CCRL 40/4

Opening statistics

This page shows how many games in our database were played from various known openings. The table also shows average draw percentage and white score we observed in our games.

ECO	Opening	Number of games	Draws	White score
C44	Scotch, Goering gambit, Bardeleben variation	2	100.0%	50.0%
C57	Two knights defence, Pincus variation	2	100.0%	50.0%
D34	QGD, Tarrasch, Bogolyubov variation	2	100.0%	50.0%
C46	Three knights, Steinitz, Rosenthal variation	2	100.0%	50.0%
C51	Evans gambit, 5...Be7	2	100.0%	50.0%
C55	Two knights, Max Lange attack, Loman defence	1	100.0%	50.0%
D30	QGD, Spielmann variation	1	100.0%	50.0%
C40	Latvian, Fraser defence	1	100.0%	50.0%
C33	KGA, bishop's gambit, Cozio (Morphy) defence	1	100.0%	50.0%
B20	Sicilian, wing gambit, Marshall variation	1	100.0%	50.0%
C30	KGD, Norwalde variation	1	100.0%	50.0%
C29	Vienna gambit, Kaufmann variation	1	100.0%	50.0%
C48	Four knights, Spielmann variation	1	100.0%	50.0%
C39	KGA, Kieseritsky, Brentano defence, Kaplanek variation	1	100.0%	50.0%
C38	KGA, Philidor gambit	1	100.0%	50.0%
C20	KP, King's head opening	1	100.0%	50.0%
C44	Ponziani, Romanishin variation	1	100.0%	50.0%
C37	KGA, MacDonnell gambit	1	100.0%	50.0%
E23	Nimzo-Indian, Spielmann, San Remo variation	1	100.0%	50.0%
B05	Alekhine's defence, modern, Alekhine variation	1	100.0%	50.0%
C59	Two knights defence, Goering variation	1	100.0%	50.0%
E08	Catalan, closed, Zagoryansky variation	1	100.0%	50.0%
C44	Tayler opening	1	100.0%	50.0%
C10	French, Rubinstein, Capablanca line	1	100.0%	50.0%
C52	Evans gambit, Alapin-Steinitz variation	1	100.0%	50.0%
C15	French, Winawer, Alekhine gambit, Alatortsev variation	1	100.0%	50.0%
C12	French, MacCutcheon, Tartakower variation	1	100.0%	50.0%
C80	Ruy Lopez, open, Bernstein variation, Karpov gambit	14	85.7%	57.1%
C79	Ruy Lopez, Steinitz defence deferred, Lipnitsky variation	5	80.0%	40.0%
C45	Scotch, Tartakower variation	5	80.0%	60.0%
B34	Sicilian, accelerated fianchetto, exchange variation	4	75.0%	37.5%
C41	Philidor, Hanham, Delmar variation	4	75.0%	62.5%
B02	Alekhine's defence, Krejcik variation	4	75.0%	37.5%
D06	QGD, symmetrical (Austrian) defence	4	75.0%	62.5%
C67	Ruy Lopez, Berlin defence, Winawer attack	10	70.0%	45.0%
D52	QGD, Cambridge Springs defence	10	70.0%	55.0%
D68	QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)	9	66.7%	55.6%
C49	Four knights, symmetrical, Blake variation	6	66.7%	66.7%
B71	Sicilian, dragon, Levenfish; Flohr variation	3	66.7%	33.3%
C12	French, MacCutcheon, Duras variation	3	66.7%	66.7%
C48	Four knights, Bardeleben variation	3	66.7%	33.3%
B15	Caro-Kann, Rasa-Studier gambit	3	66.7%	66.7%
C33	KGA, Carrera (Basman) gambit	3	66.7%	33.3%
C46	Four knights, Schultze-Mueller gambit	3	66.7%	33.3%
D64	QGD, Orthodox defence, Rubinstein attack, Karlsbad variation	3	66.7%	33.3%
C67	Ruy Lopez, Berlin defence, Pillsbury variation	3	66.7%	33.3%
D32	QGD, Tarrasch defence, Marshall gambit	3	66.7%	66.7%
C14	French, classical, Stahlberg variation	3	66.7%	66.7%
C15	French, Winawer, Kondratiyev variation	3	66.7%	66.7%
D69	QGD, Orthodox defence, classical, 13.de	20	65.0%	47.5%
C81	Ruy Lopez, open, Howell attack, Ekstroem variation	10	60.0%	60.0%
C29	Vienna gambit, Steinitz variation	5	60.0%	50.0%
D21	QGA, Ericson variation	5	60.0%	50.0%
E78	King's Indian, Four pawns attack, with Be2 and Nf3	5	60.0%	50.0%
C00	French, Alapin variation	5	60.0%	50.0%
C11	French, Steinitz, Gledhill attack	5	60.0%	50.0%
A80	Dutch, Krejcik gambit	5	60.0%	50.0%
C51	Evans gambit, Cordel variation	14	57.1%	50.0%
A21	English, Keres variation	7	57.1%	57.1%
C53	Giuoco Piano, Anderssen variation	7	57.1%	28.6%
C80	Ruy Lopez, open, Riga variation	27	55.6%	57.4%
C67	Ruy Lopez, Berlin defence, Rio de Janeiro variation	9	55.6%	72.2%
A59	Benko gambit, 7.e4	9	55.6%	61.1%
D94	Gruenfeld with e3 Bd3	13	53.8%	50.0%
A28	English, Nenarokov variation	28	53.6%	51.8%
D52	QGD	46	52.2%	60.9%
D94	Gruenfeld, Opovcensky variation	78	51.3%	50.0%
D33	QGD, Tarrasch, Folkestone (Swedish) variation	26	50.0%	44.2%
A83	Dutch, Staunton gambit, Chigorin variation	20	50.0%	65.0%
A16	English, Anglo-Gruenfeld, Smyslov defense	18	50.0%	58.3%
D57	QGD, Lasker defence, Bernstein variation	14	50.0%	60.7%
E23	Nimzo-Indian, Spielmann, Karlsbad variation	12	50.0%	58.3%
C67	Ruy Lopez, Berlin defence, Rosenthal variation	10	50.0%	55.0%
B41	Sicilian, Kan, Maroczy bind - Bronstein variation	10	50.0%	65.0%
C21	Danish gambit, Soerensen defence	10	50.0%	65.0%
C42	Petrov, Damiano variation	10	50.0%	65.0%
C80	Ruy Lopez, open, Friess attack	8	50.0%	50.0%
C52	Evans gambit, Lasker defence	6	50.0%	58.3%
C70	Ruy Lopez, Cozio defence deferred	6	50.0%	58.3%
C41	Philidor, Philidor counter-gambit, Zukertort variation	6	50.0%	25.0%
A66	Benoni, pawn storm variation	6	50.0%	58.3%
A40	Queen's pawn, English defence	4	50.0%	50.0%
C68	Ruy Lopez, exchange, Romanovsky variation	4	50.0%	50.0%
C57	Two knights defence, Lolli attack	4	50.0%	75.0%
C41	Philidor, Nimzovich, Rellstab variation	4	50.0%	75.0%
C20	Alapin's opening	4	50.0%	50.0%
C53	Giuoco Piano, Tarrasch variation	4	50.0%	75.0%
C48	Four knights, Marshall variation	4	50.0%	50.0%
C44	Dresden opening	4	50.0%	25.0%
C12	French, MacCutcheon, Chigorin variation	4	50.0%	75.0%
C41	Philidor, Steinitz variation	4	50.0%	50.0%
B03	Alekhine's defence, O'Sullivan gambit	2	50.0%	75.0%
C27	Boden-Kieseritsky gambit, Lichtenhein defence	2	50.0%	25.0%
C31	KGD, Falkbeer, Nimzovich variation	2	50.0%	25.0%
C45	Scotch, Meitner variation	2	50.0%	25.0%
A52	Budapest, Alekhine variation	2	50.0%	75.0%
C56	Two knights defence, Canal variation	2	50.0%	25.0%
C13	French, Albin-Alekhine-Chatard attack, Teichmann variation	2	50.0%	75.0%
C32	KGD, Falkbeer, main line, 7...Bf5	2	50.0%	25.0%
B01	Scandinavian, Kiel variation	2	50.0%	25.0%
