 D6	B50	Sicilian	Taimanov Variation
E4 C5 NF3 E6 D4 CXD4 NXD4 A6 BD3 BC5	B42	Sicilian	Kan, Polugaievsky Variation
E4 C5 NF3 E6 D4 CXD4 NXD4 A6 BD3 G6	B42	Sicilian	Kan, Swiss cheese Variation
E4 C5 NF3 E6 D4 CXD4 NXD4 A6 BD3 NF6 O-O D6 C4 G6	B42	Sicilian	Kan, Gipslis Variation
E4 C5 NF3 E6 D4 CXD4 NXD4 A6 BD3	B42	Sicilian	Kan, 5.Bd3
E4 C5 NF3 E6 D4 CXD4 NXD4 A6 C4 NF6 NC3 BB4 BD3 NC6 BC2	B41	Sicilian	Kan, Maroczy bind - Bronstein Variation
E4 C5 NF3 E6 D4 CXD4 NXD4 A6 C4	B41	Sicilian	Kan, Maroczy bind (Reti Variation )
E4 C5 NF3 E6 D4 CXD4 NXD4 A6 NC3	B43	Sicilian	Kan, 5.Nc3
E4 C5 NF3 E6 D4 CXD4 NXD4 A6	B41	Sicilian	Kan Variation
E4 C5 NF3 E6 D4 CXD4 NXD4 NC6 NB5 D6 C4 NF6 N1C3 A6 NA3 BE7 BE2 O-O O-O B6	B44	Sicilian, Szen, hedgehog Variation 	Kan, 5.Nc3
E4 C5 NF3 E6 D4 CXD4 NXD4 NC6 NB5 D6 C4 NF6 N1C3 A6 NA3 D5	B44	Sicilian, Szen Variation , Dely-Kasparov gambit	Kan, 5.Nc3
E4 C5 NF3 E6 D4 CXD4 NXD4 NC6 NB5	B44	Sicilian, Szen (`anti-Taimanov') Variation 	Kan, 5.Nc3
E4 C5 NF3 E6 D4 CXD4 NXD4 NC6 NC3 A6	B46	Sicilian	Taimanov Variation
E4 C5 NF3 E6 D4 CXD4 NXD4 NC6 NC3 NF6 NDB5 BB4 ND6	B45	Sicilian	Taimanov, American attack
E4 C5 NF3 E6 D4 CXD4 NXD4 NC6 NC3 QC7 BE3 A6 BE2	B49	Sicilian	Taimanov Variation
E4 C5 NF3 E6 D4 CXD4 NXD4 NC6 NC3 QC7 BE3	B48	Sicilian	Taimanov Variation
E4 C5 NF3 E6 D4 CXD4 NXD4 NC6 NC3 QC7	B47	Sicilian	Taimanov (Bastrikov) Variation
E4 C5 NF3 E6 D4 CXD4 NXD4 NC6 NC3	B45	Sicilian	Taimanov Variation
E4 C5 NF3 E6 D4 CXD4 NXD4 NC6	B44	Sicilian defense	Kan, 5.Nc3
E4 C5 NF3 E6 D4 CXD4 NXD4 NF6 NC3 BB4 BD3 E5	B40	Sicilian	Pin, Jaffe Variation
E4 C5 NF3 E6 D4 CXD4 NXD4 NF6 NC3 BB4 E5	B40	Sicilian	Pin, Koch Variation
E4 C5 NF3 E6 D4 CXD4 NXD4 NF6 NC3 BB4	B40	Sicilian	Pin Variation (Sicilian counter-attack)
E4 C5 NF3 E6 D4 CXD4 NXD4 NF6	B40	Sicilian	Anderssen Variation
E4 C5 NF3 E6 D4 CXD4	B40	Sicilian defense	Marshall Variation
E4 C5 NF3 E6 D4 D5	B40	Sicilian	Marshall Variation
E4 C5 NF3 E6	B40	Sicilian defense	Accelerated Fianchetto, Breyer Variation
E4 C5 NF3 G6 C4 BH6	B27	Sicilian	Acton extension
E4 C5 NF3 G6	B27	Sicilian	Hungarian Variation
E4 C5 NF3 NC6 BB5 G6 O-O BG7 RE1 E5 B4	B31	Sicilian	Nimzovich-Rossolimo attack, Gurgenidze Variation
E4 C5 NF3 NC6 BB5 G6	B31	Sicilian	Nimzovich-Rossolimo attack (with ...g6, without ...d6)
E4 C5 NF3 NC6 BB5	B30	Sicilian	Nimzovich-Rossolimo attack (without ...d6)
E4 C5 NF3 NC6 D4 CXD4 NXD4 D5	B32	Sicilian	Nimzovich Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 E5 NB5 D6	B32	Sicilian	Labourdonnais-Loewenthal (Kalashnikov) Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 E5	B32	Sicilian	Labourdonnais-Loewenthal Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 G6 C4 BG7 BE3 NF6 NC3 NG4	B39	Sicilian	Accelerated Fianchetto, Breyer Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 G6 C4 BG7 BE3	B38	Sicilian	Accelerated Fianchetto, Maroczy bind, 6.Be3
E4 C5 NF3 NC6 D4 CXD4 NXD4 G6 C4 BG7 NC2 D6 BE2 NH6	B37	Sicilian	Accelerated Fianchetto, Simagin Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 G6 C4 BG7	B37	Sicilian	Accelerated Fianchetto, Maroczy bind, 5...Bg7
E4 C5 NF3 NC6 D4 CXD4 NXD4 G6 C4 NF6 NC3 NXD4 QXD4 D6	B36	Sicilian	Accelerated Fianchetto, Gurgenidze Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 G6 C4	B36	Sicilian	Accelerated Fianchetto, Maroczy bind
E4 C5 NF3 NC6 D4 CXD4 NXD4 G6 NC3 BG7 BE3 NF6 BC4	B35	Sicilian	Accelerated Fianchetto, Modern Variation with Bc4
E4 C5 NF3 NC6 D4 CXD4 NXD4 G6 NC3	B34	Sicilian	Accelerated Fianchetto, Modern Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 G6 NXC6	B34	Sicilian	Accelerated Fianchetto, Exchange Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 NF6 NC3 D6 BE2 E5 NB3	B59	Sicilian	Boleslavsky Variation , 7.Nb3
E4 C5 NF3 NC6 D4 CXD4 NXD4 NF6 NC3 D6 BE2 E5 NXC6	B58	Sicilian	Boleslavsky, Louma Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 NF6 NC3 D6 BE2 E5	B58	Sicilian	Boleslavsky Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 NF6 NC3 D6 BE2	B58	Sicilian	Classical
E4 C5 NF3 NC6 D4 CXD4 NXD4 NF6 NC3 E5 NDB5 D6 BG5 A6 NA3 B5 BXF6 GXF6 ND5 F5	B33	Sicilian	Sveshnikov Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 NF6 NC3 E5 NDB5 D6 BG5 A6 NA3 B5	B33	Sicilian	Pelikan, Chelyabinsk Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 NF6 NC3 E5 NDB5 D6 BG5 A6 NA3 BE6	B33	Sicilian	Pelikan, Bird Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 NF6 NC3 E5	B33	Sicilian	Pelikan (Lasker/Sveshnikov) Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 NF6	B33	Sicilian defense	Labourdonnais-Loewenthal (Kalashnikov) Variation
E4 C5 NF3 NC6 D4 CXD4 NXD4 QC7	B32	Sicilian	Flohr Variation
E4 C5 NF3 NC6 D4	B32	Sicilian defense	Nimzovich-Rossolimo attack, Gurgenidze Variation
E4 C5 NF3 NC6	B30	Sicilian defense	Nimzovich-Rubinstein; Rubinstein counter-gambit
E4 C5 NF3 NF6 E5 ND5 NC3 E6 NXD5 EXD5 D4 NC6	B29	Sicilian	Nimzovich-Rubinstein; Rubinstein counter-gambit
E4 C5 NF3 NF6	B29	Sicilian	Nimzovich-Rubinstein Variation
E4 C5 NF3 QA5	B27	Sicilian	Stiletto (Althouse) Variation
E4 C5 NF3 QC7	B27	Sicilian	Quinteros Variation
E4 C5 NF3	B27	Sicilian defense	Closed, 6.Be3
E4 C5	B20	Sicilian defense	Classical, Spassky Variation
E4 C6 BC4	B10	Caro-Kann	Hillbilly attack
E4 C6 C4 D5	B10	Caro-Kann	Anti-anti-Caro-Kann defense
E4 C6 C4	B10	Caro-Kann	Anti-Caro-Kann defense
E4 C6 D3	B10	Caro-Kann	Closed (Breyer) Variation
E4 C6 D4 D5 E5 BF5 C3 E6 BE2	B12	Caro-Kann	Advance, Short Variation
E4 C6 D4 D5 E5	B12	Caro-Kann	Advance Variation
E4 C6 D4 D5 EXD5 CXD5 BD3 NC6 C3 NF6 BF4	B13	Caro-Kann	Exchange, Rubinstein Variation
E4 C6 D4 D5 EXD5 CXD5 C4 NF6 C5	B13	Caro-Kann	Panov-Botvinnik, Gunderam attack
E4 C6 D4 D5 EXD5 CXD5 C4 NF6 NC3 E6	B14	Caro-Kann	Panov-Botvinnik attack, 5...e6
E4 C6 D4 D5 EXD5 CXD5 C4 NF6 NC3 G6	B14	Caro-Kann	Panov-Botvinnik attack, 5...g6
E4 C6 D4 D5 EXD5 CXD5 C4 NF6 NC3 NC6 BG5 DXC4 D5 NA5	B13	Caro-Kann	Panov-Botvinnik, Herzog defense
E4 C6 D4 D5 EXD5 CXD5 C4 NF6 NC3 NC6 BG5 E6	B13	Caro-Kann	Panov-Botvinnik, normal Variation
E4 C6 D4 D5 EXD5 CXD5 C4 NF6 NC3 NC6 BG5 QA5	B13	Caro-Kann	Panov-Botvinnik, Czerniak Variation
E4 C6 D4 D5 EXD5 CXD5 C4 NF6 NC3 NC6 BG5 QB6	B13	Caro-Kann	Panov-Botvinnik, Reifir (Spielmann) Variation
E4 C6 D4 D5 EXD5 CXD5 C4 NF6 NC3	B13	Caro-Kann	Panov-Botvinnik attack
E4 C6 D4 D5 EXD5 CXD5 C4	B13	Caro-Kann	Panov-Botvinnik attack
E4 C6 D4 D5 EXD5	B13	Caro-Kann	Exchange Variation
E4 C6 D4 D5 F3	B12	Caro-Kann	Tartakower (fantasy) Variation
E4 C6 D4 D5 NC3 B5	B15	Caro-Kann	Gurgenidze counter-attack
E4 C6 D4 D5 NC3 DXE4 F3	B15	Caro-Kann	Rasa-Studier gambit
E4 C6 D4 D5 NC3 DXE4 NXE4 BF5 NG3 BG6 F4	B18	Caro-Kann	Classical, Maroczy attack
E4 C6 D4 D5 NC3 DXE4 NXE4 BF5 NG3 BG6 H4 H6 NF3 ND7 H5	B19	Caro-Kann	Classical, Spassky Variation
E4 C6 D4 D5 NC3 DXE4 NXE4 BF5 NG3 BG6 H4 H6 NF3 ND7	B19	Caro-Kann	Classical, 7...Nd7
E4 C6 D4 D5 NC3 DXE4 NXE4 BF5 NG3 BG6 H4	B18	Caro-Kann	Classical, 6.h4
E4 C6 D4 D5 NC3 DXE4 NXE4 BF5 NG3 BG6 NH3	B18	Caro-Kann	Classical, Flohr Variation
E4 C6 D4 D5 NC3 DXE4 NXE4 BF5	B18	Caro-Kann	Classical Variation
E4 C6 D4 D5 NC3 DXE4 NXE4 ND7	B17	Caro-Kann	Steinitz Variation
E4 C6 D4 D5 NC3 DXE4 NXE4 NF6 BD3	B15	Caro-Kann	Alekhine gambit
E4 C6 D4 D5 NC3 DXE4 NXE4 NF6 NXF6+ EXF6 BC4	B15	Caro-Kann	Forgacs Variation
E4 C6 D4 D5 NC3 DXE4 NXE4 NF6 NXF6+ EXF6	B15	Caro-Kann	Tartakower (Nimzovich) Variation
E4 C6 D4 D5 NC3 DXE4 NXE4 NF6 NXF6+ GXF6	B16	Caro-Kann	Bronstein-Larsen Variation
E4 C6 D4 D5 NC3 DXE4 NXE4	B15	Caro-Kann defense	Rasa-Studier gambit
E4 C6 D4 D5 NC3 G6	B15	Caro-Kann	Gurgenidze system
E4 C6 D4 D5 NC3	B15	Caro-Kann defense	Panov-Botvinnik attack, 5...g6
E4 C6 D4 D5 ND2 QB6	B12	Caro-Kann	Edinburgh Variation
E4 C6 D4 D5 ND2	B12	Caro-Kann	3.Nd2
E4 C6 D4 D5	B12	Caro-Kann defense	Two knights, 3...Bg4
E4 C6 D4 NA6 NC3 NC7	B12	de Bruycker defense	Two knights, 3...Bg4
E4 C6 D4 NF6	B12	Caro-Masi defense	Two knights, 3...Bg4
E4 C6 D4	B12	Caro-Kann defense	Two knights, 3...Bg4
E4 C6 NC3 D5 NF3 BG4	B11	Caro-Kann	Two knights, 3...Bg4
E4 C6 NC3 D5 NF3	B10	Caro-Kann	Two knights Variation
E4 C6 NC3 D5 QF3	B10	Caro-Kann	GOldman (Spielmann) Variation
E4 C6 NC3	B10	Caro-Kann defense	Closed (Breyer) Variation
E4 C6	B10	Caro-Kann defense	Austrian attack, Ljubojevic Variation
E4 D5 EXD5 NF6 C4 C6	B01	Scandinavian gambit	Icelandic gambit
E4 D5 EXD5 NF6 C4 E6	B01	Scandinavian	Icelandic gambit
E4 D5 EXD5 NF6 D4 G6	B01	Scandinavian	Richter Variation
E4 D5 EXD5 NF6 D4 NXD5 C4 NB4	B01	Scandinavian	Kiel Variation
E4 D5 EXD5 NF6 D4 NXD5	B01	Scandinavian	Marshall Variation
E4 D5 EXD5 NF6 D4	B01	Scandinavian defense	Icelandic gambit
E4 D5 EXD5 NF6	B01	Scandinavian defense	Pytel-Wade Variation
E4 D5 EXD5 QXD5 NC3 QA5 B4	B01	Scandinavian, Mieses-Kotrvc gambit	Anderssen counter-attack, Collijn Variation
E4 D5 EXD5 QXD5 NC3 QA5 D4 E5 DXE5 BB4 BD2 NC6 NF3	B01	Scandinavian	Anderssen counter-attack Orthodox attack
E4 D5 EXD5 QXD5 NC3 QA5 D4 E5 NF3 BG4	B01	Scandinavian	Anderssen counter-attack, Collijn Variation
E4 D5 EXD5 QXD5 NC3 QA5 D4 E5 NF3	B01	Scandinavian	Anderssen counter-attack, Goteborg system