C20	KP, Mengarini's opening	2	50.0%	25.0%
A03	Bird's opening, Williams gambit	2	50.0%	25.0%
C60	Ruy Lopez, Nuernberg variation	2	50.0%	25.0%
C39	KGA, Kieseritsky, Paulsen defence	2	50.0%	25.0%
C37	KGA, Salvio gambit	2	50.0%	25.0%
C32	KGD, Falkbeer, Reti variation	2	50.0%	25.0%
A47	Queen's Indian, Marienbad system, Berg variation	2	50.0%	25.0%
C49	Four knights, symmetrical, Tarrasch variation	2	50.0%	75.0%
E72	King's Indian, Pomar system	2	50.0%	25.0%
A57	Benko gambit, Nescafe Frappe attack	2	50.0%	25.0%
C41	Philidor, Nimzovich variation	2	50.0%	25.0%
C44	Ponziani counter-gambit, Cordel variation	2	50.0%	75.0%
C55	Giuoco piano	2	50.0%	25.0%
C67	Ruy Lopez, open Berlin defence, Showalter variation	2	50.0%	25.0%
C52	Evans gambit, compromised defence	2	50.0%	75.0%
C42	Petrov, classical attack, Tarrasch variation	2	50.0%	75.0%
C12	French, MacCutcheon, advance variation	2	50.0%	75.0%
C23	Bishop's opening, Lewis gambit	2	50.0%	25.0%
A43	Old Benoni, Schmid's system	2	50.0%	75.0%
D67	QGD, Orthodox defence, Bd3 line, Alekhine variation	137	48.9%	59.5%
D60	QGD, Orthodox defence, Botvinnik variation	45	48.9%	55.6%
C49	Four knights, Nimzovich (Paulsen) variation	39	48.7%	55.1%
C48	Four knights, Rubinstein counter-gambit, exchange variation	60	48.3%	47.5%
D64	QGD, Orthodox defence, Rubinstein attack (with Rc1)	81	48.1%	54.9%
D86	Gruenfeld, exchange, Simagin's lesser variation	25	48.0%	64.0%
B01	Scandinavian, Icelandic gambit	25	48.0%	56.0%
C42	Petrov, classical attack, Mason variation	25	48.0%	68.0%
D44	QGD semi-Slav, 5.Bg5 dc	84	47.6%	50.0%
D75	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc3	61	47.5%	51.6%
C21	Centre game	171	47.4%	65.8%
A44	Old Benoni defence	17	47.1%	58.8%
D90	Gruenfeld, Flohr variation	32	46.9%	54.7%
C68	Ruy Lopez, exchange, Alekhine variation	15	46.7%	50.0%
C47	Four knights, Scotch, Krause variation	28	46.4%	62.5%
D14	QGD Slav, exchange, Trifunovic variation	54	46.3%	58.3%
D88	Gruenfeld, Spassky variation, main line, 10...cd, 11.cd	119	46.2%	57.6%
E51	Nimzo-Indian, 4.e3, Ragozin variation	26	46.2%	53.8%
A16	English, Anglo-Gruenfeld defense	26	46.2%	53.8%
B23	Sicilian, Grand Prix attack, Schofman variation	13	46.2%	46.2%
C45	Scotch, Horwitz attack	13	46.2%	53.8%
C07	French, Tarrasch, Eliskases variation	13	46.2%	53.8%
A42	Modern defence, Averbakh system, Kotov variation	13	46.2%	61.5%
D59	QGD, Tartakower variation	159	45.9%	41.2%
E92	King's Indian, Andersson variation	171	45.6%	50.9%
C94	Ruy Lopez, closed, Breyer defence	64	45.3%	60.2%
C13	French, Albin-Alekhine-Chatard attack, Breyer variation	42	45.2%	53.6%
D64	QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation	51	45.1%	48.0%
D10	QGD Slav defence, Alekhine variation	51	45.1%	44.1%
C49	Four knights	20	45.0%	57.5%
E79	King's Indian, Four pawns attack, main line	103	44.7%	57.3%
D62	QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)	204	44.6%	52.2%
A04	Reti, Pirc-Lisitsin gambit	18	44.4%	61.1%
C83	Ruy Lopez, open, 9...Be7, 10.Re1	18	44.4%	61.1%
B15	Caro-Kann, Alekhine gambit	9	44.4%	55.6%
E37	Nimzo-Indian, classical, San Remo variation	9	44.4%	33.3%
A18	English, Mikenas-Carls variation	9	44.4%	55.6%
C44	Scotch gambit, Benima defence	9	44.4%	55.6%
A38	English, symmetrical, main line with b3	9	44.4%	55.6%
C58	Two knights defence, Kieseritsky variation	9	44.4%	33.3%
D31	QGD, semi-Slav, Koomen variation	9	44.4%	66.7%
D22	QGA, Alekhine defence, Alatortsev variation	9	44.4%	77.8%
D55	QGD, Petrosian variation	394	44.4%	54.7%
A97	Dutch, Ilyin-Genevsky, Winter variation	97	44.3%	65.5%
C67	Ruy Lopez, open Berlin defence, 5...Be7	34	44.1%	54.4%
D71	Neo-Gruenfeld, 5.cd	107	43.9%	52.8%
D67	QGD, Orthodox defence, Bd3 line	41	43.9%	51.2%
A82	Dutch, Staunton gambit	16	43.8%	53.1%
C48	Four knights, Rubinstein counter-gambit, Henneberger variation	16	43.8%	59.4%
A01	Nimzovich-Larsen attack, English variation	23	43.5%	47.8%
D34	QGD, Tarrasch, Reti variation	23	43.5%	65.2%
C41	Philidor, Nimzovich, Sozin variation	23	43.5%	56.5%
B98	Sicilian, Najdorf, Browne variation	53	43.4%	61.3%
D99	Gruenfeld defence, Smyslov, Yugoslav variation	60	43.3%	68.3%
E53	Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd7	30	43.3%	61.7%
D81	Gruenfeld, Russian variation	44	43.2%	51.1%
A05	Reti, King's Indian attack, Reti-Smyslov variation	35	42.9%	64.3%
D97	Gruenfeld, Russian variation with e4	21	42.9%	59.5%
C27	Vienna game	21	42.9%	26.2%
C41	Philidor, Philidor counter-gambit	7	42.9%	50.0%
E21	Nimzo-Indian, three knights, Korchnoi variation	7	42.9%	64.3%
C45	Scotch, Blackburne attack	7	42.9%	64.3%
B44	Sicilian, Szen variation, Dely-Kasparov gambit	7	42.9%	64.3%
A21	English, Smyslov defence	7	42.9%	50.0%
C66	Ruy Lopez, closed Berlin defence, Showalter variation	47	42.6%	57.4%
E10	Dzindzikhashvili defence	40	42.5%	41.3%
D28	QGA, classical, 7.Qe2	40	42.5%	53.8%
D93	Gruenfeld with Bf4 e3	283	42.4%	59.4%
B10	Caro-Kann, anti-anti-Caro-Kann defence	736	42.4%	53.3%
D16	QGD Slav, Smyslov variation	26	42.3%	59.6%
D95	Gruenfeld with e3 & Qb3	45	42.2%	43.3%
D66	QGD, Orthodox defence, Bd3 line	140	42.1%	56.8%
C34	KGA, Bonsch-Osmolovsky variation	19	42.1%	52.6%
C65	Ruy Lopez, Berlin defence, Nyholm attack	69	42.0%	55.8%
B52	Sicilian, Canal-Sokolsky attack, Sokolsky variation	391	41.9%	55.5%
C42	Petrov, Kaufmann attack	62	41.9%	50.0%
D83	Gruenfeld, Gruenfeld gambit, Capablanca variation	31	41.9%	50.0%
B09	Pirc, Austrian attack, dragon formation	397	41.8%	56.4%
B38	Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3	2711	41.8%	56.0%
E29	Nimzo-Indian, Saemisch, Capablanca variation	60	41.7%	44.2%
D51	QGD, 4.Bg5 Nbd7	36	41.7%	54.2%
A92	Dutch defence	36	41.7%	62.5%
D70	Neo-Gruenfeld (Kemeri) defence	24	41.7%	50.0%
B13	Caro-Kann, Panov-Botvinnik, Herzog defence	12	41.7%	45.8%