E4 D5 EXD5 QXD5 NC3 QA5 D4 E5	B01	Scandinavian	Anderssen counter-attack
E4 D5 EXD5 QXD5 NC3 QA5 D4 NF6 NF3 BF5 NE5 C6 G4	B01	Scandinavian defense, Gruenfeld Variation 	Neo-Mongoloid defense
E4 D5 EXD5 QXD5 NC3 QA5 D4 NF6 NF3 BF5	B01	Scandinavian defense	Neo-Mongoloid defense
E4 D5 EXD5 QXD5 NC3 QA5 D4 NF6 NF3 BG4 H3	B01	Scandinavian defense, Lasker Variation 	Neo-Mongoloid defense
E4 D5 EXD5 QXD5 NC3 QD6	B01	Scandinavian	Pytel-Wade Variation
E4 D5	B01	Scandinavian (center counter) defense	Neo-Mongoloid defense
E4 D6 D4 NF6 NC3 C6	B07	Pirc	Ufimtsev-Pytel Variation
E4 D6 D4 NF6 NC3 G6 BC4	B07	Pirc	Holmov system
E4 D6 D4 NF6 NC3 G6 BE2 BG7 G4	B07	Pirc	Chinese Variation
E4 D6 D4 NF6 NC3 G6 BE2 BG7 H4	B07	Pirc	bayonet (Mariotti) attack
E4 D6 D4 NF6 NC3 G6 BE2	B07	Pirc defense	Byrne Variation
E4 D6 D4 NF6 NC3 G6 BE3 C6 QD2	B07	Pirc	150 attack
E4 D6 D4 NF6 NC3 G6 BG5	B07	Pirc	Byrne Variation
E4 D6 D4 NF6 NC3 G6 F4 BG7 BC4	B09	Pirc	Austrian attack, Ljubojevic Variation
E4 D6 D4 NF6 NC3 G6 F4 BG7 NF3 C5	B09	Pirc	Austrian attack, Dragon formation
E4 D6 D4 NF6 NC3 G6 F4 BG7 NF3 O-O BD3	B09	Pirc	Austrian attack, 6.Bd3
E4 D6 D4 NF6 NC3 G6 F4 BG7 NF3 O-O BE3	B09	Pirc	Austrian attack, 6.Be3
E4 D6 D4 NF6 NC3 G6 F4 BG7 NF3 O-O E5	B09	Pirc	Austrian attack, 6.e5
E4 D6 D4 NF6 NC3 G6 F4 BG7 NF3 O-O	B09	Pirc	Austrian attack
E4 D6 D4 NF6 NC3 G6 F4	B09	Pirc	Austrian attack
E4 D6 D4 NF6 NC3 G6 G3	B07	Pirc	Sveshnikov system
E4 D6 D4 NF6 NC3 G6 NF3 BG7 BE2	B08	Pirc	Classical system, 5.Be2
E4 D6 D4 NF6 NC3 G6 NF3 BG7 H3	B08	Pirc	Classical, h3 system
E4 D6 D4 NF6 NC3 G6 NF3 BG7	B08	Pirc	Classical (Two knights) system
E4 D6 D4 NF6 NC3 G6 NF3	B08	Pirc	Classical (Two knights) system
E4 D6 D4 NF6 NC3 G6	B07	Pirc defense	Ufimtsev-Pytel Variation
E4 D6 D4 NF6 NC3	B07	Pirc defense	Pseudo-Austrian attack
E4 E5 A3	C20	KP	Mengarini's Opening
E4 E5 BC4 BC5 B4 BXB4 F4 EXF4 NF3 BE7 D4 BH4+ G3 FXG3 O-O GXH2+ KH1	C23	Bishop's Opening	Four pawns' gambit
E4 E5 BC4 BC5 B4 BXB4 F4	C23	Bishop's Opening	MacDonnell double gambit
E4 E5 BC4 BC5 B4	C23	Bishop's Opening	Wing gambit
E4 E5 BC4 BC5 C3 D5	C23	Bishop's Opening	Lewis counter-gambit
E4 E5 BC4 BC5 C3 NF6 D4 EXD4 E5 D5 EXF6 DXC4 QH5 O-O	C23	Bishop's Opening	Pratt Variation
E4 E5 BC4 BC5 C3 QG5	C23	Bishop's Opening	del Rio Variation
E4 E5 BC4 BC5 C3	C23	Bishop's Opening	Philidor Variation
E4 E5 BC4 BC5 D4	C23	Bishop's Opening	Lewis gambit
E4 E5 BC4 BC5 QE2 NC6 C3 NF6 F4	C23	Bishop's Opening	Lopez gambit
E4 E5 BC4 BC5	C23	Bishop's Opening	Classical Variation
E4 E5 BC4 C6 D4 D5 EXD5 CXD5 BB5+ BD7 BXD7+ NXD7 DXE5 NXE5 NE2	C23	Bishop's Opening	Lisitsyn Variation
E4 E5 BC4 C6	C23	Bishop's Opening	Philidor counter-attack
E4 E5 BC4 F5 D3	C23	Bishop's Opening	Calabrese counter-gambit, Jaenisch Variation
E4 E5 BC4 F5	C23	Bishop's Opening	Calabrese counter-gambit
E4 E5 BC4 NF6 D4 EXD4 NF3 D5 EXD5 BB4+ C3 QE7	C24	Bishop's Opening	Urusov gambit, Panov Variation
E4 E5 BC4 NF6 D4 EXD4 NF3	C24	Bishop's Opening	Urusov gambit
E4 E5 BC4 NF6 D4	C24	Bishop's Opening	Ponziani gambit
E4 E5 BC4 NF6 F4	C24	Bishop's Opening	Greco gambit
E4 E5 BC4 NF6	C24	Bishop's Opening	Berlin defense
E4 E5 BC4	C23	Bishop's Opening	Hall Variation
E4 E5 C3	C20	KP	Lopez Opening
E4 E5 D3	C20	KP	Indian Opening
E4 E5 D4 EXD4 C3 D5	C21	Danish gambit	Soerensen defense
E4 E5 D4 EXD4 C3 DXC3 BC4 CXB2 BXB2 D5	C21	Danish gambit	Schlechter defense
E4 E5 D4 EXD4 C3 DXC3 BC4 CXB2 BXB2 QE7	C21	Danish gambit	Collijn defense
E4 E5 D4 EXD4 C3	C21	Danish gambit	Lopez Opening
E4 E5 D4 EXD4 F4	C21	Halasz gambit	Lopez Opening
E4 E5 D4 EXD4 NF3 C5 BC4 B5	C21	center game, Kieseritsky Variation 	Lopez Opening
E4 E5 D4 EXD4 QXD4 NC6 QC4	C22	center game	Hall Variation
E4 E5 D4 EXD4 QXD4 NC6 QE3 BB4+ C3 BE7	C22	center game	Charousek Variation
E4 E5 D4 EXD4 QXD4 NC6 QE3 F5	C22	center game	l'Hermet Variation
E4 E5 D4 EXD4 QXD4 NC6 QE3 NF6 NC3 BB4 BD2 O-O O-O-O RE8 BC4 D6 NH3	C22	center game	Kupr)k Variation
E4 E5 D4 EXD4 QXD4 NC6 QE3 NF6	C22	center game	Berger Variation
E4 E5 D4 EXD4 QXD4 NC6 QE3	C22	center game	Paulsen attack
E4 E5 D4 EXD4 QXD4 NC6	C22	center game	Soerensen defense
E4 E5 D4 EXD4 QXD4	C21	center game	Soerensen defense
E4 E5 D4 EXD4	C21	center game	Lopez Opening
E4 E5 F3	C20	KP	King's head Opening
E4 E5 F4 BC5 NF3 D6 B4	C30	KGD	Classical, Heath Variation
E4 E5 F4 BC5 NF3 D6 C3 BG4 FXE5 DXE5 QA4	C30	KGD	Classical, Marshall attack
E4 E5 F4 BC5 NF3 D6 C3 F5 FXE5 DXE5 D4 EXD4 BC4	C30	KGD	Classical, Reti Variation
E4 E5 F4 BC5 NF3 D6 C3 F5	C30	KGD	Classical counter-gambit
E4 E5 F4 BC5 NF3 D6 C3	C30	KGD	Classical, 4.c3
E4 E5 F4 BC5 NF3 D6 FXE5	C30	KGD	Classical, SOldatenkov Variation
E4 E5 F4 BC5 NF3 D6 NC3 ND7	C30	KGD	Classical, Hanham Variation
E4 E5 F4 BC5 NF3 D6 NC3 NF6 BC4 NC6 D3 BG4 H3 BXF3 QXF3 EXF4	C30	KGD	Classical, Svenonius Variation
E4 E5 F4 BC5	C30	KGD	Classical Variation
E4 E5 F4 C5	C30	KGD	Mafia defense
E4 E5 F4 D5 EXD5 C6	C31	KGD	Nimzovich counter-gambit
E4 E5 F4 D5 EXD5 E4 BB5	C31	KGD	Falkbeer, Nimzovich Variation
E4 E5 F4 D5 EXD5 E4 D3 NF6 DXE4 NXE4 NF3 BC5 QE2 BF2+ KD1 QXD5+ NFD2	C32	KGD	Falkbeer, Alapin Variation
E4 E5 F4 D5 EXD5 E4 D3 NF6 DXE4 NXE4 NF3 BC5 QE2 BF5 G4 O-O	C32	KGD	Falkbeer, Tarrasch Variation
E4 E5 F4 D5 EXD5 E4 D3 NF6 DXE4 NXE4 NF3 BC5 QE2 BF5	C32	KGD	Falkbeer, Main line, 7...Bf5
E4 E5 F4 D5 EXD5 E4 D3 NF6 DXE4 NXE4 QE2 QXD5 ND2 F5 G4	C32	KGD	Falkbeer, Charousek Variation
E4 E5 F4 D5 EXD5 E4 D3 NF6 DXE4 NXE4 QE2	C32	KGD	Falkbeer, Charousek gambit
E4 E5 F4 D5 EXD5 E4 D3 NF6 DXE4	C32	KGD	Falkbeer, 5.de
E4 E5 F4 D5 EXD5 E4 D3 NF6 NC3 BB4 BD2 E3	C31	KGD	Falkbeer, Morphy gambit
E4 E5 F4 D5 EXD5 E4 D3 NF6 ND2	C32	KGD	Falkbeer, Keres Variation
E4 E5 F4 D5 EXD5 E4 D3 NF6 QE2	C32	KGD	Falkbeer, Reti Variation
E4 E5 F4 D5 EXD5 E4 D3	C31	KGD	Falkbeer, 4.d3
E4 E5 F4 D5 EXD5 E4 NC3 NF6 QE2	C31	KGD	Falkbeer, Rubinstein Variation
E4 E5 F4 D5 EXD5 E4	C31	KGD	Falkbeer, 3...e4
E4 E5 F4 D5 EXD5	C31	KGD	Falkbeer counter-gambit
E4 E5 F4 D5 NC3	C31	KGD	Falkbeer, Milner-Barry Variation
E4 E5 F4 D5 NF3	C31	KGD	Falkbeer, Tartakower Variation
E4 E5 F4 D5	C31	KGD	Falkbeer counter-gambit
E4 E5 F4 EXF4 B3	C33	KGA	Orsini gambit
E4 E5 F4 EXF4 BC4 B5	C33	KGA	Bishop's gambit, Bryan counter-gambit
E4 E5 F4 EXF4 BC4 C6	C33	KGA	Bishop's gambit, Ruy Lopez defense
E4 E5 F4 EXF4 BC4 D5 BXD5 C6	C33	KGA	Bishop's gambit, Anderssen Variation
E4 E5 F4 EXF4 BC4 D5 BXD5 NF6	C33	KGA	Bishop's gambit, Morphy Variation
E4 E5 F4 EXF4 BC4 D5 BXD5 QH4+ KF1 BD6	C33	KGA	Bishop's gambit, Boren-Svenonius Variation
E4 E5 F4 EXF4 BC4 D5 BXD5 QH4+ KF1 G5 G3	C33	KGA	Bishop's gambit, Gifford Variation
E4 E5 F4 EXF4 BC4 D5	C33	KGA	Bishop's gambit, Bledow Variation
E4 E5 F4 EXF4 BC4 F5 QE2 QH4+ KD1 FXE4 NC3 KD8	C33	KGA	Lopez-Gianutio counter-gambit, Hein Variation
E4 E5 F4 EXF4 BC4 F5	C33	KGA	Bishop's gambit, Lopez-Gianutio counter-gambit
E4 E5 F4 EXF4 BC4 NC6	C33	KGA	Bishop's gambit, Maurian defense
E4 E5 F4 EXF4 BC4 NE7	C33	KGA	Bishop's gambit, Steinitz defense
E4 E5 F4 EXF4 BC4 NF6 NC3 BB4 E5	C33	KGA	Bishop's gambit, Paulsen attack
E4 E5 F4 EXF4 BC4 NF6 NC3 C6	C33	KGA	Bishop's gambit, Jaenisch Variation
E4 E5 F4 EXF4 BC4 NF6 NC3	C33	KGA	Bishop's gambit, Bogolyubov Variation
E4 E5 F4 EXF4 BC4 NF6	C33	KGA	Bishop's gambit, Cozio (Morphy) defense
E4 E5 F4 EXF4 BC4 QH4+ KF1 B5	C33	KGA	Bishop's gambit, Bryan counter-gambit
E4 E5 F4 EXF4 BC4 QH4+ KF1 BC5	C33	KGA	Bishop's gambit, Greco Variation
E4 E5 F4 EXF4 BC4 QH4+ KF1 D5 BXD5 G5 G3	C33	KGA	Bishop's gambit, Chigorin's attack
E4 E5 F4 EXF4 BC4 QH4+ KF1 G5 NC3 BG7 D4 D6 E5	C33	KGA	Bishop's gambit, Grimm attack
E4 E5 F4 EXF4 BC4 QH4+ KF1 G5 NC3 BG7 D4 NE7 G3	C33	KGA	Bishop's gambit, McDonnell attack
E4 E5 F4 EXF4 BC4 QH4+ KF1 G5 NC3 BG7 D4 NE7	C33	KGA	Bishop's gambit, Classical defense
E4 E5 F4 EXF4 BC4 QH4+ KF1 G5 NC3 BG7 G3 FXG3 QF3	C33	KGA	Bishop's gambit, Fraser Variation
E4 E5 F4 EXF4 BC4 QH4+ KF1 G5 NC3 BG7 G3	C33	KGA	Bishop's gambit, McDonnell attack
E4 E5 F4 EXF4 BC4 QH4+ KF1 G5 QF3	C33	KGA	Bishop's gambit, Classical defense, Cozio attack
E4 E5 F4 EXF4 BC4 QH4+ KF1 G5	C33	KGA	Bishop's gambit, Classical defense
E4 E5 F4 EXF4 BC4 QH4+ KF1 NC6	C33	KGA	Bishop's gambit, Boden defense
E4 E5 F4 EXF4 BC4	C33	KGA	Bishop's gambit
E4 E5 F4 EXF4 BD3	C33	KGA	Schurig gambit
E4 E5 F4 EXF4 BE2	C33	KGA	Lesser Bishop's (Petroff-Jaenisch-Tartakower) gambit
E4 E5 F4 EXF4 D4	C33	KGA	Villemson (Steinitz) gambit
E4 E5 F4 EXF4 H4	C33	KGA	Pawn's gambit (Stamma gambit)
E4 E5 F4 EXF4 KF2	C33	KGA	Tumbleweed gambit
E4 E5 F4 EXF4 NC3	C33	KGA	Keres (Mason-Steinitz) gambit
E4 E5 F4 EXF4 NF3 BE7 BC4 BH4+ G3 FXG3 O-O GXH2+ KH1	C35	KGA	Cunningham, Three pawns gambit
E4 E5 F4 EXF4 NF3 BE7 BC4 BH4+ G3	C35	KGA	Cunningham, Bertin gambit
E4 E5 F4 EXF4 NF3 BE7 BC4 NF6	C35	KGA	Cunningham, Euwe defense
E4 E5 F4 EXF4 NF3 BE7	C35	KGA	Cunningham defense
E4 E5 F4 EXF4 NF3 D5 EXD5 NF6 BB5+ C6 DXC6 BXC6 BC4 ND5	C36	KGA	Abbazia defense, Botvinnik Variation
E4 E5 F4 EXF4 NF3 D5 EXD5 NF6	C36	KGA	Abbazia defense, Modern Variation
E4 E5 F4 EXF4 NF3 D5	C36	KGA	Abbazia defense (Classical defense, Modern defense[!])