A01	Nimzovich-Larsen attack, symmetrical variation	12	41.7%	62.5%
C39	KGA, Kieseritsky, Rice gambit	12	41.7%	20.8%
D55	QGD, Neo-orthodox variation, 7.Bh4	106	41.5%	52.8%
C83	Ruy Lopez, open, classical defence	111	41.4%	59.5%
B59	Sicilian, Boleslavsky variation, 7.Nb3	87	41.4%	52.9%
D41	QGD, Semi-Tarrasch with e3	109	41.3%	48.2%
C65	Ruy Lopez, Berlin defence, Beverwijk variation	165	41.2%	49.7%
A92	Dutch defence, Alekhine variation	51	41.2%	63.7%
A12	English, Torre defensive system	34	41.2%	38.2%
D40	QGD, Semi-Tarrasch defence, Pillsbury variation	17	41.2%	44.1%
D68	QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)	95	41.1%	55.3%
C49	Four knights, double Ruy Lopez	166	41.0%	54.8%
C82	Ruy Lopez, open, Motzko attack	44	40.9%	52.3%
E29	Nimzo-Indian, Saemisch, main line	27	40.7%	53.7%
D49	QGD semi-Slav, Meran, Rabinovich variation	145	40.7%	60.3%
D94	Gruenfeld, Smyslov defence	111	40.5%	56.3%
C57	Two knights defence, Fritz, Gruber variation	42	40.5%	51.2%
D85	Gruenfeld, modern exchange variation	3490	40.3%	55.7%
D22	QGA, Alekhine defence	67	40.3%	54.5%
B05	Alekhine's defence, modern, Flohr variation	72	40.3%	59.0%
D49	QGD semi-Slav, Meran, Sozin variation	313	40.3%	47.6%
D66	QGD, Orthodox defence, Bd3 line, fianchetto variation	15	40.0%	60.0%
C47	Four knights, Scotch variation	15	40.0%	66.7%
B02	Alekhine's defence, Maroczy variation	15	40.0%	53.3%
B24	Sicilian, closed, Smyslov variation	5	40.0%	60.0%
B12	Caro-Masi defence	5	40.0%	60.0%
A84	Dutch, Staunton gambit deferred	5	40.0%	20.0%
A82	Dutch, Staunton gambit, Tartakower variation	5	40.0%	60.0%
C39	KGA, Kieseritsky, Salvio (Rosenthal) defence	5	40.0%	40.0%
C23	Bishop's opening, Philidor variation	5	40.0%	40.0%
E17	Queen's Indian, anti-Queen's Indian system	148	39.9%	53.7%
C42	Petrov, Nimzovich attack	246	39.8%	52.4%
B36	Sicilian, accelerated fianchetto, Maroczy bind	954	39.8%	56.6%
D55	QGD, Neo-orthodox variation, 7.Bxf6	93	39.8%	56.5%
C45	Scotch, Schmidt variation	285	39.6%	45.4%
B36	Sicilian, accelerated fianchetto, Gurgenidze variation	260	39.6%	56.0%
C81	Ruy Lopez, open, Howell attack	48	39.6%	61.5%
D28	QGA, classical, 7...b5	86	39.5%	50.0%
C89	Ruy Lopez, Marshall counter-attack, 11...c6	119	39.5%	41.6%
D34	QGD, Tarrasch, Prague variation, 9.Bg5	466	39.5%	59.9%
C68	Ruy Lopez, exchange, Keres variation	104	39.4%	48.6%
B37	Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg7	221	39.4%	54.1%
E02	Catalan, open, 5.Qa4	61	39.3%	57.4%
A94	Dutch, stonewall with Ba3	84	39.3%	55.4%
C23	Bishop's opening, Philidor counter-attack	28	39.3%	69.6%
A28	English, four knights, Nimzovich variation	130	39.2%	54.2%
B13	Caro-Kann, Panov-Botvinnik, normal variation	92	39.1%	55.4%
E17	Queen's Indian, 5.Bg2 Be7	69	39.1%	52.9%
A13	English, Romanishin gambit	69	39.1%	54.3%
D16	QGD Slav, Soultanbeieff variation	41	39.0%	68.3%
B14	Caro-Kann, Panov-Botvinnik attack, 5...g6	159	39.0%	62.3%
D87	Gruenfeld, exchange, Seville variation	126	38.9%	62.3%
C66	Ruy Lopez, Berlin defence, hedgehog variation	72	38.9%	47.2%
B40	Sicilian, Pin, Koch variation	18	38.9%	47.2%
C69	Ruy Lopez, exchange, Gligoric variation	301	38.9%	56.6%
D85	Gruenfeld, exchange variation	775	38.8%	54.8%
C67	Ruy Lopez, Berlin defence, open variation	1480	38.7%	52.3%
D30	QGD, Hastings variation	132	38.6%	46.6%
C45	Scotch, Potter variation	44	38.6%	51.1%
D77	Neo-Gruenfeld, 6.O-O	422	38.6%	54.9%
C75	Ruy Lopez, modern Steinitz defence, Rubinstein variation	57	38.6%	57.9%
C42	Petrov three knights game	127	38.6%	58.7%
D74	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O	109	38.5%	56.0%
A38	English, symmetrical, main line with d3	39	38.5%	47.4%
B03	Alekhine's defence, four pawns attack, 7.Be3	39	38.5%	65.4%
C67	Ruy Lopez, Berlin defence, Minckwitz variation	13	38.5%	65.4%
C53	Giuoco Piano, close variation	13	38.5%	65.4%
D79	Neo-Gruenfeld, 6.O-O, main line	268	38.4%	53.9%
B73	Sicilian, dragon, classical, Richter variation	159	38.4%	50.0%
C36	KGA, Abbazia defence, modern variation	34	38.2%	51.5%
E34	Nimzo-Indian, classical, Noa variation	335	38.2%	53.7%
B08	Pirc, classical, h3 system	207	38.2%	56.8%
D57	QGD, Lasker defence, main line	21	38.1%	52.4%
C09	French, Tarrasch, open variation, main line	1600	38.1%	55.9%
D76	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6	276	38.0%	56.7%
D26	QGA, classical variation	426	38.0%	50.7%
A30	English, symmetrical, hedgehog, flexible formation	263	38.0%	56.7%
D17	QGD Slav, Czech defence	171	38.0%	49.4%
A07	Reti, King's Indian attack, Pachman system	50	38.0%	47.0%
B13	Caro-Kann, exchange, Rubinstein variation	58	37.9%	63.8%
C58	Two knights defence	29	37.9%	60.3%
C46	Four knights, Gunsberg variation	29	37.9%	43.1%
B28	Sicilian, O'Kelly variation	111	37.8%	54.1%
C42	Petrov, Cozio (Lasker) attack	164	37.8%	53.0%
B53	Sicilian, Chekhover variation	329	37.7%	49.2%
A14	English, Neo-Catalan declined	353	37.7%	49.4%
A85	Dutch with c4 & Nc3	146	37.7%	57.2%
E47	Nimzo-Indian, 4.e3 O-O, 5.Bd3	453	37.5%	56.7%
A07	Reti, King's Indian attack, Keres variation	264	37.5%	52.5%
B85	Sicilian, Scheveningen, classical	200	37.5%	53.3%
C66	Ruy Lopez, closed Berlin defence, Wolf variation	48	37.5%	58.3%
C41	Philidor, Larsen variation	16	37.5%	68.8%
C60	Ruy Lopez, Cozio defence, Paulsen variation	8	37.5%	56.3%
B72	Sicilian, dragon, classical, Grigoriev variation	8	37.5%	56.3%
C65	Ruy Lopez, Berlin defence, Duras variation	8	37.5%	56.3%
E03	Catalan, open, 5.Qa4 Nbd7, 6.Qxc4	8	37.5%	43.8%
C34	King's knight's gambit	8	37.5%	31.3%
D01	Richter-Veresov attack, Veresov variation	8	37.5%	56.3%
D47	QGD semi-Slav, Meran variation	955	37.5%	51.5%
D92	Gruenfeld, 5.Bf4	452	37.4%	55.4%
E16	Queen's Indian, Capablanca variation	177	37.3%	54.2%
B35	Sicilian, accelerated fianchetto, modern variation with Bc4	2818	37.3%	52.9%