E4 E5 F4 EXF4 NF3 D6	C34	KGA	Fischer defense
E4 E5 F4 EXF4 NF3 F5	C34	KGA	Gianutio counter-gambit
E4 E5 F4 EXF4 NF3 G5 BC4 BG7 H4 H6 D4 D6 NC3 C6 HXG5 HXG5 RXH8 BXH8 NE5	C38	KGA	Greco gambit
E4 E5 F4 EXF4 NF3 G5 BC4 BG7 H4 H6 D4 D6 QD3	C38	KGA	Philidor gambit, Schultz Variation
E4 E5 F4 EXF4 NF3 G5 BC4 BG7 H4	C38	KGA	Philidor gambit
E4 E5 F4 EXF4 NF3 G5 BC4 BG7 O-O	C38	KGA	Hanstein gambit
E4 E5 F4 EXF4 NF3 G5 BC4 BG7	C38	King's knight's gambit	Muzio gambit, Brentano defense
E4 E5 F4 EXF4 NF3 G5 BC4 G4 BXF7	C37	KGA	Lolli gambit (wild Muzio gambit)
E4 E5 F4 EXF4 NF3 G5 BC4 G4 BXF7+ KXF7 O-O GXF3 QXF3 QF6 D4 QXD4+ BE3 QF6 NC3	C37	KGA	Lolli gambit, Young Variation
E4 E5 F4 EXF4 NF3 G5 BC4 G4 D4	C37	KGA	Ghulam Kassim gambit
E4 E5 F4 EXF4 NF3 G5 BC4 G4 NC3	C37	KGA	MacDonnell gambit
E4 E5 F4 EXF4 NF3 G5 BC4 G4 NE5 QH4+ KF1 F3	C37	KGA	Cochrane gambit
E4 E5 F4 EXF4 NF3 G5 BC4 G4 NE5 QH4+ KF1 NC6	C37	KGA	Herzfeld gambit
E4 E5 F4 EXF4 NF3 G5 BC4 G4 NE5 QH4+ KF1 NH6 D4 D6	C37	KGA	Salvio gambit, Anderssen counter-attack
E4 E5 F4 EXF4 NF3 G5 BC4 G4 NE5 QH4+ KF1 NH6 D4 F3	C37	KGA	Silberschmidt gambit
E4 E5 F4 EXF4 NF3 G5 BC4 G4 NE5	C37	KGA	Salvio gambit
E4 E5 F4 EXF4 NF3 G5 BC4 G4 O-O D5	C37	KGA	Muzio gambit, Brentano defense
E4 E5 F4 EXF4 NF3 G5 BC4 G4 O-O GXF3 QXF3 NC6	C37	KGA	Muzio gambit, Holloway defense
E4 E5 F4 EXF4 NF3 G5 BC4 G4 O-O GXF3 QXF3 QE7	C37	KGA	Muzio gambit, From defense
E4 E5 F4 EXF4 NF3 G5 BC4 G4 O-O GXF3 QXF3 QF6 E5 QXE5 BXF7	C37	KGA	double Muzio gambit
E4 E5 F4 EXF4 NF3 G5 BC4 G4 O-O GXF3 QXF3 QF6 E5 QXE5 D3 BH6 NC3 NE7 BD2 NBC6 RAE1	C37	KGA	Muzio gambit, Paulsen Variation
E4 E5 F4 EXF4 NF3 G5 BC4 G4 O-O QE7	C37	KGA	Muzio gambit, Kling and Horwitz counter-attack
E4 E5 F4 EXF4 NF3 G5 BC4 G4 O-O	C37	KGA	Muzio gambit
E4 E5 F4 EXF4 NF3 G5 BC4 NC6	C37	KGA	Blachly gambit
E4 E5 F4 EXF4 NF3 G5 BC4	C37	KGA	King's knight's gambit
E4 E5 F4 EXF4 NF3 G5 D4 G4 NE5	C37	KGA	Soerensen gambit
E4 E5 F4 EXF4 NF3 G5 D4	C37	KGA	Rosentreter gambit
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 BE7	C39	KGA	Kieseritsky, Polerio defense
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 BG7	C39	KGA	Kieseritsky, Paulsen defense
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 D5 D4 NF6 BXF4 NXE4 ND2	C39	KGA	Kieseritsky, Brentano defense, Caro Variation
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 D5 D4 NF6 BXF4	C39	KGA	Kieseritsky, Brentano defense
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 D5 D4 NF6 EXD5 QXD5 NC3 BB4 KF2	C39	KGA	Kieseritsky, Brentano defense, Kaplanek Variation
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 D5	C39	KGA	Kieseritsky, Brentano (Campbell) defense
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 D6	C39	KGA	Kieseritsky, Kolisch defense
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 H5 BC4 RH7 D4 BH6 NC3	C39	KGA	Kieseritsky, long whip defense, Jaenisch Variation
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 H5	C39	KGA	Kieseritsky, long whip (Stockwhip, Classical) defense
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 NC6	C39	KGA	Kieseritsky, Neumann defense
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 NF6 BC4 D5 EXD5 BD6 O-O	C39	KGA	Kieseritsky, Rice gambit
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 NF6 BC4	C39	KGA	Kieseritsky, Berlin defense, 6.Bc4
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 NF6 NXG4 D5	C39	KGA	Kieseritsky, Berlin defense, Riviere Variation
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 NF6	C39	KGA	Kieseritsky, Berlin defense
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 QE7 D4 F5 BC4	C39	KGA	Kieseritsky, Salvio defense, Cozio Variation
E4 E5 F4 EXF4 NF3 G5 H4 G4 NE5 QE7	C39	KGA	Kieseritsky, Salvio (Rosenthal) defense
E4 E5 F4 EXF4 NF3 G5 H4 G4 NG5 H6 NXF7 KXF7 BC4	C39	KGA	Allgaier, Walker attack
E4 E5 F4 EXF4 NF3 G5 H4 G4 NG5 H6 NXF7 KXF7 BC4+ D5 BXD5+ KG7 D4	C39	KGA	Allgaier, Urusov attack
E4 E5 F4 EXF4 NF3 G5 H4 G4 NG5 H6 NXF7 KXF7 D4 D5 BXF4 DXE4 BC4+ KG7 BE5	C39	KGA	Allgaier, Cook Variation
E4 E5 F4 EXF4 NF3 G5 H4 G4 NG5 H6 NXF7 KXF7 D4	C39	KGA	Allgaier, ThorOld Variation
E4 E5 F4 EXF4 NF3 G5 H4 G4 NG5 H6 NXF7 KXF7 NC3	C39	KGA	Allgaier, Blackburne gambit
E4 E5 F4 EXF4 NF3 G5 H4 G4 NG5 H6 NXF7 KXF7 QXG4 NF6 QXF4 BD6	C39	KGA	Allgaier, Horny defense
E4 E5 F4 EXF4 NF3 G5 H4 G4 NG5 NF6	C39	KGA	Allgaier, Schlechter defense
E4 E5 F4 EXF4 NF3 G5 H4 G4 NG5	C39	KGA	Allgaier gambit
E4 E5 F4 EXF4 NF3 G5 H4	C39	King's knight's gambit	Philidor gambit, Schultz Variation
E4 E5 F4 EXF4 NF3 G5 NC3	C37	KGA	Quaade gambit
E4 E5 F4 EXF4 NF3 H6	C34	KGA	Becker defense
E4 E5 F4 EXF4 NF3 NE7	C34	KGA	Bonsch-Osmolovsky Variation
E4 E5 F4 EXF4 NF3 NF6	C34	KGA	Schallop defense
E4 E5 F4 EXF4 NF3	C34	King's knight's gambit	Bishop's gambit, Jaenisch Variation
E4 E5 F4 EXF4 QE2	C33	KGA	Carrera (Basman) gambit
E4 E5 F4 EXF4 QF3	C33	KGA	Breyer gambit
E4 E5 F4 EXF4	C33	King's gambit accepted	Falkbeer, Reti Variation
E4 E5 F4 NF6	C30	KGD	2...Nf6
E4 E5 F4 QF6 NF3 QXF4 NC3 BB4 BC4	C30	KGD	Norwalde Variation , Buecker gambit
E4 E5 F4 QF6	C30	KGD	Norwalde Variation
E4 E5 F4 QH4+ G3 QE7	C30	KGD	Keene's defense
E4 E5 F4	C30	King's gambit	Heyde Variation
E4 E5 NC3 BB4 QG4 NF6	C25	Vienna	Zhuravlev countergambit
E4 E5 NC3 NC6 D4	C25	Vienna	Fyfe gambit
E4 E5 NC3 NC6 F4 EXF4 D4 QH4+ KE2 B6	C25	Vienna	Steinitz gambit, Fraser-Minckwitz Variation
E4 E5 NC3 NC6 F4 EXF4 D4 QH4+ KE2 D5	C25	Vienna	Steinitz gambit, Zukertort defense
E4 E5 NC3 NC6 F4 EXF4 D4	C25	Vienna	Steinitz gambit
E4 E5 NC3 NC6 F4 EXF4 NF3 G5 BC4 G4 O-O GXF3 QXF3 NE5 QXF4 QF6	C25	Vienna	Hamppe-Muzio, Dubois Variation
E4 E5 NC3 NC6 F4 EXF4 NF3 G5 BC4 G4 O-O	C25	Vienna	Hamppe-Muzio gambit
E4 E5 NC3 NC6 F4 EXF4 NF3 G5 D4 G4 BC4 GXF3 O-O D5 EXD5 BG4 DXC6	C25	Vienna	Pierce gambit, Rushmere attack
E4 E5 NC3 NC6 F4 EXF4 NF3 G5 D4	C25	Vienna	Pierce gambit
E4 E5 NC3 NC6 F4 EXF4 NF3 G5 H4 G4 NG5 D6	C25	Vienna	Hamppe-Allgaier gambit, Alapin Variation
E4 E5 NC3 NC6 F4 EXF4 NF3 G5 H4 G4 NG5	C25	Vienna	Hamppe-Allgaier gambit
E4 E5 NC3 NC6 F4 EXF4 NF3	C25	Vienna gambit	Steinitz gambit, Fraser-Minckwitz Variation
E4 E5 NC3 NC6 F4	C25	Vienna gambit	Fyfe gambit
E4 E5 NC3 NC6 G3	C25	Vienna	Paulsen Variation
E4 E5 NC3 NC6	C25	Vienna game, Max Lange defense	Zhuravlev countergambit
E4 E5 NC3 NF6 A3	C26	Vienna	Mengarini Variation
E4 E5 NC3 NF6 BC4 NC6	C28	Vienna game	Lichtenhein defense
E4 E5 NC3 NF6 BC4 NXE4 NF3 D5	C27	Boden-Kieseritsky gambit	Lichtenhein defense
E4 E5 NC3 NF6 BC4 NXE4 NF3	C27	Boden-Kieseritsky gambit	Alekhine Variation
E4 E5 NC3 NF6 BC4 NXE4 QH5 ND6 BB3 BE7 NF3 NC6 NXE5	C27	Vienna	Alekhine Variation
E4 E5 NC3 NF6 BC4 NXE4 QH5 ND6 BB3 BE7	C27	Vienna game	Adams' gambit
E4 E5 NC3 NF6 BC4 NXE4 QH5 ND6 BB3 NC6 D4	C27	Vienna	Adams' gambit
E4 E5 NC3 NF6 BC4 NXE4 QH5 ND6 BB3 NC6 NB5 G6 QF3 F5 QD5 QE7 NXC7+ KD8 NXA8 B6	C27	Vienna	`Frankenstein-Dracula' Variation
E4 E5 NC3 NF6 BC4 NXE4	C27	Vienna game	Paulsen-Mieses Variation
E4 E5 NC3 NF6 BC4	C26	Vienna game	Paulsen-Mieses Variation
E4 E5 NC3 NF6 F4 D5 D3	C29	Vienna gambit, Steinitz Variation 	Heyde Variation
E4 E5 NC3 NF6 F4 D5 FXE5 NXE4 D3 QH4+ G3 NXG3 NF3 QH5 NXD5	C29	Vienna gambit, Wurzburger trap	Heyde Variation
E4 E5 NC3 NF6 F4 D5 FXE5 NXE4 D3	C29	Vienna gambit	Heyde Variation
E4 E5 NC3 NF6 F4 D5 FXE5 NXE4 NF3 BE7	C29	Vienna gambit	Breyer Variation
E4 E5 NC3 NF6 F4 D5 FXE5 NXE4 NF3 BG4 QE2	C29	Vienna gambit	Kaufmann Variation
E4 E5 NC3 NF6 F4 D5 FXE5 NXE4 QF3 F5 D4	C29	Vienna gambit	Heyde Variation
E4 E5 NC3 NF6 F4 D5 FXE5 NXE4 QF3 F5	C29	Vienna gambit	Bardeleben Variation
E4 E5 NC3 NF6 F4 D5 FXE5 NXE4 QF3	C29	Vienna gambit	Paulsen attack
E4 E5 NC3 NF6 F4 D5	C29	Vienna gambit	Lichtenhein defense
E4 E5 NC3 NF6 G3	C26	Vienna	Paulsen-Mieses Variation
E4 E5 NC3 NF6	C26	Vienna	Falkbeer Variation
E4 E5 NC3	C25	Vienna game	Urusov gambit, Panov Variation
E4 E5 NE2	C20	Alapin's Opening	Lopez Opening
E4 E5 NF3 D5 EXD5 BD6	C40	QP counter-gambit	Maroczy gambit
E4 E5 NF3 D5	C40	QP counter-gambit (elephant gambit)	Kieseritsky, Rice gambit
E4 E5 NF3 D6 BC4 BE7 C3	C41	Philidor	Steinitz Variation
E4 E5 NF3 D6 BC4 F5 D4 EXD4 NG5 NH6 NXH7	C41	Philidor	Lopez counter-gambit, Jaenisch Variation
E4 E5 NF3 D6 BC4 F5	C41	Philidor	Lopez counter-gambit
E4 E5 NF3 D6 D4 EXD4 NXD4 D5 EXD5	C41	Philidor	Paulsen attack
E4 E5 NF3 D6 D4 EXD4 NXD4 G6	C41	Philidor	Larsen Variation
E4 E5 NF3 D6 D4 EXD4 NXD4 NF6 NC3 BE7 BE2 O-O O-O C5 NF3 NC6 BG5 BE6 RE1	C41	Philidor	Berger Variation
E4 E5 NF3 D6 D4 EXD4 NXD4 NF6	C41	Philidor	Exchange Variation
E4 E5 NF3 D6 D4 EXD4 NXD4	C41	Philidor	Exchange Variation
E4 E5 NF3 D6 D4 EXD4 QXD4 BD7	C41	Philidor	Boden Variation
E4 E5 NF3 D6 D4 EXD4	C41	Philidor	Exchange Variation
E4 E5 NF3 D6 D4 F5 DXE5 FXE4 NG5 D5 E6 BC5 NC3	C41	Philidor	Philidor counter-gambit, Berger Variation
E4 E5 NF3 D6 D4 F5 DXE5 FXE4 NG5 D5 E6	C41	Philidor	Philidor counter-gambit, del Rio attack
E4 E5 NF3 D6 D4 F5 NC3	C41	Philidor	Philidor counter-gambit, Zukertort Variation
E4 E5 NF3 D6 D4 F5	C41	Philidor	Philidor counter-gambit
E4 E5 NF3 D6 D4 ND7 BC4 C6 C3	C41	Philidor	Hanham, Delmar Variation
E4 E5 NF3 D6 D4 ND7 BC4 C6 NC3	C41	Philidor	Hanham, Schlechter Variation
E4 E5 NF3 D6 D4 ND7 BC4 C6 NG5 NH6 F4 BE7 O-O O-O C3 D5	C41	Philidor	Hanham, Berger Variation
E4 E5 NF3 D6 D4 ND7 BC4 C6 NG5	C41	Philidor	Hanham, Kmoch Variation
E4 E5 NF3 D6 D4 ND7 BC4 C6 O-O BE7 DXE5	C41	Philidor	Hanham, Steiner Variation
E4 E5 NF3 D6 D4 ND7 BC4 C6 O-O	C41	Philidor	Hanham, Krause Variation
E4 E5 NF3 D6 D4 ND7	C41	Philidor	Hanham Variation
E4 E5 NF3 D6 D4 NF6 BC4	C41	Philidor	Nimzovich, Klein Variation
E4 E5 NF3 D6 D4 NF6 DXE5 NXE4 NBD2	C41	Philidor	Nimzovich, Sokolsky Variation
E4 E5 NF3 D6 D4 NF6 DXE5 NXE4 QD5	C41	Philidor	Nimzovich, Rellstab Variation
E4 E5 NF3 D6 D4 NF6 DXE5	C41	Philidor	Nimzovich Variation
E4 E5 NF3 D6 D4 NF6 NC3 NBD7 BC4 BE7 NG5 O-O BXF7	C41	Philidor	Nimzovich, Larobok Variation
E4 E5 NF3 D6 D4 NF6 NC3 NBD7 BC4 BE7 O-O O-O QE2 C6 A4 EXD4	C41	Philidor	Nimzovich, Sozin Variation
E4 E5 NF3 D6 D4 NF6 NC3 NBD7	C41	Philidor	Improved Hanham Variation
E4 E5 NF3 D6 D4 NF6 NG5	C41	Philidor	Nimzovich, Locock Variation
E4 E5 NF3 D6 D4 NF6	C41	Philidor	Nimzovich (Jaensch) Variation
E4 E5 NF3 D6 D4	C41	Philidor's defense	Lopez counter-gambit, Jaenisch Variation
E4 E5 NF3 D6	C41	Philidor's defense	corkscrew counter-gambit
E4 E5 NF3 F5 BC4 FXE4 NXE5 D5	C40	Latvian	Polerio Variation
E4 E5 NF3 F5 BC4 FXE4 NXE5 NF6	C40	Latvian	corkscrew counter-gambit
E4 E5 NF3 F5 BC4 FXE4 NXE5 QG5 NF7 QXG2 RF1 D5 NXH8 NF6	C40	Latvian	Behting Variation
E4 E5 NF3 F5 BC4	C40	Latvian gambit, 3.Bc4	Fraser defense
E4 E5 NF3 F5 NXE5 NC6	C40	Latvian	Fraser defense
E4 E5 NF3 F5 NXE5 QF6 D4 D6 NC4 FXE4 NE3	C40	Latvian	Nimzovich Variation
E4 E5 NF3 F5	C40	Latvian counter-gambit	Maroczy gambit
E4 E5 NF3 F6	C40	Damiano's defense	Kieseritsky, Rice gambit
E4 E5 NF3 NC6 BB5 A6 BA4 B5 BB3 BC5	C70	Ruy Lopez	Graz Variation
E4 E5 NF3 NC6 BB5 A6 BA4 B5 BB3 NA5	C70	Ruy Lopez	Taimanov (chase/wing/Accelerated counterthrust) Variation
E4 E5 NF3 NC6 BB5 A6 BA4 B5	C70	Ruy Lopez	Caro Variation
E4 E5 NF3 NC6 BB5 A6 BA4 BB4	C70	Ruy Lopez	Alapin's defense deferred
E4 E5 NF3 NC6 BB5 A6 BA4 BC5	C70	Ruy Lopez	Classical defense deferred
E4 E5 NF3 NC6 BB5 A6 BA4 D6 BXC6+ BXC6 D4 F6	C73	Ruy Lopez	Modern Steinitz defense, Alapin Variation
E4 E5 NF3 NC6 BB5 A6 BA4 D6 BXC6+ BXC6 D4	C73	Ruy Lopez	Modern Steinitz defense, Richter Variation
E4 E5 NF3 NC6 BB5 A6 BA4 D6 C3 BD7 D4 G6	C76	Ruy Lopez	Modern Steinitz defense, Fianchetto (Bronstein) Variation
E4 E5 NF3 NC6 BB5 A6 BA4 D6 C3 BD7 D4 NGE7	C75	Ruy Lopez	Modern Steinitz defense, Rubinstein Variation
E4 E5 NF3 NC6 BB5 A6 BA4 D6 C3 BD7	C75	Ruy Lopez	Modern Steinitz defense
E4 E5 NF3 NC6 BB5 A6 BA4 D6 C3 F5 EXF5 BXF5 O-O	C74	Ruy Lopez	Siesta, Kopayev Variation
E4 E5 NF3 NC6 BB5 A6 BA4 D6 C3 F5	C74	Ruy Lopez	Modern Steinitz defense, siesta Variation
E4 E5 NF3 NC6 BB5 A6 BA4 D6 C3	C74	Ruy Lopez	Modern Steinitz defense
E4 E5 NF3 NC6 BB5 A6 BA4 D6 C4	C71	Ruy Lopez	Modern Steinitz defense, Duras (Keres) Variation
E4 E5 NF3 NC6 BB5 A6 BA4 D6 D4 B5 BB3 NXD4 NXD4 EXD4 QXD4 C5	C71	Ruy Lopez	Noah's ark trap
E4 E5 NF3 NC6 BB5 A6 BA4 D6 NC3	C71	Ruy Lopez	Modern Steinitz defense, Three knights Variation
E4 E5 NF3 NC6 BB5 A6 BA4 D6 O-O	C72	Ruy Lopez	Modern Steinitz defense, 5.O-O
E4 E5 NF3 NC6 BB5 A6 BA4 D6	C71	Ruy Lopez	Modern Steinitz defense
E4 E5 NF3 NC6 BB5 A6 BA4 F5	C70	Ruy Lopez	Schliemann defense deferred
E4 E5 NF3 NC6 BB5 A6 BA4 G6	C70	Ruy Lopez	Fianchetto defense deferred
E4 E5 NF3 NC6 BB5 A6 BA4 ND4	C70	Ruy Lopez	Bird's defense deferred
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 BXC6	C77	Ruy Lopez	Treybal (Bayreuth) Variation (Exchange var. deferred)
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 D3 D6 C4	C77	Ruy Lopez	Morphy defense, Duras Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 D3	C77	Ruy Lopez	Anderssen Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 NC3	C77	Ruy Lopez	Four knights (Tarrasch) Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O B5 BB3 BB7	C78	Ruy Lopez	Archangelsk (counterthrust) Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O B5 BB3 BE7 A4	C78	Ruy Lopez	Wing attack
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O B5 BB3 D6 NG5 D5 EXD5 ND4 RE1 BC5 RXE5+ KF8	C78	Ruy Lopez	Rabinovich Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O B5 BB3 D6	C78	Ruy Lopez	...b5 & ...d6
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BC5	C78	Ruy Lopez	Moeller defense
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 BXC6	C85	Ruy Lopez	Exchange Variation doubly deferred (DERLD)
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 D4 EXD4 E5 NE4 C3	C84	Ruy Lopez	Closed, Basque gambit (North Spanish Variation )
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 D4	C84	Ruy Lopez	Closed, center attack
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 QE2 B5 BB3 D6	C86	Ruy Lopez	Worrall attack, solid line
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 QE2 B5 BB3 O-O	C86	Ruy Lopez	Worrall attack, sharp line
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 QE2	C86	Ruy Lopez	Worrall attack
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 BB7	C88	Ruy Lopez	Trajkovic counter-attack
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 D6 C3 NA5 BC2 C5 D4 QC7 H3 NC6 D5 NB8 NBD2 G5	C88	Ruy Lopez	Closed, Leonhardt Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 D6 C3 NA5 BC2 C5 D4 QC7 A4	C88	Ruy Lopez	Closed, Balla Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 D6 D4 NXD4 NXD4 EXD4 QXD4 C5	C88	Ruy Lopez	Noah's ark trap
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 D6 D4	C88	Ruy Lopez	Closed, 7...d6, 8.d4
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O A4	C88	Ruy Lopez	Closed, anti-Marshall 8.a4
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D5 EXD5 E4	C89	Ruy Lopez	Marshall, Herman Steiner Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D5 EXD5 NXD5 NXE5 NXE5 RXE5 C6	C89	Ruy Lopez	Marshall counter-attack, 11...c6
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D5 EXD5 NXD5 NXE5 NXE5 RXE5 C6 BXD5 CXD5 D4 BD6 RE3	C89	Ruy Lopez	Marshall, Kevitz Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D5 EXD5 NXD5 NXE5 NXE5 RXE5 C6 D4	C89	Ruy Lopez	Marshall, Main line, 12.d2d4
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D5 EXD5 NXD5 NXE5 NXE5 RXE5 C6 D4 BD6 RE1 QH4 G3 QH3	C89	Ruy Lopez	Marshall, Main line, 14...Qh3
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D5 EXD5 NXD5 NXE5 NXE5 RXE5 C6 D4 BD6 RE1 QH4 G3 QH3 BE3 BG4 QD3 RAE8 ND2 RE6 A4 QH5	C89	Ruy Lopez	Marshall, Main line, Spassky Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D5	C89	Ruy Lopez	Marshall counter-attack
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 A3	C90	Ruy Lopez	Closed, Suetin Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 BC2	C90	Ruy Lopez	Closed, Lutikov Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 D3	C90	Ruy Lopez	Closed, Pilnik Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 D4 BG4	C91	Ruy Lopez	Closed, Bogolyubov Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 D4	C91	Ruy Lopez	Closed, 9.d4
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 A5	C92	Ruy Lopez	Closed, Keres (9...a5) Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 BB7	C92	Ruy Lopez	Closed, Flohr-Zaitsev system (Lenzerheide Variation )
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 BE6	C92	Ruy Lopez	Closed, Kholmov Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 H6	C93	Ruy Lopez	Closed, Smyslov defense
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NA5 BC2	C96	Ruy Lopez	Closed (8...Na5)
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NA5 BC2 C6 D4 QC7	C96	Ruy Lopez	Closed, Rossolimo defense
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NA5 BC2 C5	C96	Ruy Lopez	Closed (10...c5)
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NA5 BC2 C5 D4 NC6	C96	Ruy Lopez	Closed, Borisenko defense
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NA5 BC2 C5 D4 ND7	C96	Ruy Lopez	Closed, Keres (...Nd7) defense
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NA5 BC2 C5 D4 QC7	C97	Ruy Lopez	Closed, Chigorin defense
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NA5 BC2 C5 D4 QC7 NBD2 BD7 NF1 RFE8 NE3 G6	C97	Ruy Lopez	Closed, Chigorin, Yugoslav system
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NA5 BC2 C5 D4 QC7 NBD2 NC6	C98	Ruy Lopez	Closed, Chigorin, 12...Nc6
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NA5 BC2 C5 D4 QC7 NBD2 NC6 DXC5	C98	Ruy Lopez	Closed, Chigorin, Rauzer attack
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NA5 BC2 C5 D4 QC7 NBD2 CXD4 CXD4	C99	Ruy Lopez	Closed, Chigorin, 12...c5d4
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NB8	C94	Ruy Lopez	Closed, Breyer defense
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NB8 D4	C95	Ruy Lopez	Closed, Breyer, 10.d4
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NB8 D4 NBD7	C95	Ruy Lopez	Closed, Breyer, Borisenko Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NB8 D4 NBD7 NBD2 BB7 BC2 C5	C95	Ruy Lopez	Closed, Breyer, Gligoric Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 NB8 D4 NBD7 NH4	C95	Ruy Lopez	Closed, Breyer, Simagin Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3 ND7	C92	Ruy Lopez	Closed, Ragozin-Petrosian (`Keres') Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6 H3	C92	Ruy Lopez	Closed, 9.h3
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3 D6	C90	Ruy Lopez	Closed (with ...d6)
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O C3	C88	Ruy Lopez	Closed, 8.c3
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3 O-O	C88	Ruy Lopez	Closed, 7...O-O
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 B5 BB3	C88	Ruy Lopez	Closed
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7 RE1 D6	C87	Ruy Lopez	Closed, Averbach Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O BE7	C84	Ruy Lopez	Closed defense
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O D6 BXC6+ BXC6 D4 BG4	C79	Ruy Lopez	Steinitz defense deferred, Lipnitsky Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O D6 BXC6+ BXC6 D4 NXE4 RE1 F5 DXE5 D5 NC3	C79	Ruy Lopez	Steinitz defense deferred, Boleslavsky Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O D6 BXC6+ BXC6 D4 NXE4	C79	Ruy Lopez	Steinitz defense deferred, Rubinstein Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O D6	C79	Ruy Lopez	Steinitz defense deferred (Russian defense)
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 A4 NXD4 NXD4 EXD4 NC3	C80	Ruy Lopez	Open, Berger Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 A4 NXD4	C80	Ruy Lopez	Open, Schlechter defense
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 C4	C80	Ruy Lopez	Open, Harksen gambit
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 C3 BC5	C82	Ruy Lopez	Open, Italian Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 C3 BC5 NBD2	C82	Ruy Lopez	Open, St. Petersburg Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 C3 BC5 NBD2 O-O BC2 NXF2	C82	Ruy Lopez	Open, Dilworth Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 C3 BC5 QD3	C82	Ruy Lopez	Open, Motzko attack
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 C3 BC5 QD3 NE7	C82	Ruy Lopez	Open, Motzko attack, Nenarokov Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 C3 BE7	C83	Ruy Lopez	Open, Classical defense
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 C3 BE7 NBD2 O-O QE2	C83	Ruy Lopez	Open, Malkin Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 C3 BE7 RE1	C83	Ruy Lopez	Open, 9...Be7, 10.Re1
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 C3 BE7 RE1 O-O ND4 QD7 NXE6 FXE6 RXE4	C83	Ruy Lopez	Open, Tarrasch trap
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 C3 BE7 RE1 O-O ND4 NXE5	C83	Ruy Lopez	Open, Breslau Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 C3 NC5	C82	Ruy Lopez	Open, Berlin Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 C3	C82	Ruy Lopez	Open, 9.c3
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 NBD2	C80	Ruy Lopez	Open, Bernstein Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 NBD2 NC5 C3 D4 NG5	C80	Ruy Lopez	Open, Bernstein Variation , Karpov gambit
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 QE2 BE7 RD1 O-O C4 BXC4 BXC4 QD7	C81	Ruy Lopez	Open, Howell attack, Ekstroem Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 QE2 BE7 C4	C81	Ruy Lopez	Open, Howell attack, Adam Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6 QE2	C81	Ruy Lopez	Open, Howell attack
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 BE6	C80	Ruy Lopez	Open, 8...Be6
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5 NE7	C80	Ruy Lopez	Open, Zukertort Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3 D5 DXE5	C80	Ruy Lopez	Open, 8.de
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 BB3	C80	Ruy Lopez	Open, 7.Bb3
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 D5	C80	Ruy Lopez	Open, Richter Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5 NXE5	C80	Ruy Lopez	Open, Friess attack
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 B5	C80	Ruy Lopez	Open, 6.d4 b5
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4 EXD4	C80	Ruy Lopez	Open, Riga Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 D4	C80	Ruy Lopez	Open, 6.d4
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 NC3	C80	Ruy Lopez	Open, Knorre Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4 QE2	C80	Ruy Lopez	Open, Tartakower Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O NXE4	C80	Ruy Lopez	Open (Tarrasch) defense
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 O-O	C78	Ruy Lopez	5.O-O
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 QE2 B5 BB3 BE7 D4 D6 C3 BG4	C77	Ruy Lopez	Wormald attack, Gruenfeld Variation
E4 E5 NF3 NC6 BB5 A6 BA4 NF6 QE2	C77	Ruy Lopez	Wormald (Alapin) attack