B23	Sicilian, closed, Korchnoi variation	43	37.2%	37.2%
E01	Catalan, closed	242	37.2%	54.5%
A17	English opening	97	37.1%	52.6%
B85	Sicilian, Scheveningen, classical main line	572	37.1%	53.7%
D05	Colle system	73	37.0%	55.5%
D63	QGD, Orthodox defence, 7.Rc1	92	37.0%	52.2%
E53	Nimzo-Indian, 4.e3, main line with ...c5	804	36.9%	52.7%
E06	Catalan, closed, 5.Nf3	1993	36.9%	53.3%
C08	French, Tarrasch, open, 4.ed ed	1243	36.9%	52.7%
E15	Queen's Indian, 4.g3 Bb7	103	36.9%	53.4%
D16	QGD Slav, Steiner variation	141	36.9%	54.6%
A46	Queen's pawn, Yusupov-Rubinstein system	301	36.9%	54.7%
E62	King's Indian, fianchetto, Larsen system	190	36.8%	53.7%
C56	Two knights defence	38	36.8%	47.4%
B71	Sicilian, dragon, Levenfish variation	19	36.8%	44.7%
E09	Catalan, closed, main line	193	36.8%	56.2%
A34	English, symmetrical, Rubinstein system	98	36.7%	59.2%
B27	Sicilian, Katalimov variation	30	36.7%	55.0%
A05	Reti, King's Indian attack, Spassky's variation	243	36.6%	54.1%
C15	French, Winawer, Alekhine gambit, Kan variation	82	36.6%	50.0%
D97	Gruenfeld, Russian, Byrne (Simagin) variation	134	36.6%	54.1%
A05	Reti, King's Indian attack	563	36.4%	54.3%
C99	Ruy Lopez, closed, Chigorin, 12...c5d4	2938	36.4%	59.1%
C47	Four knights, Scotch, 4...exd4	473	36.4%	47.1%
D19	QGD Slav, Dutch variation, main line	242	36.4%	52.5%
C42	Petrov, classical attack, close variation	77	36.4%	58.4%
C45	Scotch, Romanishin variation	11	36.4%	45.5%
D48	QGD semi-Slav, Meran, Pirc variation	11	36.4%	45.5%
C66	Ruy Lopez, closed Berlin defence, Bernstein variation	11	36.4%	54.5%
C44	Inverted Hanham	11	36.4%	27.3%
C40	Greco defence	11	36.4%	54.5%
E27	Nimzo-Indian, Saemisch variation	11	36.4%	36.4%
D54	QGD, Anti-neo-orthodox variation	11	36.4%	54.5%
C80	Ruy Lopez, open, Tartakower variation	11	36.4%	72.7%
E32	Nimzo-Indian, classical variation	6322	36.3%	52.1%
D89	Gruenfeld, Spassky variation, main line, 13.Bd3	157	36.3%	52.5%
A14	English, Symmetrical, Keres defence	466	36.3%	58.7%
D86	Gruenfeld, exchange, classical variation	458	36.2%	52.6%
C60	Ruy Lopez, fianchetto (Smyslov/Barnes) defence	105	36.2%	55.2%
A33	English, symmetrical variation	761	36.1%	51.7%
E55	Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation	2117	36.1%	53.8%
D97	Gruenfeld, Russian, Prins variation	742	36.1%	54.3%
C26	Vienna, Paulsen-Mieses variation	144	36.1%	52.1%
C12	French, MacCutcheon variation	97	36.1%	46.9%
D68	QGD, Orthodox defence, classical variation	147	36.1%	55.4%
C84	Ruy Lopez, closed defence	522	36.0%	51.9%
B83	Sicilian, modern Scheveningen, main line	611	36.0%	51.6%
B32	Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation	618	35.9%	57.0%
A54	Old Indian, Ukrainian variation	39	35.9%	59.0%
A88	Dutch, Leningrad, main variation with c6	715	35.8%	58.2%
B58	Sicilian, classical	193	35.8%	43.8%
C93	Ruy Lopez, closed, Smyslov defence	207	35.7%	61.8%
B04	Alekhine's defence, modern, fianchetto variation	224	35.7%	61.2%
B04	Alekhine's defence, modern, Keres variation	56	35.7%	62.5%
B18	Caro-Kann, classical, Flohr variation	28	35.7%	53.6%
D33	QGD, Tarrasch, Wagner variation	28	35.7%	60.7%
B07	Pirc, Holmov system	14	35.7%	53.6%
A12	English, Bled variation	14	35.7%	46.4%
E04	Catalan, open, 5.Nf3	3512	35.7%	52.7%
A34	English, symmetrical, three knights system	597	35.7%	51.5%
D27	QGA, classical, 6...a6	1433	35.7%	52.2%
D26	QGA, classical variation, 6.O-O	101	35.6%	54.5%
C92	Ruy Lopez, closed, 9.h3	289	35.6%	54.8%
E54	Nimzo-Indian, 4.e3, Gligoric system with 7...dc	388	35.6%	52.1%
C85	Ruy Lopez, Exchange variation doubly deferred (DERLD)	568	35.6%	50.5%
D27	QGA, classical, Rubinstein variation	1859	35.6%	54.5%
D94	Gruenfeld, 5.e3	391	35.5%	58.2%
C42	Petrov, classical attack, Chigorin variation	377	35.5%	53.3%
C96	Ruy Lopez, closed, Keres (...Nd7) defence	279	35.5%	65.4%
C48	Four knights, Spanish, classical defence	62	35.5%	51.6%
A59	Benko gambit	31	35.5%	59.7%
C80	Ruy Lopez, open, Bernstein variation	468	35.5%	62.4%
B34	Sicilian, accelerated fianchetto, modern variation	361	35.5%	53.5%
C77	Ruy Lopez, Morphy defence	409	35.5%	56.1%
C41	Philidor, Improved Hanham variation	412	35.4%	54.9%
C07	French, Tarrasch, open variation	2456	35.4%	51.8%
D06	QGD, Marshall defence	144	35.4%	60.8%
B63	Sicilian, Richter-Rauzer, Rauzer attack	144	35.4%	55.9%
D56	QGD, Lasker defence, Teichmann variation	48	35.4%	55.2%
E45	Nimzo-Indian, 4.e3, Bronstein (Byrne) variation	325	35.4%	54.0%
C89	Ruy Lopez, Marshall, main line, 14...Qh3	65	35.4%	54.6%
E20	Nimzo-Indian, Romanishin-Kasparov (Steiner) system	277	35.4%	47.7%
B22	Sicilian, Alapin's variation (2.c3)	3986	35.3%	53.2%
A28	English, four knights, Romanishin variation	759	35.3%	51.9%
E25	Nimzo-Indian, Saemisch variation	51	35.3%	49.0%
A52	Budapest, Adler variation	34	35.3%	55.9%
C20	King's pawn game	17	35.3%	47.1%
D22	QGA, Haberditz variation	17	35.3%	58.8%
C25	Vienna game, Max Lange defence	17	35.3%	41.2%
B15	Caro-Kann, Gurgenidze system	207	35.3%	54.8%
B74	Sicilian, dragon, classical, 9.Nb3	156	35.3%	53.5%
E08	Catalan, closed, Qc2 & b3	176	35.2%	55.1%
C89	Ruy Lopez, Marshall, main line, 12.d2d4	159	35.2%	47.8%
B74	Sicilian, dragon, classical, Reti-Tartakower variation	179	35.2%	54.5%
E56	Nimzo-Indian, 4.e3, main line with 7...Nc6	108	35.2%	46.3%
A69	Benoni, four pawns attack, main line	54	35.2%	32.4%
D23	Queen's gambit accepted	128	35.2%	42.6%
C82	Ruy Lopez, open, St. Petersburg variation	148	35.1%	62.2%
D53	QGD, 4.Bg5 Be7	94	35.1%	63.3%
E67	King's Indian, fianchetto, classical variation	368	35.1%	53.4%
A22	English, Bremen, reverse dragon	485	35.1%	49.9%
A28	English, four knights, Capablanca variation	214	35.0%	52.1%
B15	Caro-Kann, Forgacs variation	40	35.0%	50.0%
A63	Benoni, fianchetto, 9...Nbd7	40	35.0%	60.0%
C70	Ruy Lopez	40	35.0%	60.0%
D09	QGD, Albin counter-gambit, 5.g3	20	35.0%	62.5%