E4 E5 NF3 NC6 BB5 A6 BA4 NF6	C77	Ruy Lopez	Morphy defense
E4 E5 NF3 NC6 BB5 A6 BA4 NGE7	C70	Ruy Lopez	Cozio defense deferred
E4 E5 NF3 NC6 BB5 A6 BA4	C70	Ruy Lopez	Exchange, Bronstein Variation
E4 E5 NF3 NC6 BB5 A6 BXC6 DXC6 D4 EXD4 QXD4 QXD4 NXD4 BD7	C68	Ruy Lopez	Exchange, Alekhine Variation
E4 E5 NF3 NC6 BB5 A6 BXC6 DXC6 NC3 F6 D3	C68	Ruy Lopez	Exchange, Romanovsky Variation
E4 E5 NF3 NC6 BB5 A6 BXC6 DXC6 NC3	C68	Ruy Lopez	Exchange, Keres Variation
E4 E5 NF3 NC6 BB5 A6 BXC6 DXC6 O-O BG4 H3 H5	C69	Ruy Lopez	Exchange Variation , Alapin gambit
E4 E5 NF3 NC6 BB5 A6 BXC6 DXC6 O-O F6	C69	Ruy Lopez	Exchange, Gligoric Variation
E4 E5 NF3 NC6 BB5 A6 BXC6 DXC6 O-O QD6	C69	Ruy Lopez	Exchange, Bronstein Variation
E4 E5 NF3 NC6 BB5 A6 BXC6 DXC6 O-O	C69	Ruy Lopez	Exchange Variation , 5.O-O
E4 E5 NF3 NC6 BB5 A6 BXC6	C68	Ruy Lopez	Exchange Variation
E4 E5 NF3 NC6 BB5 BC5 C3 BB6	C64	Ruy Lopez	Classical defense, Charousek Variation
E4 E5 NF3 NC6 BB5 BC5 C3 F5	C64	Ruy Lopez	Cordel gambit
E4 E5 NF3 NC6 BB5 BC5 C3 NF6 O-O O-O D4 BB6	C64	Ruy Lopez	Classical defense, Benelux Variation
E4 E5 NF3 NC6 BB5 BC5 C3 QE7	C64	Ruy Lopez	Classical defense, Boden Variation
E4 E5 NF3 NC6 BB5 BC5 C3	C64	Ruy Lopez	Classical defense, 4.c3
E4 E5 NF3 NC6 BB5 BC5 O-O ND4 B4	C64	Ruy Lopez	Classical defense, Zaitsev Variation
E4 E5 NF3 NC6 BB5 BC5	C64	Ruy Lopez	Classical (Cordel) defense
E4 E5 NF3 NC6 BB5 BE7	C60	Ruy Lopez	Lucena defense
E4 E5 NF3 NC6 BB5 D6 D4 BD7 C4	C62	Ruy Lopez	Old Steinitz defense, Semi-Duras Variation
E4 E5 NF3 NC6 BB5 D6 D4 BD7 NC3 NF6 BXC6	C62	Ruy Lopez	Old Steinitz defense, Nimzovich attack
E4 E5 NF3 NC6 BB5 D6	C62	Ruy Lopez	Old Steinitz defense
E4 E5 NF3 NC6 BB5 F5 NC3	C63	Ruy Lopez	Schliemann defense, Berger Variation
E4 E5 NF3 NC6 BB5 F5	C63	Ruy Lopez	Schliemann defense
E4 E5 NF3 NC6 BB5 F6	C60	Ruy Lopez	Nuernberg Variation
E4 E5 NF3 NC6 BB5 G5	C60	Ruy Lopez	Brentano defense
E4 E5 NF3 NC6 BB5 G6	C60	Ruy Lopez	Fianchetto (Smyslov/Barnes) defense
E4 E5 NF3 NC6 BB5 NA5	C60	Ruy Lopez	Pollock defense
E4 E5 NF3 NC6 BB5 ND4 NXD4 EXD4 O-O NE7	C61	Ruy Lopez	Bird's defense, Paulsen Variation
E4 E5 NF3 NC6 BB5 ND4	C61	Ruy Lopez	Bird's defense
E4 E5 NF3 NC6 BB5 NF6 D3 BC5 BE3	C65	Ruy Lopez	Berlin defense, Kaufmann Variation
E4 E5 NF3 NC6 BB5 NF6 D3 D6 BXC6	C65	Ruy Lopez	Berlin defense, Anderssen Variation
E4 E5 NF3 NC6 BB5 NF6 D3 D6 C4	C65	Ruy Lopez	Berlin defense, Duras Variation
E4 E5 NF3 NC6 BB5 NF6 D3 NE7 NXE5 C6	C65	Ruy Lopez	Berlin defense, Mortimer trap
E4 E5 NF3 NC6 BB5 NF6 D3 NE7	C65	Ruy Lopez	Berlin defense, Mortimer Variation
E4 E5 NF3 NC6 BB5 NF6 D4 EXD4 O-O	C65	Ruy Lopez	Berlin defense, Nyholm attack
E4 E5 NF3 NC6 BB5 NF6 O-O BC5	C65	Ruy Lopez	Berlin defense, Beverwijk Variation
E4 E5 NF3 NC6 BB5 NF6 O-O D6 D4 BD7 NC3 BE7 BG5	C66	Ruy Lopez	Closed Berlin defense, Bernstein Variation
E4 E5 NF3 NC6 BB5 NF6 O-O D6 D4 BD7 NC3 BE7 BXC6	C66	Ruy Lopez	Closed Berlin defense, Showalter Variation
E4 E5 NF3 NC6 BB5 NF6 O-O D6 D4 BD7 NC3 BE7 RE1 O-O	C66	Ruy Lopez	Berlin defense, Tarrasch trap
E4 E5 NF3 NC6 BB5 NF6 O-O D6 D4 BD7 NC3 BE7	C66	Ruy Lopez	Berlin defense, hedgehog Variation
E4 E5 NF3 NC6 BB5 NF6 O-O D6 D4 BD7 NC3 EXD4	C66	Ruy Lopez	Closed Berlin defense, Wolf Variation
E4 E5 NF3 NC6 BB5 NF6 O-O D6 D4 ND7	C66	Ruy Lopez	Closed Berlin defense, Chigorin Variation
E4 E5 NF3 NC6 BB5 NF6 O-O D6	C66	Ruy Lopez	Berlin defense, 4.O-O, d6
E4 E5 NF3 NC6 BB5 NF6 O-O NXE4 D4 A6	C67	Ruy Lopez	Berlin defense, Rosenthal Variation
E4 E5 NF3 NC6 BB5 NF6 O-O NXE4 D4 BE7 DXE5	C67	Ruy Lopez	Berlin defense, Minckwitz Variation
E4 E5 NF3 NC6 BB5 NF6 O-O NXE4 D4 BE7 QE2 D5	C67	Ruy Lopez	Berlin defense, Trifunovic Variation
E4 E5 NF3 NC6 BB5 NF6 O-O NXE4 D4 BE7 QE2 ND6 BXC6 BXC6 DXE5 NB7 NC3 O-O RE1 NC5 ND4 NE6 BE3 NXD4 BXD4 C5	C67	Ruy Lopez	Berlin defense, Rio de Janeiro Variation
E4 E5 NF3 NC6 BB5 NF6 O-O NXE4 D4 BE7 QE2 ND6 BXC6 BXC6 DXE5 NB7 C4	C67	Ruy Lopez	Berlin defense, Zukertort Variation
E4 E5 NF3 NC6 BB5 NF6 O-O NXE4 D4 BE7 QE2 ND6 BXC6 BXC6 DXE5 NB7 B3	C67	Ruy Lopez	Berlin defense, Pillsbury Variation
E4 E5 NF3 NC6 BB5 NF6 O-O NXE4 D4 BE7 QE2 ND6 BXC6 BXC6 DXE5 NB7 ND4	C67	Ruy Lopez	Berlin defense, Winawer attack
E4 E5 NF3 NC6 BB5 NF6 O-O NXE4 D4 BE7 QE2 ND6 BXC6 BXC6 DXE5 NF5	C67	Ruy Lopez	Berlin defense, Cordel Variation
E4 E5 NF3 NC6 BB5 NF6 O-O NXE4 D4 BE7	C67	Ruy Lopez	Open Berlin defense, 5...Be7
E4 E5 NF3 NC6 BB5 NF6 O-O NXE4 D4 ND6 BA4	C67	Ruy Lopez	Open Berlin defense, Showalter Variation
E4 E5 NF3 NC6 BB5 NF6 O-O NXE4 D4 ND6 DXE5	C67	Ruy Lopez	Open Berlin defense, l'Hermet Variation
E4 E5 NF3 NC6 BB5 NF6 O-O NXE4	C67	Ruy Lopez	Berlin defense, Open Variation
E4 E5 NF3 NC6 BB5 NF6 O-O	C65	Ruy Lopez	Berlin defense, 4.O-O
E4 E5 NF3 NC6 BB5 NF6	C65	Ruy Lopez	Berlin defense
E4 E5 NF3 NC6 BB5 NGE7 NC3 G6	C60	Ruy Lopez	Cozio defense, Paulsen Variation
E4 E5 NF3 NC6 BB5 NGE7	C60	Ruy Lopez	Cozio defense
E4 E5 NF3 NC6 BB5 QE7	C60	Ruy Lopez	Vinogradov Variation
E4 E5 NF3 NC6 BB5	C60	Ruy Lopez (Spanish Opening)	Steinitz Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BB6 A4 A6 NC3	C51	Evans gambit declined, Showalter Variation 	Canal Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BB6 A4	C51	Evans gambit declined, 5.a4	Canal Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BB6 B5 NA5 NXE5 NH6 D4 D6 BXH6 DXE5 BXG7 RG8 BXF7+ KXF7 BXE5 QG5 ND2	C51	Evans gambit declined, Pavlov Variation 	Canal Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BB6 B5 NA5 NXE5 NH6	C51	Evans gambit declined, Lange Variation 	Canal Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BB6 B5 NA5 NXE5 QG5 BXF7+ KE7 QH5	C51	Evans gambit declined, Vasquez Variation 	Canal Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BB6 B5 NA5 NXE5 QG5 QF3 QXE5 QXF7+ KD8 BB2	C51	Evans gambit declined, Hicken Variation 	Canal Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BB6 B5 NA5 NXE5 QG5	C51	Evans gambit declined, Hirschbach Variation 	Canal Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BB6 BB2	C51	Evans gambit declined, Cordel Variation 	Canal Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 D4 B5	C52	Evans gambit	Leonhardt Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 D4 D6 BG5	C52	Evans gambit	Sokolsky Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 D4 D6 QB3 QD7 DXE5 DXE5 O-O BB6 BA3 NA5 NXE5	C52	Evans gambit	Levenfish Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 D4 D6 QB3	C52	Evans gambit	Tartakower attack
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 D4 D6	C52	Evans gambit	Leonhardt Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 D4 EXD4 O-O DXC3 QB3 QF6 E5 QG6 NXC3 NGE7 BA3	C52	Evans gambit	compromised defense, Paulsen Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 D4 EXD4 O-O DXC3 QB3 QF6 E5 QG6 NXC3 NGE7 RD1	C52	Evans gambit	compromised defense, Potter Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 D4 EXD4 O-O DXC3	C52	Evans gambit	compromised defense
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 O-O D6 D4 BB6	C52	Evans gambit	Lasker defense
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 O-O D6 D4 BD7	C52	Evans gambit	Sanders-Alapin Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 O-O D6 D4 BG4	C52	Evans gambit	Alapin-Steinitz Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 O-O D6 D4 EXD4 QB3	C52	Evans gambit	Waller attack
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 O-O D6	C52	Evans gambit	Richardson attack
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 O-O NF6 D4 O-O NXE5	C52	Evans gambit	Richardson attack
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5 O-O	C52	Evans gambit	Sokolsky Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BA5	C52	Evans gambit	Cordel Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BC5 D4 EXD4 O-O D6 CXD4 BB6 D5 NA5 BB2	C51	Evans gambit	Ulvestad Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BC5 D4 EXD4 O-O D6 CXD4 BB6 D5 NA5 BB2 NE7	C51	Evans gambit	Paulsen Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BC5 D4 EXD4 O-O D6 CXD4 BB6 NC3	C51	Evans gambit	Morphy attack
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BC5 D4 EXD4 O-O D6 CXD4 BB6 NC3 NA5 BG5	C51	Evans gambit	Goering attack
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BC5 D4 EXD4 O-O D6 CXD4 BB6 NC3 NA5 BG5 F6 BE3	C51	Evans gambit	Steinitz Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BC5 D4 EXD4 O-O D6 CXD4 BB6 NC3 BG4	C51	Evans gambit	Steinitz Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BC5 D4 EXD4 O-O D6 CXD4 BB6 NC3 BG4 QA4	C51	Evans gambit	Fraser attack
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BC5 D4 EXD4 O-O D6 CXD4 BB6 NC3 BG4 QA4 BD7 QB3 NA5 BXF7+ KF8 QC2	C51	Evans gambit	Fraser-Mortimer attack
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BC5 D4 EXD4 O-O D6 CXD4 BB6	C51	Evans gambit	normal Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BD6	C51	Evans gambit	Stone-Ware Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BE7 D4 NA5	C51	Evans gambit	Cordel Variation
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BE7	C51	Evans gambit	5...Be7
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4 C3 BF8	C51	Evans gambit	Mayet defense
E4 E5 NF3 NC6 BC4 BC5 B4 BXB4	C51	Evans gambit	Canal Variation
E4 E5 NF3 NC6 BC4 BC5 B4 D5	C51	Evans counter-gambit	Canal Variation
E4 E5 NF3 NC6 BC4 BC5 B4	C51	Evans gambit declined	Canal Variation
E4 E5 NF3 NC6 BC4 BC5 BXF7	C50	Giuoco Piano	Jerome gambit
E4 E5 NF3 NC6 BC4 BC5 C3 D6 D4 EXD4 CXD4 BB6	C53	Giuoco Piano	LaBourdonnais Variation
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 B4	C53	Giuoco Piano	Bird's attack
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 CXD4 BB4+ BD2 NXE4 BXB4 NXB4 BXF7+ KXF7 QB3+ D5 NE5+ KF6 F3	C54	Giuoco Piano	Krause Variation
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 CXD4 BB4+ KF1	C54	Giuoco Piano	Cracow Variation
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 CXD4 BB4+ NC3 NXE4 O-O BXC3	C54	Giuoco Piano	Aitken Variation
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 CXD4 BB4+ NC3 NXE4 O-O BXC3 BXC3 D5 BA3	C54	Giuoco Piano	Steinitz Variation
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 CXD4 BB4+ NC3 NXE4 O-O BXC3 D5	C54	Giuoco Piano	Moeller (Therkatz) attack
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 CXD4 BB4+ NC3 NXE4 O-O BXC3 D5 BF6 RE1 NE7 RXE4 D6 BG5 BXG5 NXG5 O-O NXH7	C54	Giuoco Piano	Therkatz-Herzog Variation
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 CXD4 BB4+ NC3 NXE4 O-O BXC3 D5 BF6 RE1 NE7 RXE4 D6 G4	C54	Giuoco Piano	Moeller, bayonet attack
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 CXD4 BB4+ NC3 NXE4 O-O NXC3	C54	Giuoco Piano	Greco Variation
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 CXD4 BB4+ NC3 NXE4 O-O NXC3 BXC3 BXC3 QB3 D5	C54	Giuoco Piano	Bernstein Variation
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 CXD4 BB4+ NC3 NXE4 O-O NXC3 BXC3 BXC3 BA3	C54	Giuoco Piano	Aitken Variation
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 CXD4 BB4+ NC3	C54	Giuoco Piano	Greco's attack
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 CXD4	C54	Giuoco Piano	Anderssen Variation
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 E5 D5 BB5 NE4 CXD4 BB4	C53	Giuoco Piano	Anderssen Variation
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 E5 D5	C53	Giuoco Piano	Ghulam Kassim Variation
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4 EXD4 E5 NE4 BD5 NXF2 KXF2 DXC3+ KG3	C53	Giuoco Piano	Ghulam Kassim Variation
E4 E5 NF3 NC6 BC4 BC5 C3 NF6 D4	C53	Giuoco Piano	Bird's attack
E4 E5 NF3 NC6 BC4 BC5 C3 NF6	C53	Giuoco Piano	Eisinger Variation
E4 E5 NF3 NC6 BC4 BC5 C3 QE7 D4 BB6 BG5	C53	Giuoco Piano	Mestel Variation
E4 E5 NF3 NC6 BC4 BC5 C3 QE7 D4 BB6 D5 NB8 D6	C53	Giuoco Piano	Eisinger Variation
E4 E5 NF3 NC6 BC4 BC5 C3 QE7 D4 BB6 O-O NF6 A4 A6 RE1 D6 H3	C53	Giuoco Piano	Tarrasch Variation
E4 E5 NF3 NC6 BC4 BC5 C3 QE7 D4 BB6	C53	Giuoco Piano	center-hOlding Variation
E4 E5 NF3 NC6 BC4 BC5 C3 QE7	C53	Giuoco Piano	close Variation
E4 E5 NF3 NC6 BC4 BC5 C3	C53	Giuoco Piano	Alapin-Steinitz Variation
E4 E5 NF3 NC6 BC4 BC5 D3 F5 NG5 F4	C50	Giuoco Pianissimo	Dubois Variation
E4 E5 NF3 NC6 BC4 BC5 D3 NF6 NC3 D6 BG5	C50	Giuoco Pianissimo	Canal Variation
E4 E5 NF3 NC6 BC4 BC5 D3 NF6 NC3	C50	Giuoco Pianissimo	Italian Four knights Variation
E4 E5 NF3 NC6 BC4 BC5 D3 NF6	C50	Giuoco Pianissimo	Dubois Variation
E4 E5 NF3 NC6 BC4 BC5 D3	C50	Giuoco Pianissimo	Jerome gambit
E4 E5 NF3 NC6 BC4 BC5 NC3 NF6	C50	Giuoco Piano	Four knights Variation
E4 E5 NF3 NC6 BC4 BC5	C50	Giuoco Piano	Tartakower Variation
E4 E5 NF3 NC6 BC4 BE7 D4 EXD4 C3 NF6 E5 NE4	C50	Hungarian defense	Tartakower Variation
E4 E5 NF3 NC6 BC4 BE7	C50	Hungarian defense	Nimzovich (Paulsen) Variation
E4 E5 NF3 NC6 BC4 F5	C50	Rousseau gambit	Nimzovich (Paulsen) Variation
E4 E5 NF3 NC6 BC4 ND4 NXE5 QG5 NXF7 QXG2 RF1 QXE4+ BE2 NF3	C50	Blackburne shilling gambit	Nimzovich (Paulsen) Variation
E4 E5 NF3 NC6 BC4 NF6 D3	C55	Two knights defense (Modern Bishop's Opening)	Holzhausen attack
E4 E5 NF3 NC6 BC4 NF6 D4 EXD4 E5 D5 BB5 NE4 NXD4 BC5 NXC6 BXF2+ KF1 QH4	C55	Two knights defense, Keidanz Variation 	Holzhausen attack
E4 E5 NF3 NC6 BC4 NF6 D4 EXD4 NG5	C55	Two knights defense, Perreux Variation 	Holzhausen attack
E4 E5 NF3 NC6 BC4 NF6 D4 EXD4 O-O BC5 E5 D5 EXF6 DXC4 RE1+ BE6 FXG7	C55	Two knights	Max Lange attack, Schlechter Variation
E4 E5 NF3 NC6 BC4 NF6 D4 EXD4 O-O BC5 E5 D5 EXF6 DXC4 RE1+ BE6 NG5 QD5 NC3 QF5 G4 QG6 NCE4 BB6 F4 O-O-O	C55	Two knights	Max Lange attack, Berger Variation
E4 E5 NF3 NC6 BC4 NF6 D4 EXD4 O-O BC5 E5 D5 EXF6 DXC4 RE1+ BE6 NG5 QD5 NC3 QF5 NCE4	C55	Two knights	Max Lange attack, Marshall Variation
E4 E5 NF3 NC6 BC4 NF6 D4 EXD4 O-O BC5 E5 D5 EXF6 DXC4 RE1+ BE6 NG5 QD5 NC3 QF5 NCE4 BF8	C55	Two knights	Max Lange attack, Rubinstein Variation
E4 E5 NF3 NC6 BC4 NF6 D4 EXD4 O-O BC5 E5 D5 EXF6 DXC4 RE1+ BE6 NG5 G6	C55	Two knights	Max Lange attack, Loman defense
E4 E5 NF3 NC6 BC4 NF6 D4 EXD4 O-O BC5 E5 NG4 C3	C55	Two knights	Max Lange attack, Krause Variation
E4 E5 NF3 NC6 BC4 NF6 D4 EXD4 O-O BC5 E5 NG4	C55	Two knights	Max Lange attack, Steinitz Variation
E4 E5 NF3 NC6 BC4 NF6 D4 EXD4 O-O BC5 E5	C55	Two knights	Max Lange attack
E4 E5 NF3 NC6 BC4 NF6 D4 EXD4 O-O NXE4 RE1 D5 BXD5 QXD5 NC3 QA5 NXE4 BE6 BG5 H6 BH4 G5 NF6+ KE7 B4	C56	Two knights defense	Yurdansky attack
E4 E5 NF3 NC6 BC4 NF6 D4 EXD4 O-O NXE4 RE1 D5 NC3	C56	Two knights defense	Canal Variation
E4 E5 NF3 NC6 BC4 NF6 D4 EXD4 O-O NXE4	C56	Two knights defense	Max Lange attack, Krause Variation
E4 E5 NF3 NC6 BC4 NF6 D4 EXD4 O-O	C55	Two knights defense	Holzhausen attack
E4 E5 NF3 NC6 BC4 NF6 D4	C55	Two knights defense	Holzhausen attack
E4 E5 NF3 NC6 BC4 NF6 NG5 BC5	C57	Two knights defense	Wilkes Barre (Traxler) Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 B5	C57	Two knights defense	Ulvestad Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NA5 BB5	C58	Two knights defense	Maroczy Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NA5 BB5+ C6 DXC6 BXC6 BE2 H6 NF3 E4 NE5 BD6 D4 QC7 BD2	C59	Two knights defense	Knorre Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NA5 BB5+ C6 DXC6 BXC6 BE2 H6 NF3 E4 NE5 QC7	C59	Two knights defense	Goering Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NA5 BB5+ C6 DXC6 BXC6 BE2 H6 NH3	C59	Two knights defense	Steinitz Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NA5 BB5+ C6 DXC6 BXC6 BE2 H6	C59	Two knights defense	Blackburne Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NA5 BB5+ C6 DXC6 BXC6 BE2	C58	Two knights defense	Blackburne Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NA5 BB5+ C6 DXC6 BXC6 QF3 CXB5	C58	Two knights defense	Blackburne Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NA5 BB5+ C6 DXC6 BXC6 QF3 QC7 BD3	C58	Two knights defense	Paoli Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NA5 BB5+ C6 DXC6 BXC6 QF3 RB8	C58	Two knights defense	Colman Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NA5 BB5+ C6 DXC6 BXC6 QF3	C58	Two knights defense	Bogolyubov Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NA5 D3 H6 NF3 E4 QE2 NXC4 DXC4 BC5 NFD2	C58	Two knights defense	Yankovich Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NA5 D3 H6 NF3 E4 QE2 NXC4 DXC4 BE7	C58	Two knights defense	Maroczy Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NA5 D3	C58	Two knights defense	Kieseritsky Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NA5	C58	Two knights defense	Fegatello attack, Polerio defense
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 ND4 C3 B5 BF1 NXD5 NE4	C57	Two knights defense	Fritz, Gruber Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 ND4	C57	Two knights defense	Fritz Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NXD5 D4 BB4	C57	Two knights defense	Pincus Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NXD5 D4	C57	Two knights defense	Lolli attack
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NXD5 NXF7 KXF7 QF3+ KE6 NC3 NB4 QE4 C6 A3 NA6 D4 NC7	C57	Two knights defense	Fegatello attack, Leonhardt Variation
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NXD5 NXF7 KXF7 QF3+ KE6 NC3 NE7	C57	Two knights defense	Fegatello attack, Polerio defense
E4 E5 NF3 NC6 BC4 NF6 NG5 D5 EXD5 NXD5 NXF7	C57	Two knights defense	Fegatello attack
E4 E5 NF3 NC6 BC4 NF6 NG5	C57	Two knights defense	Canal Variation
E4 E5 NF3 NC6 BC4 NF6 O-O BC5 D4 BXD4 NXD4 NXD4 BG5 D6 F4 QE7 FXE5 DXE5 NC3	C55	Giuoco piano	Holzhausen attack
E4 E5 NF3 NC6 BC4 NF6 O-O BC5 D4 BXD4 NXD4 NXD4 BG5 D6	C55	Giuoco piano	Rosentreter Variation
E4 E5 NF3 NC6 BC4 NF6 O-O BC5 D4 BXD4 NXD4 NXD4 BG5 H6 BH4 G5 F4	C55	Giuoco piano	Rosentreter Variation
E4 E5 NF3 NC6 BC4 NF6	C55	Two knights defense	Moeller, bayonet attack
E4 E5 NF3 NC6 BC4	C50	King's pawn game	Nimzovich (Paulsen) Variation
E4 E5 NF3 NC6 BE2 NF6 D3 D5 NBD2	C44	Inverted Hanham	Modern attack, Trifunovic Variation
E4 E5 NF3 NC6 BE2 NF6 D4	C44	Tayler Opening	Modern attack, Trifunovic Variation
E4 E5 NF3 NC6 BE2	C44	Inverted Hungarian	Modern attack, Trifunovic Variation
E4 E5 NF3 NC6 C3 BE7	C44	Ponziani	Romanishin Variation
E4 E5 NF3 NC6 C3 D5 QA4 BD7	C44	Ponziani	Caro Variation
E4 E5 NF3 NC6 C3 D5 QA4 F6	C44	Ponziani	Steinitz Variation
E4 E5 NF3 NC6 C3 D5 QA4 NF6	C44	Ponziani	Leonhardt Variation
E4 E5 NF3 NC6 C3 F5 D4 D6 D5 FXE4 NG5 NB8 NXE4 NF6 BD3 BE7	C44	Ponziani counter-gambit, Cordel Variation 	Romanishin Variation
E4 E5 NF3 NC6 C3 F5 D4 D6 D5	C44	Ponziani counter-gambit, Schmidt attack	Romanishin Variation
E4 E5 NF3 NC6 C3 F5	C44	Ponziani counter-gambit	Romanishin Variation
E4 E5 NF3 NC6 C3 NF6 D4 NXE4 D5 BC5	C44	Ponziani	Fraser defense
E4 E5 NF3 NC6 C3 NF6	C44	Ponziani	Jaenisch counter-attack
E4 E5 NF3 NC6 C3 NGE7	C44	Ponziani	Reti Variation
E4 E5 NF3 NC6 C3	C44	Ponziani Opening	Modern attack, Trifunovic Variation
E4 E5 NF3 NC6 C4	C44	Dresden Opening	Modern attack, Trifunovic Variation
E4 E5 NF3 NC6 D4 EXD4 BB5	C44	Scotch	Relfsson gambit ('MacLopez')
E4 E5 NF3 NC6 D4 EXD4 BC4 BB4	C44	Scotch gambit	Vitzhum attack
E4 E5 NF3 NC6 D4 EXD4 BC4 BB4+ C3 DXC3 BXC3 BA5 E5	C44	Scotch gambit	Cochrane Variation
E4 E5 NF3 NC6 D4 EXD4 BC4 BB4+ C3 DXC3 BXC3	C44	Scotch gambit	Hanneken Variation
E4 E5 NF3 NC6 D4 EXD4 BC4 BB4+ C3 DXC3 O-O CXB2 BXB2 NF6 NG5 O-O E5 NXE5	C44	Scotch gambit	Hanneken Variation
E4 E5 NF3 NC6 D4 EXD4 BC4 BC5 NG5 NH6 NXF7 NXF7 BXF7+ KXF7 QH5+ G6 QXC5 D5	C44	Scotch gambit	Cochrane-Shumov defense
E4 E5 NF3 NC6 D4 EXD4 BC4 BC5 NG5 NH6 QH5	C44	Scotch gambit	Vitzhum attack
E4 E5 NF3 NC6 D4 EXD4 BC4 BC5 NG5	C44	Scotch gambit	Anderssen (Paulsen, Suhle) counter-attack
E4 E5 NF3 NC6 D4 EXD4 BC4 BC5 O-O D6 C3 BG4	C44	Scotch gambit	Anderssen (Paulsen, Suhle) counter-attack
E4 E5 NF3 NC6 D4 EXD4 BC4 BE7	C44	Scotch gambit	Benima defense
E4 E5 NF3 NC6 D4 EXD4 BC4 NF6	C44	Scotch gambit	Dubois-Reti defense
E4 E5 NF3 NC6 D4 EXD4 BC4	C44	Scotch gambit	Goering gambit, Bardeleben Variation
E4 E5 NF3 NC6 D4 EXD4 C3 DXC3 NXC3 BB4 BC4 NF6	C44	Scotch	Goering gambit, Bardeleben Variation
E4 E5 NF3 NC6 D4 EXD4 C3 DXC3 NXC3 BB4	C44	Scotch	Goering gambit
E4 E5 NF3 NC6 D4 EXD4 C3 DXC3 NXC3 D6 BC4 BG4 O-O NE5 NXE5 BXD1 BXF7+ KE7 ND5	C44	Scotch	Sea-cadet mate
E4 E5 NF3 NC6 D4 EXD4 C3	C44	Scotch	Goering gambit
E4 E5 NF3 NC6 D4 EXD4 NXD4 BC5 BE3 QF6 C3 NGE7 BB5 ND8	C45	Scotch	Paulsen, Gunsberg defense
E4 E5 NF3 NC6 D4 EXD4 NXD4 BC5 BE3 QF6 C3 NGE7 BB5	C45	Scotch	Paulsen attack
E4 E5 NF3 NC6 D4 EXD4 NXD4 BC5 BE3 QF6 C3 NGE7 NC2	C45	Scotch	Meitner Variation
E4 E5 NF3 NC6 D4 EXD4 NXD4 BC5 BE3 QF6 C3 NGE7 QD2 D5 NB5 BXE3 QXE3 O-O NXC7 RB8 NXD5 NXD5 EXD5 NB4	C45	Scotch	Gottschall Variation
E4 E5 NF3 NC6 D4 EXD4 NXD4 BC5 BE3 QF6 C3 NGE7 QD2	C45	Scotch	Blackburne attack
E4 E5 NF3 NC6 D4 EXD4 NXD4 BC5 BE3 QF6 NB5	C45	Scotch	Blumenfeld attack
E4 E5 NF3 NC6 D4 EXD4 NXD4 BC5 NB3 BB4	C45	Scotch	Romanishin Variation
E4 E5 NF3 NC6 D4 EXD4 NXD4 BC5 NB3	C45	Scotch	Potter Variation
E4 E5 NF3 NC6 D4 EXD4 NXD4 BC5	C45	Scotch game	Tartakower Variation
E4 E5 NF3 NC6 D4 EXD4 NXD4 NF6 NXC6 BXC6 E5	C45	Scotch	Mieses Variation
E4 E5 NF3 NC6 D4 EXD4 NXD4 NF6 NXC6 BXC6 ND2	C45	Scotch	Tartakower Variation
E4 E5 NF3 NC6 D4 EXD4 NXD4 NF6	C45	Scotch	Schmidt Variation
E4 E5 NF3 NC6 D4 EXD4 NXD4 NXD4 QXD4 D6 BD3	C45	Scotch	Ghulam Kassim Variation
E4 E5 NF3 NC6 D4 EXD4 NXD4 QH4 NB5 BB4+ BD2 QXE4+ BE2 KD8 O-O BXD2 NXD2 QG6	C45	Scotch	Rosenthal Variation
E4 E5 NF3 NC6 D4 EXD4 NXD4 QH4 NB5 BB4+ BD2	C45	Scotch game	Berger Variation
E4 E5 NF3 NC6 D4 EXD4 NXD4 QH4 NB5 BB4+ ND2 QXE4+ BE2 QXG2 BF3 QH3 NXC7+ KD8 NXA8 NF6 A3	C45	Scotch	Berger Variation
E4 E5 NF3 NC6 D4 EXD4 NXD4 QH4 NB5	C45	Scotch	Horwitz attack
E4 E5 NF3 NC6 D4 EXD4 NXD4 QH4 NC3	C45	Scotch	Steinitz Variation
E4 E5 NF3 NC6 D4 EXD4 NXD4 QH4 NF3	C45	Scotch	Fraser attack
E4 E5 NF3 NC6 D4 EXD4 NXD4 QH4	C45	Scotch	Pulling counter-attack
E4 E5 NF3 NC6 D4 EXD4 NXD4	C45	Scotch game	Dubois-Reti defense
E4 E5 NF3 NC6 D4 NXD4 NXE5 NE6 BC4 C6 O-O NF6 NXF7	C44	Scotch	Cochrane Variation
E4 E5 NF3 NC6 D4 NXD4	C44	Scotch	Lolli Variation
E4 E5 NF3 NC6 D4	C44	Scotch Opening	Romanishin Variation
E4 E5 NF3 NC6 G3	C44	Konstantinopolsky Opening	Modern attack, Trifunovic Variation
E4 E5 NF3 NC6 NC3 BB4 ND5 NF6	C46	Three knights	Schlechter Variation
E4 E5 NF3 NC6 NC3 F5	C46	Three knights	Winawer defense (Gothic defense)
E4 E5 NF3 NC6 NC3 G6 D4 EXD4 ND5	C46	Three knights	Steinitz, Rosenthal Variation
E4 E5 NF3 NC6 NC3 G6	C46	Three knights	Steinitz Variation