D41	QGD, Semi-Tarrasch, 5.cd	375	34.9%	56.9%
A08	Reti, King's Indian attack, French variation	613	34.9%	52.5%
C49	Four knights, symmetrical, Metger unpin	387	34.9%	53.1%
A28	English, four knights, 4.e3	344	34.9%	54.9%
A28	English, four knights, Stean variation	86	34.9%	53.5%
C61	Ruy Lopez, Bird's defence	43	34.9%	59.3%
B97	Sicilian, Najdorf, Poisoned pawn variation	2090	34.9%	46.8%
B06	Robatsch defence, Two knights, Suttles variation	2261	34.9%	59.6%
C24	Bishop's opening, Berlin defence	264	34.8%	56.4%
D82	Gruenfeld, 4.Bf4	198	34.8%	55.8%
B14	Caro-Kann, Panov-Botvinnik attack, 5...e6	1451	34.8%	55.1%
E48	Nimzo-Indian, 4.e3 O-O, 5.Bd3 d5	319	34.8%	50.6%
B27	Sicilian, Hungarian variation	10605	34.8%	57.3%
E26	Nimzo-Indian, Saemisch variation	23	34.8%	47.8%
C82	Ruy Lopez, open, Italian variation	23	34.8%	60.9%
D96	Gruenfeld, Russian variation	118	34.7%	52.1%
D31	QGD, semi-Slav	426	34.7%	54.7%
C92	Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation	291	34.7%	65.1%
E18	Queen's Indian, old main line, 7.Nc3	1314	34.7%	57.2%
A41	Robatsch defence, Rossolimo variation	49	34.7%	52.0%
D02	Queen's pawn game, Krause variation	176	34.7%	55.4%
E35	Nimzo-Indian, classical, Noa variation, 5.cd ed	254	34.6%	52.4%
B75	Sicilian, dragon, Yugoslav attack	127	34.6%	56.7%
C00	French, King's Indian attack	2629	34.6%	52.7%
C80	Ruy Lopez, open, 8...Be6	474	34.6%	46.8%
A40	Modern defence	422	34.6%	55.5%
B01	Scandinavian, Marshall variation	211	34.6%	57.6%
B07	Robatsch defence, Geller's system	581	34.6%	55.9%
D98	Gruenfeld, Russian, Smyslov variation	214	34.6%	58.9%
E39	Nimzo-Indian, classical, Pirc variation	938	34.5%	57.0%
C15	French, Winawer (Nimzovich) variation	446	34.5%	57.6%
B33	Sicilian, Pelikan (Lasker/Sveshnikov) variation	397	34.5%	55.8%
D78	Neo-Gruenfeld, 6.O-O c6	426	34.5%	55.5%
C49	Four knights, symmetrical, Capablanca variation	29	34.5%	65.5%
E12	Queen's Indian, 4.Nc3, Botvinnik variation	29	34.5%	55.2%
E16	Queen's Indian, Yates variation	206	34.5%	54.1%
B49	Sicilian, Taimanov variation	833	34.5%	53.7%
C86	Ruy Lopez, Worrall attack, solid line	90	34.4%	47.2%
C65	Ruy Lopez, Berlin defence	544	34.4%	51.7%
B13	Caro-Kann, Panov-Botvinnik attack	416	34.4%	54.0%
D59	QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd5	192	34.4%	51.6%
B62	Sicilian, Richter-Rauzer, Margate (Alekhine) variation	64	34.4%	50.0%
A56	Czech Benoni, King's Indian system	32	34.4%	70.3%
B23	Sicilian, chameleon variation	134	34.3%	56.7%
B09	Pirc, Austrian attack, 6.e5	105	34.3%	56.2%
B08	Pirc, classical (two knights) system	254	34.3%	54.1%
B74	Sicilian, dragon, classical, Spielmann variation	73	34.2%	54.1%
C25	Vienna game	304	34.2%	49.0%
C92	Ruy Lopez, closed, Keres (9...a5) variation	38	34.2%	53.9%
D87	Gruenfeld, exchange, Spassky variation	313	34.2%	55.4%
A13	English, Neo-Catalan accepted	509	34.2%	55.2%
B09	Pirc, Austrian attack, 6.Bd3	1063	34.1%	60.3%
C42	Petrov, classical attack, Jaenisch variation	1598	34.1%	56.4%
B08	Pirc, classical system, 5.Be2	1277	34.1%	57.9%
B80	Sicilian, Scheveningen, fianchetto variation	320	34.1%	53.0%
E65	King's Indian, fianchetto, Yugoslav, 7.O-O	97	34.0%	51.0%
B52	Sicilian, Canal-Sokolsky attack, 3...Bd7	597	34.0%	52.8%
C69	Ruy Lopez, exchange, Bronstein variation	250	34.0%	54.2%
A22	English, Bremen, Smyslov system	936	34.0%	49.5%
A08	Reti, King's Indian attack	371	34.0%	52.8%
E19	Queen's Indian, old main line, 9.Qxc3	872	33.9%	54.4%
B57	Sicilian, Sozin, not Scheveningen	218	33.9%	55.0%
D11	QGD Slav, 4.e3	831	33.9%	53.1%
D67	QGD, Orthodox defence, Bd3 line, 11.O-O	115	33.9%	67.4%
E41	Nimzo-Indian, 4.e3 c5	723	33.9%	50.8%
C77	Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)	121	33.9%	50.0%
B40	Sicilian, Anderssen variation	620	33.9%	53.4%
D91	Gruenfeld, 5.Bg5	1509	33.9%	47.3%
C49	Four knights, symmetrical variation	133	33.8%	56.0%
D63	QGD, Orthodox defence, Swiss, Karlsbad variation	272	33.8%	51.8%
C00	French, Labourdonnais variation	281	33.8%	50.4%
A10	English, Anglo-Dutch defense	281	33.8%	56.4%
A27	English, three knights system	148	33.8%	55.4%
B12	Caro-Kann, Tartakower (fantasy) variation	231	33.8%	51.9%
C44	Ponziani, Jaenisch counter-attack	77	33.8%	46.8%
D39	QGD, Ragozin, Vienna variation	584	33.7%	52.7%
D30	QGD	418	33.7%	52.8%
B39	Sicilian, accelerated fianchetto, Breyer variation	1412	33.7%	62.6%
D02	Queen's pawn game, Chigorin variation	196	33.7%	57.7%
D52	QGD, Cambridge Springs defence, Rubinstein variation	98	33.7%	55.6%
E62	King's Indian, fianchetto with ...Nc6	116	33.6%	58.2%
C92	Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)	2883	33.6%	51.9%
D20	Queen's gambit accepted	905	33.6%	54.1%
D26	QGA, 4...e6	328	33.5%	50.3%
D40	QGD, Semi-Tarrasch defence	498	33.5%	50.3%
E05	Catalan, open, classical line	170	33.5%	53.2%
C00	French, Schlechter variation	290	33.4%	51.2%
D52	QGD, Cambridge Springs defence, Bogoljubow variation	374	33.4%	53.1%
B51	Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack	964	33.4%	54.4%
A48	King's Indian, Torre attack	692	33.4%	50.8%
C03	French, Tarrasch	983	33.4%	55.2%
D13	QGD Slav, exchange variation	483	33.3%	52.5%
D17	QGD Slav, Carlsbad variation	429	33.3%	56.3%
D99	Gruenfeld defence, Smyslov, main line	231	33.3%	59.5%
D56	QGD, Lasker defence	231	33.3%	48.3%
D80	Gruenfeld, Stockholm variation	210	33.3%	54.3%
A20	English, Nimzovich, Flohr variation	162	33.3%	44.4%
A23	English, Bremen system, Keres variation	159	33.3%	51.9%
E37	Nimzo-Indian, classical, Noa variation, main line, 7.Qc2	96	33.3%	61.5%
E08	Catalan, closed, 7.Qc2	69	33.3%	54.3%
E62	King's Indian, fianchetto variation	69	33.3%	51.4%
E51	Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d5	57	33.3%	58.8%
C74	Ruy Lopez, modern Steinitz defence	54	33.3%	50.0%
E70	King's Indian, accelerated Averbakh system	51	33.3%	50.0%
B01	Scandinavian defence, Lasker variation	42	33.3%	64.3%
E46	Nimzo-Indian, Simagin variation	39	33.3%	42.3%
E81	King's Indian, Saemisch, Byrne variation	36	33.3%	44.4%
C49	Four knights, symmetrical, Maroczy system	36	33.3%	47.2%
D72	Neo-Gruenfeld, 5.cd, main line	36	33.3%	52.8%
D63	QGD, Orthodox defence	30	33.3%	60.0%
C65	Ruy Lopez, Berlin defence, 4.O-O	27	33.3%	57.4%
D84	Gruenfeld, Gruenfeld gambit accepted	27	33.3%	72.2%
D83	Gruenfeld, Gruenfeld gambit	27	33.3%	46.3%
C86	Ruy Lopez, Worrall attack	24	33.3%	66.7%
A41	Modern defence	24	33.3%	45.8%
C14	French, classical, Alapin variation	21	33.3%	64.3%
C30	KGD, classical, 4.c3	18	33.3%	50.0%
A16	English, Anglo-Gruenfeld, Czech defense	18	33.3%	61.1%
A25	English, closed, Taimanov variation	18	33.3%	50.0%
A59	Benko gambit, Ne2 variation	15	33.3%	56.7%
D30	QGD Slav, Semmering variation	15	33.3%	56.7%
E30	Nimzo-Indian, Leningrad, ...b5 gambit	15	33.3%	23.3%
D52	QGD, Cambridge Springs defence, Capablanca variation	15	33.3%	43.3%
D32	QGD, Tarrasch defence, 4.cd ed	15	33.3%	56.7%
A17	English, Queens Indian, Romanishin variation	12	33.3%	50.0%
B01	Scandinavian defence, Gruenfeld variation	12	33.3%	58.3%
B27	Sicilian defence	12	33.3%	75.0%
A61	Benoni, fianchetto variation	9	33.3%	61.1%
C19	French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation	9	33.3%	61.1%
C48	Four knights, Ranken variation	9	33.3%	50.0%
B31	Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation	9	33.3%	50.0%
C41	Philidor, Hanham, Krause variation	9	33.3%	50.0%
C33	KGA, bishop's gambit	6	33.3%	50.0%
C45	Scotch, Blumenfeld attack	6	33.3%	50.0%
D40	QGD, Semi-Tarrasch, symmetrical variation	6	33.3%	66.7%
D50	QGD, Been-Koomen variation	6	33.3%	50.0%
B85	Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6	6	33.3%	50.0%
D67	QGD, Orthodox defence, Bd3 line, Janowski variation	6	33.3%	66.7%
C67	Ruy Lopez, Berlin defence, Cordel variation	6	33.3%	50.0%
E21	Nimzo-Indian, three knights, Euwe variation	3	33.3%	50.0%
C43	Petrov, modern attack, Steinitz variation	3	33.3%	83.3%
C66	Ruy Lopez, closed Berlin defence, Chigorin variation	3	33.3%	83.3%
C24	Bishop's opening, Urusov gambit	3	33.3%	50.0%
A16	English, Anglo-Gruenfeld defense, Korchnoi variation	3	33.3%	83.3%
A83	Dutch, Staunton gambit, Alekhine variation	3	33.3%	83.3%
E83	King's Indian, Saemisch, Ruban variation	3	33.3%	50.0%
A25	English, closed, 5.Rb1 Taimanov variation	3	33.3%	50.0%
B03	Alekhine's defence, exchange, Karpov variation	3	33.3%	50.0%
C45	Scotch, Ghulam Kassim variation	3	33.3%	50.0%
A80	Dutch, Korchnoi attack	3	33.3%	16.7%
C27	Vienna, `Frankenstein-Dracula' variation	3	33.3%	83.3%
A22	English, Bellon gambit	3	33.3%	50.0%
B02	Alekhine's defence, Brooklyn defence	3	33.3%	83.3%
C45	Scotch, Pulling counter-attack	3	33.3%	50.0%
C80	Ruy Lopez, open, Schlechter defence	3	33.3%	50.0%
B01	Scandinavian, Richter variation	3	33.3%	50.0%
C41	Philidor, Nimzovich, Klein variation	3	33.3%	50.0%
C33	KGA, bishop's gambit, Bogolyubov variation	3	33.3%	50.0%
C96	Ruy Lopez, closed, Rossolimo defence	3	33.3%	83.3%
D35	QGD, exchange, positional line, 5...c6	400	33.3%	50.9%
B65	Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4	1195	33.2%	54.4%
E62	King's Indian, fianchetto, Uhlmann (Szabo) variation	187	33.2%	57.2%
A90	Dutch defence, Dutch-Indian (Nimzo-Dutch) variation	187	33.2%	64.2%
B01	Scandinavian, Pytel-Wade variation	184	33.2%	61.1%
C43	Petrov, modern attack, main line	151	33.1%	57.6%
C50	Giuoco Pianissimo	589	33.1%	52.4%
D58	QGD, Tartakower (Makagonov-Bondarevsky) system	7305	33.1%	51.5%
E91	King's Indian, Kazakh variation	403	33.0%	58.7%
D47	QGD semi-Slav, neo-Meran (Lundin variation)	400	33.0%	56.5%
B21	Sicilian, Grand Prix attack	400	33.0%	50.5%
E42	Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)	1419	33.0%	56.9%
D48	QGD semi-Slav, Meran, old main line	167	32.9%	57.8%
E11	Bogo-Indian defence, Gruenfeld variation	1288	32.9%	54.7%
B90	Sicilian, Najdorf, Adams attack	79	32.9%	59.5%
A00	Benko's opening	2256	32.9%	50.3%
C64	Ruy Lopez, classical defence, Benelux variation	216	32.9%	49.3%
D73	Neo-Gruenfeld, 5.Nf3	344	32.8%	53.3%
C06	French, Tarrasch, closed variation, main line	1995	32.8%	56.5%
A38	English, symmetrical variation	329	32.8%	51.4%
D24	QGA, 4.Nc3	192	32.8%	54.4%
A13	English opening, Agincourt variation	765	32.8%	50.3%
D90	Gruenfeld, Three knights variation	186	32.8%	55.1%
E38	Nimzo-Indian, classical, 4...c5	424	32.8%	57.7%
E13	Queen's Indian, 4.Nc3, main line	180	32.8%	55.3%
D37	QGD, classical variation (5.Bf4)	2673	32.8%	53.1%
B83	Sicilian, Scheveningen, 6.Be2	473	32.8%	49.8%
A09	Reti opening	177	32.8%	55.9%
D18	QGD Slav, Dutch variation	116	32.8%	50.9%
B58	Sicilian, Boleslavsky variation	666	32.7%	49.8%
D34	QGD, Tarrasch, Prague variation, Normal position	443	32.7%	61.7%
A17	English, Nimzo-English opening	532	32.7%	54.1%
D10	QGD Slav defence, exchange variation	676	32.7%	51.1%
B02	Alekhine's defence	52	32.7%	62.5%
B57	Sicilian, Sozin, Benko variation	2056	32.7%	49.4%
C46	Four knights game	297	32.7%	49.0%
D15	QGD Slav, 4.Nc3	1265	32.6%	53.2%
E93	King's Indian, Petrosian system, main line	92	32.6%	56.5%
E10	Blumenfeld counter-gambit	46	32.6%	59.8%
D06	QGD, Grau (Sahovic) defence	46	32.6%	59.8%
B88	Sicilian, Sozin, Leonhardt variation	319	32.6%	50.5%
D42	QGD, Semi-Tarrasch, 7.Bd3	255	32.5%	51.6%
C10	French, Rubinstein variation	839	32.5%	52.1%
A99	Dutch, Ilyin-Genevsky variation with b3	203	32.5%	64.5%
E22	Nimzo-Indian, Spielmann variation	40	32.5%	48.8%
A40	Beefeater defence	40	32.5%	68.8%
C10	French, Fort Knox variation	194	32.5%	58.0%
D15	QGD Slav accepted	77	32.5%	48.7%
D38	QGD, Ragozin variation	2110	32.5%	53.8%
D52	QGD, Cambridge Springs defence, Yugoslav variation	225	32.4%	55.3%