E4 E5 NF3 NC6 NC3 NF6 A3	C46	Four knights	Gunsberg Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 A6 BXC6 DXC6 NXE5 NXE4 NXE4 QD4 O-O QXE5 RE1 BE6 D4 QD5	C48	Four knights	Spielmann Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 A6 BXC6	C48	Four knights	Ranken Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4 O-O O-O BXC6	C49	Four knights	Nimzovich (Paulsen) Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4 O-O O-O D3 BXC3 BXC3 D5	C49	Four knights	Svenonius Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4 O-O O-O D3 BXC3 BXC3 D6 RE1	C49	Four knights	Janowski Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4 O-O O-O D3 BXC3	C49	Four knights	Alatortsev Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4 O-O O-O D3 D6 BG5 BE6	C49	Four knights	Symmetrical, Tarrasch Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4 O-O O-O D3 D6 BG5 BXC3 BXC3 QE7 RE1 ND8 D4 BG4	C49	Four knights	Symmetrical, Capablanca Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4 O-O O-O D3 D6 BG5 BXC3 BXC3 QE7	C49	Four knights	Symmetrical, Metger unpin
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4 O-O O-O D3 D6 BG5 NE7 NH4 C6 BC4 D5 BB3 QD6	C49	Four knights	Symmetrical, Blake Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4 O-O O-O D3 D6 BG5 NE7	C49	Four knights	Symmetrical, Pillsbury Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4 O-O O-O D3 D6 NE2	C49	Four knights	Symmetrical, Maroczy system
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4 O-O O-O D3 D6	C49	Four knights	Symmetrical Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4 O-O O-O D3 QE7 NE2 D5	C49	Four knights	Alatortsev Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4 O-O O-O D3	C49	Four knights	double Ruy Lopez
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4 O-O O-O ND5 NXD5 EXD5 E4	C49	Four knights	Gunsberg counter-attack
E4 E5 NF3 NC6 NC3 NF6 BB5 BB4	C49	Four knights	double Ruy Lopez
E4 E5 NF3 NC6 NC3 NF6 BB5 BC5 O-O O-O NXE5 ND4	C48	Four knights	Marshall Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 BC5 O-O O-O NXE5 NXE5 D4 BD6 F4 NC6 E5 BB4	C48	Four knights	Bardeleben Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 BC5	C48	Four knights	Spanish, Classical defense
E4 E5 NF3 NC6 NC3 NF6 BB5 ND4 BE2 NXF3+ BXF3 BC5 O-O O-O D3 D6 NA4 BB6	C48	Four knights	Rubinstein counter-gambit Maroczy Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 ND4 BE2	C48	Four knights	Rubinstein counter-gambit, 5.Be2
E4 E5 NF3 NC6 NC3 NF6 BB5 ND4 NXD4	C48	Four knights	Rubinstein counter-gambit, Exchange Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 ND4 NXE5 QE7 F4	C48	Four knights	Rubinstein counter-gambit, Bogolyubov Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 ND4 O-O	C48	Four knights	Rubinstein counter-gambit, Henneberger Variation
E4 E5 NF3 NC6 NC3 NF6 BB5 ND4	C48	Four knights	Rubinstein counter-gambit
E4 E5 NF3 NC6 NC3 NF6 BB5	C48	Four knights	Spanish Variation
E4 E5 NF3 NC6 NC3 NF6 BC4	C46	Four knights	Italian Variation
E4 E5 NF3 NC6 NC3 NF6 D4 BB4 NXE5	C47	Four knights	Scotch, Krause Variation
E4 E5 NF3 NC6 NC3 NF6 D4 EXD4 ND5	C47	Four knights	Belgrade gambit
E4 E5 NF3 NC6 NC3 NF6 D4 EXD4	C47	Four knights	Scotch, 4...exd4
E4 E5 NF3 NC6 NC3 NF6 D4	C47	Four knights	Scotch Variation
E4 E5 NF3 NC6 NC3 NF6 NXE5	C46	Four knights	Schultze-Mueller gambit
E4 E5 NF3 NC6 NC3 NF6	C46	Four knights game	Steinitz, Rosenthal Variation
E4 E5 NF3 NC6 NC3	C46	Three knights game	Romanishin Variation
E4 E5 NF3 NC6 NXE5 NXE5 D4	C44	Irish (Chicago) gambit	Modern attack, Trifunovic Variation
E4 E5 NF3 NC6	C44	King's pawn game	Modern attack, Trifunovic Variation
E4 E5 NF3 NF6 BC4	C42	Petrov	Italian Variation
E4 E5 NF3 NF6 D4 EXD4 BC4	C43	Petrov	Urusov gambit
E4 E5 NF3 NF6 D4 EXD4 E5 NE4 QE2 NC5 NXD4 NC6	C43	Petrov	Modern attack, Bardeleben Variation
E4 E5 NF3 NF6 D4 EXD4 E5 NE4 QE2	C43	Petrov	Modern attack, Steinitz Variation
E4 E5 NF3 NF6 D4 EXD4 E5 NE4 QXD4	C43	Petrov	Modern attack, Main line
E4 E5 NF3 NF6 D4 NXE4 BD3 D5 NXE5 BD6 O-O O-O C4 BXE5	C43	Petrov	Modern attack, Trifunovic Variation
E4 E5 NF3 NF6 D4 NXE4	C43	Petrov	Modern attack, Symmetrical Variation
E4 E5 NF3 NF6 D4	C43	Petrov	Modern (Steinitz) attack
E4 E5 NF3 NF6 NC3	C42	Petrov Three knights game	Damiano Variation
E4 E5 NF3 NF6 NXE5 D6 NC4	C42	Petrov	Paulsen attack
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 C4	C42	Petrov	Kaufmann attack
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 D3	C42	Petrov	French attack
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 D4 D5 BD3 BD6 O-O O-O C4 BG4 CXD5 F5 RE1 BXH2	C42	Petrov	Classical attack, Marshall trap
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 D4 D5 BD3 BD6 O-O O-O C4 BG4	C42	Petrov	Classical attack, Tarrasch Variation
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 D4 D5 BD3 BD6	C42	Petrov	Classical attack, Marshall Variation
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 D4 D5 BD3 BE7 O-O NC6 C4	C42	Petrov	Classical attack, Jaenisch Variation
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 D4 D5 BD3 BE7 O-O NC6 RE1 BG4 C3 F5 NBD2	C42	Petrov	Classical attack, Berger Variation
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 D4 D5 BD3 BE7 O-O NC6 RE1 BG4 C3 F5 C4	C42	Petrov	Classical attack, Krause Variation
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 D4 D5 BD3 BE7 O-O NC6 RE1 BG4 C3 F5 C4 BH4	C42	Petrov	Classical attack, Maroczy Variation
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 D4 D5 BD3 BE7 O-O NC6 RE1	C42	Petrov	Classical attack, Chigorin Variation
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 D4 D5 BD3 BE7 O-O O-O	C42	Petrov	Classical attack, Mason Variation
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 D4 NF6	C42	Petrov	Classical attack, close Variation
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 D4	C42	Petrov	Classical attack
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 NC3	C42	Petrov	Nimzovich attack
E4 E5 NF3 NF6 NXE5 D6 NF3 NXE4 QE2	C42	Petrov	Cozio (Lasker) attack
E4 E5 NF3 NF6 NXE5 D6 NXF7	C42	Petrov	Cochrane gambit
E4 E5 NF3 NF6 NXE5 NXE4	C42	Petrov	Damiano Variation
E4 E5 NF3 NF6	C42	Petrov's defense	Hanham, Delmar Variation
E4 E5 NF3 QE7	C40	Gunderam defense	Kieseritsky, Rice gambit
E4 E5 NF3 QF6	C40	Greco defense	Kieseritsky, Rice gambit
E4 E5 NF3	C40	King's knight Opening	Kieseritsky, Rice gambit
E4 E5 QF3	C20	KP	Napoleon's Opening
E4 E5 QH5	C20	KP	Patzer Opening
E4 E5	C20	King's pawn game	Winawer, Advance, poisoned pawn, Konstantinopolsky Variation
E4 E6 B3	C00	French	Reti (Spielmann) Variation
E4 E6 C4	C00	French defense, Steiner Variation 	Najdorf, 7...Be7 Main line
E4 E6 D3 D5 ND2 NF6 NGF3 NC6 BE2	C00	French	Reversed Philidor formation
E4 E6 D3	C00	French	King's Indian attack
E4 E6 D4 A6	C00	St. George defense	Reversed Philidor formation
E4 E6 D4 D5 BD3	C00	French	Schlechter Variation
E4 E6 D4 D5 BE3	C00	French	Alapin Variation
E4 E6 D4 D5 E5 C5 C3 NC6 NF3 BD7	C02	French	Advance, Euwe Variation
E4 E6 D4 D5 E5 C5 C3 NC6 NF3 QB6 BD3	C02	French	Advance, Milner-Barry gambit
E4 E6 D4 D5 E5 C5 C3 NC6 NF3	C02	French	Advance, Paulsen attack
E4 E6 D4 D5 E5 C5 C3 NC6	C02	French	Advance Variation
E4 E6 D4 D5 E5 C5 C3 QB6 NF3 BD7	C02	French	Advance, Wade Variation
E4 E6 D4 D5 E5 C5 C3	C02	French	Advance Variation
E4 E6 D4 D5 E5 C5 DXC5	C02	French	Advance, Steinitz Variation
E4 E6 D4 D5 E5 C5 NF3	C02	French	Advance, Nimzovich system
E4 E6 D4 D5 E5 C5 QG4	C02	French	Advance, Nimzovich Variation
E4 E6 D4 D5 E5	C02	French	Advance Variation
E4 E6 D4 D5 EXD5 EXD5 NC3 NF6 BG5 NC6	C01	French	Exchange, Bogolyubov Variation
E4 E6 D4 D5 EXD5 EXD5 NC3 NF6 BG5	C01	French	Exchange, Svenonius Variation
E4 E6 D4 D5 EXD5	C01	French	Exchange Variation
E4 E6 D4 D5 NC3 BB4 BD2	C15	French	Winawer, fingerslip Variation
E4 E6 D4 D5 NC3 BB4 BD3 C5 EXD5 QXD5 BD2	C15	French	Winawer, Kondratiyev Variation
E4 E6 D4 D5 NC3 BB4 E5 C5 A3 BXC3+ BXC3 NE7 A4	C19	French	Winawer, Advance, Smyslov Variation
E4 E6 D4 D5 NC3 BB4 E5 C5 A3 BXC3+ BXC3 NE7 NF3	C19	French	Winawer, Advance, positional Main line
E4 E6 D4 D5 NC3 BB4 E5 C5 A3 BXC3+ BXC3 NE7 QG4 QC7 QXG7 RG8 QXH7 CXD4 KD1	C19	French	Winawer, Advance, poisoned pawn, Euwe-Gligoric Variation
E4 E6 D4 D5 NC3 BB4 E5 C5 A3 BXC3+ BXC3 NE7 QG4 QC7 QXG7 RG8 QXH7 CXD4 NE2	C19	French	Winawer, Advance, poisoned pawn, Konstantinopolsky Variation
E4 E6 D4 D5 NC3 BB4 E5 C5 A3 BXC3+ BXC3 NE7 QG4	C19	French	Winawer, Advance, poisoned pawn Variation
E4 E6 D4 D5 NC3 BB4 E5 C5 A3 BXC3+ BXC3 NE7	C19	French	Winawer, Advance, 6...Ne7
E4 E6 D4 D5 NC3 BB4 E5 C5 A3 BXC3+ BXC3 QC7	C18	French	Winawer, Classical Variation
E4 E6 D4 D5 NC3 BB4 E5 C5 A3 BXC3+ BXC3	C18	French	Winawer, Advance Variation
E4 E6 D4 D5 NC3 BB4 E5 C5 A3 CXD4 AXB4 DXC3 NF3	C17	French	Winawer, Advance, Rauzer Variation
E4 E6 D4 D5 NC3 BB4 E5 C5 A3	C17	French	Winawer, Advance, 5.a3
E4 E6 D4 D5 NC3 BB4 E5 C5 BD2	C17	French	Winawer, Advance, Bogolyubov Variation
E4 E6 D4 D5 NC3 BB4 E5 C5 QG4	C17	French	Winawer, Advance, Russian Variation
E4 E6 D4 D5 NC3 BB4 E5 C5	C17	French	Winawer, Advance Variation
E4 E6 D4 D5 NC3 BB4 E5 QD7	C16	French	Winawer, Petrosian Variation
E4 E6 D4 D5 NC3 BB4 E5	C16	French	Winawer, Advance Variation
E4 E6 D4 D5 NC3 BB4 NE2 DXE4 A3 BXC3	C15	French	Winawer, Alekhine gambit
E4 E6 D4 D5 NC3 BB4 NE2	C15	French	Winawer, Alekhine (Maroczy) gambit
E4 E6 D4 D5 NC3 BB4 NGE2 DXE4 A3 BE7 NXE4 NF6 N2G3 O-O BE2 NC6	C15	French	Winawer, Alekhine gambit, Alatortsev Variation
E4 E6 D4 D5 NC3 BB4 NGE2 DXE4 A3 BXC3+ NXC3 NC6	C15	French	Winawer, Alekhine gambit, Kan Variation
E4 E6 D4 D5 NC3 BB4	C15	French	Winawer (Nimzovich) Variation
E4 E6 D4 D5 NC3 C5	C10	French	Marshall Variation
E4 E6 D4 D5 NC3 DXE4 NXE4 BD7 NF3 BC6	C10	French	Fort Knox Variation
E4 E6 D4 D5 NC3 DXE4 NXE4 ND7 NF3 NGF6 NXF6+ NXF6 NE5	C10	French	Rubinstein, Capablanca line
E4 E6 D4 D5 NC3 DXE4 NXE4 ND7	C10	French	Rubinstein Variation
E4 E6 D4 D5 NC3 DXE4 NXE4 QD5	C10	French	Frere (Becker) Variation
E4 E6 D4 D5 NC3 DXE4	C10	French	Rubinstein Variation
E4 E6 D4 D5 NC3 NF6 BD3	C11	French	Swiss Variation
E4 E6 D4 D5 NC3 NF6 BE3	C11	French	Henneberger Variation
E4 E6 D4 D5 NC3 NF6 BG5 BB4 E5 H6 BC1	C12	French	MacCutcheon, Dr. Olland (Dutch) Variation
E4 E6 D4 D5 NC3 NF6 BG5 BB4 E5 H6 BD2 BXC3 BXC3 NE4 QG4 G6	C12	French	MacCutcheon, Lasker Variation , 8...g6
E4 E6 D4 D5 NC3 NF6 BG5 BB4 E5 H6 BD2 BXC3 bxc3 NE4 QG4 KF8 BC1	C12	French	MacCutcheon, Duras Variation
E4 E6 D4 D5 NC3 NF6 BG5 BB4 E5 H6 BD2 BXC3	C12	French	MacCutcheon, Lasker Variation
E4 E6 D4 D5 NC3 NF6 BG5 BB4 E5 H6 BD2 NFD7	C12	French	MacCutcheon, Tartakower Variation
E4 E6 D4 D5 NC3 NF6 BG5 BB4 E5 H6 BE3	C12	French	MacCutcheon, Janowski Variation
E4 E6 D4 D5 NC3 NF6 BG5 BB4 E5 H6 BH4	C12	French	MacCutcheon, Bernstein Variation
E4 E6 D4 D5 NC3 NF6 BG5 BB4 E5 H6 EXF6 HXG5 FXG7 RG8 H4 GXH4 QG4	C12	French	MacCutcheon, Grigoriev Variation
E4 E6 D4 D5 NC3 NF6 BG5 BB4 E5 H6 EXF6	C12	French	MacCutcheon, Chigorin Variation
E4 E6 D4 D5 NC3 NF6 BG5 BB4 E5	C12	French	MacCutcheon, Advance Variation
E4 E6 D4 D5 NC3 NF6 BG5 BB4 EXD5 QXD5 BXF6 GXF6 QD2 QA5	C12	French	MacCutcheon, Bogolyubov Variation