E12	Queen's Indian, Petrosian system	5317	32.4%	53.2%
C43	Petrov, modern attack, Trifunovic variation	37	32.4%	43.2%
E11	Bogo-Indian defence	1249	32.4%	54.9%
A36	English, ultra-symmetrical variation	469	32.4%	51.0%
E96	King's Indian, orthodox, 7...Nbd7, main line	250	32.4%	57.0%
A22	English opening	281	32.4%	51.4%
A59	Benko gambit, main line	377	32.4%	58.4%
D17	QGD Slav, Krause attack	306	32.4%	55.1%
E25	Nimzo-Indian, Saemisch, Keres variation	170	32.4%	50.3%
C25	Vienna, Paulsen variation	34	32.4%	51.5%
A39	English, symmetrical, main line with d4	266	32.3%	55.3%
E10	Queen's pawn game	2529	32.3%	54.7%
A12	English, Capablanca's variation	31	32.3%	45.2%
B02	Alekhine's defence, Two pawns' (Lasker's) attack	31	32.3%	48.4%
D89	Gruenfeld, exchange, Sokolsky variation	31	32.3%	35.5%
E00	Catalan opening	1915	32.2%	54.2%
C86	Ruy Lopez, Worrall attack, sharp line	149	32.2%	52.3%
C76	Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation	202	32.2%	50.2%
D30	QGD, Vienna variation	115	32.2%	49.1%
A21	English, Kramnik-Shirov counterattack	532	32.1%	49.0%
C63	Ruy Lopez, Schliemann defence, Berger variation	84	32.1%	56.5%
B01	Scandinavian gambit	56	32.1%	44.6%
B92	Sicilian, Najdorf, Opovcensky variation	4683	32.1%	52.6%
D00	Levitsky attack (Queen's bishop attack)	327	32.1%	54.3%
A07	Reti, King's Indian attack (Barcza system)	2853	32.1%	51.5%
C77	Ruy Lopez, four knights (Tarrasch) variation	190	32.1%	56.1%
C17	French, Winawer, advance, Bogolyubov variation	134	32.1%	59.3%
C01	French, exchange variation	991	32.1%	54.2%
D45	QGD semi-Slav, Stoltz variation	15719	32.1%	51.3%
A78	Benoni, classical with ...Re8 and ...Na6	50	32.0%	56.0%
D35	QGD, Harrwitz attack	50	32.0%	56.0%
C69	Ruy Lopez, exchange variation, Alapin gambit	25	32.0%	60.0%
A15	English opening	3638	32.0%	55.5%
C00	French defence, Steiner variation	363	32.0%	47.4%
B33	Sicilian, Pelikan, Bird variation	72	31.9%	57.6%
A13	English, Neo-Catalan	260	31.9%	53.7%
E60	King's Indian, 3.Nf3	2297	31.9%	54.7%
B47	Sicilian, Taimanov (Bastrikov) variation	7180	31.9%	54.4%
B11	Caro-Kann, Two knights, 3...Bg4	210	31.9%	51.2%
D95	Gruenfeld, Botvinnik variation	69	31.9%	42.0%
E90	King's Indian, Larsen variation	69	31.9%	50.7%
D63	QGD, Orthodox defence, Swiss (Henneberger) variation	113	31.9%	57.5%
A11	English, Caro-Kann defensive system	358	31.8%	53.4%
D75	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc	22	31.8%	56.8%
C90	Ruy Lopez, closed, Suetin variation	22	31.8%	56.8%
B46	Sicilian, Taimanov variation	3293	31.8%	54.8%
A55	Old Indian, main line	343	31.8%	61.1%
C89	Ruy Lopez, Marshall counter-attack	107	31.8%	53.3%
A42	Modern defence, Averbakh system	148	31.8%	56.4%
A48	King's Indian, East Indian defence	564	31.7%	50.3%
C02	French, advance, Steinitz variation	227	31.7%	49.3%
B07	Pirc, 150 attack	164	31.7%	59.8%
C13	French, Albin-Alekhine-Chatard attack	41	31.7%	74.4%
B42	Sicilian, Kan, Gipslis variation	183	31.7%	56.3%
A58	Benko gambit accepted	625	31.7%	57.6%
E94	King's Indian, orthodox variation	1450	31.7%	56.1%
A25	English, closed, 5.Rb1	326	31.6%	55.4%
C43	Petrov, modern attack, Symmetrical variation	747	31.6%	53.5%
B44	Sicilian, Szen, hedgehog variation	478	31.6%	45.3%
D29	QGA, classical, 8...Bb7	355	31.5%	45.9%
D37	QGD, 4.Nf3	2619	31.5%	52.6%
D03	Torre attack (Tartakower variation)	260	31.5%	51.9%
B41	Sicilian, Kan, Maroczy bind (Reti variation)	222	31.5%	51.8%
D49	QGD semi-Slav, Meran, Blumenfeld variation	517	31.5%	51.4%
B41	Sicilian, Kan variation	146	31.5%	49.3%
A98	Dutch, Ilyin-Genevsky variation with Qc2	73	31.5%	66.4%
A92	Dutch, stonewall variation	73	31.5%	51.4%
A41	Old Indian, Tartakower (Wade) variation	632	31.5%	58.8%
C44	Scotch, Goering gambit	54	31.5%	62.0%
A30	English, symmetrical, hedgehog system	2509	31.4%	56.1%
B83	Sicilian, modern Scheveningen	420	31.4%	51.7%
B98	Sicilian, Najdorf, 7...Be7	35	31.4%	64.3%
B43	Sicilian, Kan, 5.Nc3	2985	31.4%	53.4%
A37	English, symmetrical, Botvinnik system reversed	296	31.4%	54.6%
D32	QGD, Tarrasch defence	156	31.4%	53.5%
B42	Sicilian, Kan, Swiss cheese variation	207	31.4%	56.3%
D05	Queen's pawn game, Rubinstein (Colle-Zukertort) variation	86	31.4%	52.9%
E68	King's Indian, fianchetto, classical variation, 8.e4	1478	31.4%	57.1%
C45	Scotch game	927	31.4%	54.2%
D43	QGD semi-Slav	5025	31.4%	51.4%
A07	Reti, King's Indian attack, Yugoslav variation	2167	31.4%	54.1%
B33	Sicilian defence	526	31.4%	48.6%
B44	Sicilian, Szen (`anti-Taimanov') variation	456	31.4%	51.2%
B06	Robatsch (modern) defence	3780	31.3%	56.5%
A06	Reti, Nimzovich-Larsen attack	638	31.3%	49.8%
E59	Nimzo-Indian, 4.e3, main line	1790	31.3%	54.6%
B31	Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)	2167	31.3%	53.8%
D25	QGA, Smyslov variation	83	31.3%	57.8%
E63	King's Indian, fianchetto, Panno variation	2243	31.3%	57.2%
B54	Sicilian, Prins (Moscow) variation	310	31.3%	50.5%
A05	Reti opening	2527	31.3%	52.8%
D46	QGD semi-Slav, Chigorin defence	256	31.3%	50.8%
E77	King's Indian, Four pawns attack	192	31.3%	50.5%
B19	Caro-Kann, classical, 7...Nd7	96	31.3%	50.0%
D29	QGA, classical, Smyslov variation	16	31.3%	53.1%
E73	King's Indian, 5.Be2	16	31.3%	40.6%
A00	Clemenz (Mead's, Basman's or de Klerk's) opening	16	31.3%	34.4%
B40	Sicilian defence	3479	31.2%	52.8%
A53	Old Indian defence	631	31.2%	57.9%
D12	QGD Slav, 4.e3 Bf5	1599	31.2%	55.3%
A81	Dutch defence	3118	31.2%	58.5%
E21	Nimzo-Indian, three knights variation	1193	31.2%	52.5%
E95	King's Indian, orthodox, 7...Nbd7, 8.Re1	587	31.2%	58.3%
A83	Dutch, Staunton gambit, Staunton's line	61	31.1%	51.6%
C74	Ruy Lopez, Siesta, Kopayev variation	45	31.1%	48.9%
B09	Pirc, Austrian attack	164	31.1%	55.8%
A00	Polish (Sokolsky) opening	119	31.1%	50.0%
C78	Ruy Lopez, 5.O-O	596	31.0%	54.6%
A01	Nimzovich-Larsen attack, modern variation	203	31.0%	52.0%