E4 E6 D4 D5 NC3 NF6 BG5 BB4	C12	French	MacCutcheon Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 BXF6 BXF6 E5 BE7 QG4	C13	French	Classical, Anderssen-Richter Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 BXF6	C13	French	Classical, Anderssen Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NE4	C13	French	Classical, Tartakower Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NFD7 BXE7 QXE7 BD3	C14	French	Classical, Tarrasch Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NFD7 BXE7 QXE7 F4 O-O NF3 C5 QD2 NC6 O-O-O C4	C14	French	Classical, Stahlberg Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NFD7 BXE7 QXE7 F4	C14	French	Classical, Steinitz Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NFD7 BXE7 QXE7 NB5	C14	French	Classical, Alapin Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NFD7 BXE7 QXE7 QD2	C14	French	Classical, Rubinstein Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NFD7 BXE7 QXE7 QG4	C14	French	Classical, Pollock Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NFD7 BXE7 QXE7	C14	French	Classical Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NFD7 H4 A6	C13	French	Albin-Alekhine-Chatard attack, Maroczy Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NFD7 H4 C5	C13	French	Albin-Alekhine-Chatard attack, Breyer Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NFD7 H4 F6	C13	French	Albin-Alekhine-Chatard attack, Teichmann Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NFD7 H4 O-O	C13	French	Albin-Alekhine-Chatard attack, Spielmann Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NFD7 H4	C13	French	Albin-Alekhine-Chatard attack
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NG8 BE3 B6	C13	French	Classical, Frankfurt Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7 E5 NG8	C13	French	Classical, Vistaneckis (Nimzo) Variation
E4 E6 D4 D5 NC3 NF6 BG5 BE7	C13	French	Classical
E4 E6 D4 D5 NC3 NF6 BG5 DXE4	C11	French	Burn Variation
E4 E6 D4 D5 NC3 NF6 E5 NFD7 F4 C5 DXC5 BXC5 QG4	C11	French	Steinitz, Bradford attack
E4 E6 D4 D5 NC3 NF6 E5 NFD7 F4 C5 DXC5 NC6 A3 BXC5 QG4 O-O NF3 F6	C11	French	Steinitz, Brodsky-Jones Variation
E4 E6 D4 D5 NC3 NF6 E5 NFD7 F4 C5 DXC5 NC6	C11	French	Steinitz Variation
E4 E6 D4 D5 NC3 NF6 E5 NFD7 F4 C5 NF3 NC6 BE3	C11	French	Steinitz, Boleslavsky Variation
E4 E6 D4 D5 NC3 NF6 E5 NFD7 F4 C5 NF3	C11	French	Steinitz Variation
E4 E6 D4 D5 NC3 NF6 E5 NFD7 QG4	C11	French	Steinitz, Gledhill attack
E4 E6 D4 D5 NC3 NF6 E5	C11	French	Steinitz Variation
E4 E6 D4 D5 NC3 NF6	C11	French defense	Frere (Becker) Variation
E4 E6 D4 D5 NC3	C10	French	Paulsen Variation
E4 E6 D4 D5 ND2 C5 EXD5 EXD5 NGF3 NC6	C09	French	Tarrasch, Open Variation , Main line
E4 E6 D4 D5 ND2 C5 EXD5 EXD5	C08	French	Tarrasch, Open, 4.ed ed
E4 E6 D4 D5 ND2 C5 EXD5 QXD5 NGF3 CXD4 BC4 QD8	C07	French	Tarrasch, Eliskases Variation
E4 E6 D4 D5 ND2 C5	C07	French	Tarrasch, Open Variation
E4 E6 D4 D5 ND2 F5	C03	French	Tarrasch, Haberditz Variation
E4 E6 D4 D5 ND2 NC6 NGF3 NF6	C04	French	Tarrasch, Guimard Main line
E4 E6 D4 D5 ND2 NC6	C03	French	Tarrasch, Guimard Variation
E4 E6 D4 D5 ND2 NF6 E5 NFD7 BD3 C5 C3 B6	C05	French	Tarrasch, Botvinnik Variation
E4 E6 D4 D5 ND2 NF6 E5 NFD7 BD3 C5 C3 NC6 NE2 CXD4 CXD4 NB6	C06	French	Tarrasch, Leningrad Variation
E4 E6 D4 D5 ND2 NF6 E5 NFD7 BD3 C5 C3 NC6 NE2 CXD4 CXD4	C06	French	Tarrasch, Closed Variation , Main line
E4 E6 D4 D5 ND2 NF6 E5 NFD7 BD3 C5 C3 NC6	C05	French	Tarrasch, Closed Variation
E4 E6 D4 D5 ND2 NF6	C05	French	Tarrasch, Closed Variation
E4 E6 D4 D5 ND2	C03	French	Tarrasch
E4 E6 D4 D5	C00	French defense	Reversed Philidor formation
E4 E6 D4 D6	C00	Lengfellner system	Reversed Philidor formation
E4 E6 D4	C00	French defense	Reversed Philidor formation
E4 E6 E5	C00	French	Steinitz attack
E4 E6 F4	C00	French	Labourdonnais Variation
E4 E6 NC3 D5 F4	C00	French	Pelikan Variation
E4 E6 NC3 D5 NF3	C00	French	Two knights Variation
E4 E6 NC3	C00	French defense	Wing gambit
E4 E6 NF3 D5 E5 C5 B4	C00	French	Wing gambit
E4 E6 NF3	C00	French defense	Labourdonnais Variation
E4 E6 QE2	C00	French	Chigorin Variation
E4 E6	C00	French defense	Najdorf, 7...Be7 Main line
E4 F5	B00	Fred	Ilyin-Genevsky Variation with b3
E4 F6 D4 KF7	B00	Fried fox defense	Ilyin-Genevsky Variation with b3
E4 F6	B00	Barnes defense	Ilyin-Genevsky Variation with b3
E4 G5	B00	Reversed Grob (Borg/Basman defense/macho Grob)	Ilyin-Genevsky Variation with b3
E4 G6 D4 BG7 F4	B06	Robatsch defense	Three pawns attack
E4 G6 D4 BG7 NC3 C6 F4 D5 E5 H5	B06	Robatsch defense	Gurgenidze Variation
E4 G6 D4 BG7 NC3 D6 F4	B06	Robatsch defense	Pseudo-Austrian attack
E4 G6 D4 BG7 NC3 D6 NF3 C6	B06	Robatsch defense	Two knights, Suttles Variation
E4 G6 D4 BG7 NC3 D6 NF3	B06	Robatsch defense	Two knights Variation
E4 G6 D4 BG7 NC3 D6	B06	Robatsch (Modern) defense	Gurgenidze Variation
E4 G6 D4 BG7 NC3	B06	Robatsch defense	Three pawns attack
E4 G6 D4 BG7 NF3 D6 C3	B07	Robatsch defense	Geller's system
E4 G6 D4 BG7 NF3 D6 C4 BG4	A41	Robatsch defense	Rossolimo Variation
E4 G6 D4 BG7	B06	Robatsch (Modern) defense	Modern, Vitolins attack
E4 G6 D4 NF6 E5 NH5 G4 NG7	B06	Norwegian defense	Modern, Vitolins attack
E4 G6	B06	Robatsch (Modern) defense	Modern, Vitolins attack
E4 H6	B00	Carr's defense	Ilyin-Genevsky Variation with b3
E4 NA6	B00	Lemming defense	Ilyin-Genevsky Variation with b3
E4 NC6 B4 NXB4 C3 NC6 D4	B00	KP	Nimzovich defense, Wheeler gambit
E4 NC6 D4 D5 EXD5 QXD5 NC3	B00	KP	Nimzovich defense, Marshall gambit
E4 NC6 D4 D5 NC3	B00	KP	Nimzovich defense, Bogolyubov Variation
E4 NC6 D4 F6	B00	KP	Neo-Mongoloid defense
E4 NC6 D4	B00	KP	Nimzovich defense
E4 NC6 NF3 F5	B00	KP	Colorado counter
E4 NC6 NF3	B00	KP	Nimzovich defense
E4 NC6	B00	KP	Nimzovich defense
E4 NF6 BC4	B02	Alekhine's defense	Krejcik Variation
E4 NF6 D3	B02	Alekhine's defense	Maroczy Variation
E4 NF6 E5 ND5 B3	B02	Alekhine's defense	Welling Variation
E4 NF6 E5 ND5 BC4 NB6 BB3 C5 D3	B02	Alekhine's defense	Kmoch Variation
E4 NF6 E5 ND5 C4 NB6 B3	B02	Alekhine's defense	Steiner Variation
E4 NF6 E5 ND5 C4 NB6 C5 ND5 BC4 E6 NC3 D6	B02	Alekhine's defense	Two pawns' attack, Mikenas Variation
E4 NF6 E5 ND5 C4 NB6 C5	B02	Alekhine's defense	Two pawns' (Lasker's) attack
E4 NF6 E5 ND5 C4	B02	Alekhine's defense	Welling Variation
E4 NF6 E5 ND5 D4 B5	B03	Alekhine's defense	O'Sullivan gambit
E4 NF6 E5 ND5 D4 D6 BC4	B03	Alekhine's defense	Balogh Variation
E4 NF6 E5 ND5 D4 D6 C4 NB6 EXD6 CXD6 NF3 G6 BE2 BG7 O-O O-O H3 NC6 NC3 BF5 BF4	B03	Alekhine's defense	Exchange, Karpov Variation
E4 NF6 E5 ND5 D4 D6 C4 NB6 EXD6	B03	Alekhine's defense	Exchange Variation
E4 NF6 E5 ND5 D4 D6 C4 NB6 F4 BF5	B03	Alekhine's defense	Four pawns attack, Trifunovic Variation
E4 NF6 E5 ND5 D4 D6 C4 NB6 F4 DXE5 FXE5 BF5 NC3 E6 NF3 BE7 BE2 O-O O-O F6	B03	Alekhine's defense	Four pawns attack, Korchnoi Variation
E4 NF6 E5 ND5 D4 D6 C4 NB6 F4 DXE5 FXE5 NC6 BE3 BF5 NC3 E6 NF3 QD7 BE2 O-O-O O-O BE7	B03	Alekhine's defense	Four pawns attack, Tartakower Variation
E4 NF6 E5 ND5 D4 D6 C4 NB6 F4 DXE5 FXE5 NC6 BE3	B03	Alekhine's defense	Four pawns attack, 7.Be3
E4 NF6 E5 ND5 D4 D6 C4 NB6 F4 DXE5 FXE5 NC6 NF3 BG4 E6 FXE6 C5	B03	Alekhine's defense	Four pawns attack, Ilyin-Genevsky var.
E4 NF6 E5 ND5 D4 D6 C4 NB6 F4 DXE5 FXE5 NC6	B03	Alekhine's defense	Four pawns attack, 6...Nc6
E4 NF6 E5 ND5 D4 D6 C4 NB6 F4 G5	B03	Alekhine's defense	Four pawns attack, Planinc Variation
E4 NF6 E5 ND5 D4 D6 C4 NB6 F4 G6	B03	Alekhine's defense	Four pawns attack, Fianchetto Variation
E4 NF6 E5 ND5 D4 D6 C4 NB6 F4	B03	Alekhine's defense	Four pawns attack
E4 NF6 E5 ND5 D4 D6 C4	B03	Alekhine's defense	Balogh Variation
E4 NF6 E5 ND5 D4 D6 NF3 BG4 BE2 C6	B05	Alekhine's defense	Modern, Flohr Variation
E4 NF6 E5 ND5 D4 D6 NF3 BG4 C4 NB6 D5	B05	Alekhine's defense	Modern, Vitolins attack
E4 NF6 E5 ND5 D4 D6 NF3 BG4 C4	B05	Alekhine's defense	Modern, Alekhine Variation
E4 NF6 E5 ND5 D4 D6 NF3 BG4 H3	B05	Alekhine's defense	Modern, Panov Variation
E4 NF6 E5 ND5 D4 D6 NF3 BG4	B05	Alekhine's defense	Modern Variation , 4...Bg4
E4 NF6 E5 ND5 D4 D6 NF3 DXE5	B04	Alekhine's defense	Modern, Larsen Variation
E4 NF6 E5 ND5 D4 D6 NF3 G6 BC4 NB6 BB3 BG7 A4	B04	Alekhine's defense	Modern, Keres Variation
E4 NF6 E5 ND5 D4 D6 NF3 G6	B04	Alekhine's defense	Modern, Fianchetto Variation
E4 NF6 E5 ND5 D4 D6 NF3 NB6	B04	Alekhine's defense	Modern, Schmid Variation
E4 NF6 E5 ND5 D4 D6 NF3	B04	Alekhine's defense	Modern Variation
E4 NF6 E5 ND5 D4 D6	B03	Alekhine's defense	O'Sullivan gambit
E4 NF6 E5 ND5 D4	B03	Alekhine's defense	Two pawns' attack, Mikenas Variation
E4 NF6 E5 ND5 NC3	B02	Alekhine's defense	Saemisch attack
E4 NF6 E5 ND5	B02	Alekhine's defense	Brooklyn defense
E4 NF6 E5 NE4	B02	Alekhine's defense	Mokele Mbembe (Buecker) Variation
E4 NF6 E5 NG8	B02	Alekhine's defense	Brooklyn defense
E4 NF6 NC3 D5 E5 NFD7 E6	B02	Alekhine's defense	Spielmann Variation
E4 NF6 NC3 D5	B02	Alekhine's defense	Scandinavian Variation
E4 NF6	B02	Alekhine's defense	Richter Variation
E4 NH6 D4 G6 C4 F6	B00	Hippopotamus defense	Ilyin-Genevsky Variation with b3
E4	B00	King's pawn Opening	Ilyin-Genevsky Variation with b3
F3 E5 KF2	A00	Hammerschlag (Fried fox/Pork chop Opening)	Romford counter-gambit
F3	A00	Gedult's Opening	Romford counter-gambit
F4 D5 C4	A03	Mujannah Opening	Hobbs gambit
F4 D5 E4	A03	Bird's Opening	Williams gambit
F4 D5 NF3 NF6 E3 C5	A03	Bird's Opening	Lasker Variation
F4 D5	A03	Bird's Opening	Hobbs gambit
F4 E5 FXE5 D6 EXD6 BXD6 NF3 G5	A02	Bird	From gambit, Lasker Variation
F4 E5 FXE5 D6 EXD6 BXD6 NF3 NH6 D4	A02	Bird	From gambit, Lipke Variation
F4 E5	A02	Bird	From gambit
F4 F5 E4 FXE4 NC3 NF6 G4	A02	Bird's Opening, Swiss gambit	From gambit, Lipke Variation
F4 G5	A02	Bird	Hobbs gambit
F4	A02	Bird's Opening	Symmetrical Variation
G3 E5 NF3	A00	Benko's Opening	reversed Alekhine
G3 H5	A00	Lasker simul special	Outflank Variation
G3	A00	Benko's Opening	Outflank Variation
G4 D5 BG2 BXG4 C4 D4	A00	Grob	Romford counter-gambit
G4 D5 BG2 BXG4 C4	A00	Grob	Fritz gambit
G4 D5 BG2 C6 G5	A00	Grob	Spike attack
G4	A00	Grob's attack	reversed Alekhine
H3 E5 A3	A00	Global Opening	Romford counter-gambit
H3	A00	Clemenz (Mead's, Basman's or de Klerk's) Opening	Romford counter-gambit
H4	A00	Anti-Borg (Desprez) Opening	Romford counter-gambit
NA3	A00	Durkin's attack	Romford counter-gambit
NC3 C5 D4 CXD4 QXD4 NC6 QH4	A00	Novosibirsk Opening	Romford counter-gambit
NC3 E5 A3	A00	Battambang Opening	Romford counter-gambit
NC3 E5	A00	Dunst (Sleipner,Heinrichsen) Opening	Romford counter-gambit
NC3	A00	Dunst (Sleipner, Heinrichsen) Opening	Romford counter-gambit
NF3 D5 B3	A06	Reti	Nimzovich-Larsen attack
NF3 D5 B4	A06	Santasiere's folly	Old Indian attack
NF3 D5 C4 D4	A09	Reti	Advance Variation
NF3 D5 C4 DXC4 E3 BE6	A09	Reti accepted	Keres Variation
NF3 D5 C4 DXC4	A09	Reti accepted	Advance Variation
NF3 D5 C4	A09	Reti Opening	King's Indian attack, French Variation
NF3 D5 D3	A06	Reti	Old Indian attack
NF3 D5 E4	A06	Tennison (Lemberg, Zukertort) gambit	Old Indian attack
NF3 D5 G3 BG4 BG2 ND7	A07	Reti	King's Indian attack, Keres Variation
NF3 D5 G3 C5 BG2 NC6 O-O E6 D3 NF6 NBD2 BE7 E4 O-O RE1	A08	Reti	King's Indian attack, French Variation
NF3 D5 G3 C5 BG2	A08	Reti	King's Indian attack
NF3 D5 G3 C5	A07	Reti	King's Indian attack (with ...c5)
NF3 D5 G3 G6 BG2 BG7 O-O E5 D3 NE7	A07	Reti	King's Indian attack, Pachman system
NF3 D5 G3 G6	A07	Reti	King's Indian attack
NF3 D5 G3 NF6 BG2 C6 O-O BG4	A07	Reti	King's Indian attack, Yugoslav Variation
NF3 D5 G3	A07	Reti	King's Indian attack (Barcza system)
NF3 D5	A06	Reti Opening	King's Indian attack, Reti-Smyslov Variation
NF3 D6 E4 BG4	A04	Reti	Wade defense
NF3 D6	A04	Reti Opening	Lisitsin gambit deferred
NF3 F5 D3 NF6 E4	A04	Reti	Lisitsin gambit deferred
NF3 F5 E4	A04	Reti	Pirc-Lisitsin gambit
NF3 F5	A04	Reti v Dutch	Lasker Variation
NF3 G5	A04	Reti	Herrstroem gambit
NF3 NF6 G3 B5	A05	Reti	King's Indian attack, Spassky's Variation
NF3 NF6 G3 G6 B4	A05	Reti	King's Indian attack, Reti-Smyslov Variation
NF3 NF6 G3 G6	A05	Reti	King's Indian attack
NF3 NF6	A05	Reti Opening	Herrstroem gambit
NF3	A04	Reti Opening	Lasker Variation
NH3 D5 G3 E5 F4 BXH3 BXH3 EXF4	A00	Amar gambit	Romford counter-gambit
NH3	A00	Amar (Paris) Opening	Romford counter-gambit