A43	Old Benoni, Franco-Benoni defence	29	31.0%	56.9%
B93	Sicilian, Najdorf, 6.f4	1782	31.0%	50.6%
C77	Ruy Lopez, Wormald (Alapin) attack	245	31.0%	50.2%
D45	QGD semi-Slav, accelerated Meran (Alekhine variation)	948	31.0%	52.3%
D31	QGD, semi-Slav, Marshall gambit	616	31.0%	52.8%
A16	English opening	300	31.0%	53.5%
B95	Sicilian, Najdorf, 6...e6	200	31.0%	46.5%
A40	Queen's pawn, Franco-Indian (Keres) defence	491	31.0%	55.2%
A40	Queen's pawn	2497	31.0%	55.4%
A86	Dutch, Leningrad variation	42	31.0%	56.0%
E49	Nimzo-Indian, 4.e3, Botvinnik system	265	30.9%	44.9%
C78	Ruy Lopez, Moeller defence	472	30.9%	53.6%
D97	Gruenfeld, Russian, Alekhine (Hungarian) variation	1775	30.9%	51.0%
A01	Nimzovich-Larsen attack, classical variation	97	30.9%	46.4%
A80	Dutch	1650	30.9%	55.7%
D25	QGA, Janowsky-Larsen variation	220	30.9%	56.4%
B32	Sicilian defence	576	30.9%	48.3%
C71	Ruy Lopez, modern Steinitz defence, Duras (Keres) variation	123	30.9%	52.0%
E43	Nimzo-Indian, Fischer variation	340	30.9%	54.6%
C45	Scotch, Mieses variation	405	30.9%	51.7%
A20	English opening	3412	30.9%	54.6%
B30	Sicilian defence	1280	30.9%	51.9%
B85	Sicilian, Scheveningen, classical, Maroczy system	94	30.9%	54.8%
A60	Benoni defence	107	30.8%	56.5%
A29	English, four knights, kingside fianchetto	6304	30.8%	51.5%
B23	Sicilian, Grand Prix attack	227	30.8%	52.0%
E69	King's Indian, fianchetto, classical main line	1227	30.8%	60.9%
C69	Ruy Lopez, exchange variation, 5.O-O	211	30.8%	54.3%
E14	Queen's Indian, 4.e3	884	30.8%	51.1%
C96	Ruy Lopez, closed (10...c5)	715	30.8%	56.9%
D61	QGD, Orthodox defence, Rubinstein variation	208	30.8%	54.8%
C46	Three knights game	78	30.8%	60.3%
D46	QGD semi-Slav, Bogolyubov variation	78	30.8%	65.4%
C43	Petrov, modern (Steinitz) attack	39	30.8%	53.8%
D49	QGD semi-Slav, Meran, Rellstab attack	39	30.8%	43.6%
C11	French, Henneberger variation	26	30.8%	30.8%
C47	Four knights, Belgrade gambit	26	30.8%	61.5%
B06	Robatsch defence, three pawns attack	13	30.8%	53.8%
D63	QGD, Orthodox defence, Pillsbury attack	13	30.8%	53.8%
D90	Gruenfeld, Schlechter variation	13	30.8%	69.2%
D11	QGD Slav, 3.Nf3	1034	30.8%	53.7%
A28	English, four knights, Marini variation	400	30.8%	55.9%
B07	Pirc, Sveshnikov system	153	30.7%	53.9%
B00	Owen defence	101	30.7%	56.9%
B64	Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f4	701	30.7%	54.3%
C91	Ruy Lopez, closed, Bogolyubov variation	3432	30.7%	51.3%
A36	English, symmetrical, Botvinnik system	62	30.6%	54.0%
A41	Queen's Pawn	1211	30.6%	57.0%
B06	Robatsch defence, Two knights variation	506	30.6%	57.6%
E15	Queen's Indian, 4.g3	333	30.6%	54.4%
A15	English, 1...Nf6 (Anglo-Indian defense)	382	30.6%	52.2%
D20	QGA, 3.e4	1098	30.6%	54.8%
A57	Benko gambit half accepted	719	30.6%	57.0%
E62	King's Indian, fianchetto, Kavalek (Bronstein) variation	729	30.6%	59.2%
D12	QGD Slav, Amsterdam variation	36	30.6%	48.6%
C88	Ruy Lopez, closed, 7...O-O	1153	30.5%	53.4%
C71	Ruy Lopez, modern Steinitz defence	95	30.5%	55.3%
B04	Alekhine's defence, modern, Larsen variation	295	30.5%	58.6%
C87	Ruy Lopez, closed, Averbach variation	177	30.5%	59.3%
C82	Ruy Lopez, open, Dilworth variation	59	30.5%	64.4%
B44	Sicilian defence	318	30.5%	54.2%
C68	Ruy Lopez, exchange variation	82	30.5%	56.7%
D04	Queen's pawn game	456	30.5%	52.5%
D23	QGA, Mannheim variation	187	30.5%	51.6%
D35	QGD, exchange, Saemisch variation	105	30.5%	50.5%
D48	QGD semi-Slav, Meran, Reynolds' variation	1165	30.5%	53.8%
A30	English, symmetrical variation	3017	30.5%	53.7%
E12	Queen's Indian, 4.Nc3	3032	30.4%	51.8%
A52	Budapest, Rubinstein variation	23	30.4%	63.0%
B61	Sicilian, Richter-Rauzer, Larsen variation, 7.Qd2	375	30.4%	60.0%
C55	Two knights defence (Modern bishop's opening)	579	30.4%	56.3%
C88	Ruy Lopez, closed, anti-Marshall 8.a4	872	30.4%	51.3%
C95	Ruy Lopez, closed, Breyer, Borisenko variation	1923	30.4%	56.7%
B09	Pirc, Austrian attack, 6.Be3	191	30.4%	53.9%
A32	English, symmetrical variation	145	30.3%	54.5%
E33	Nimzo-Indian, classical, Milner-Barry (Zurich) variation	188	30.3%	56.6%
A13	English opening	1518	30.3%	54.3%
C11	French defence	198	30.3%	50.0%
D64	QGD, Orthodox defence, Rubinstein attack, Wolf variation	33	30.3%	54.5%
E53	Nimzo-Indian, 4.e3, Keres variation	33	30.3%	48.5%
C40	QP counter-gambit (elephant gambit)	33	30.3%	54.5%
D45	QGD semi-Slav, 5.e3	175	30.3%	56.9%
B03	Alekhine's defence, exchange variation	294	30.3%	60.7%
A10	English opening	1206	30.3%	56.4%
A50	Kevitz-Trajkovich defence	539	30.2%	50.2%
A07	Reti, King's Indian attack (with ...c5)	172	30.2%	50.6%
C88	Ruy Lopez, Trajkovic counter-attack	86	30.2%	48.8%
A45	Blackmar-Diemer gambit	43	30.2%	54.7%
B30	Sicilian, Nimzovich-Rossolimo attack (without ...d6)	2498	30.2%	53.9%
D30	QGD, Capablanca-Duras variation	212	30.2%	53.8%
E15	Queen's Indian, Nimzovich variation (exaggerated fianchetto)	18197	30.2%	55.5%
D12	QGD Slav, exchange variation	63	30.2%	56.3%
A43	Old Benoni defence	733	30.2%	58.7%
E70	King's Indian, 4.e4	455	30.1%	56.2%
E00	Queen's pawn game	715	30.1%	54.3%
C41	Philidor, exchange variation	143	30.1%	54.2%
C62	Ruy Lopez, old Steinitz defence	476	30.0%	54.3%
B48	Sicilian, Taimanov variation	2884	30.0%	50.8%
D19	QGD Slav, Dutch variation	1513	30.0%	55.3%
B70	Sicilian, dragon variation	350	30.0%	47.0%
A90	Dutch-Indian, Alekhine variation	60	30.0%	51.7%
E17	Queen's Indian, Euwe variation	40	30.0%	67.5%
B96	Sicilian, Najdorf, Polugayevsky, Simagin variation	20	30.0%	55.0%
C22	Centre game, Paulsen attack	10	30.0%	65.0%
D51	QGD	10	30.0%	35.0%
C35	KGA, Cunningham defence	10	30.0%	25.0%
B37	Sicilian, accelerated fianchetto, Simagin variation	10	30.0%	45.0%
B03	Alekhine's defence, four pawns attack, fianchetto variation	10	30.0%	75.0%
E11	Bogo-Indian defence, Nimzovich variation	1478	30.0%	56.8%
C79	Ruy Lopez, Steinitz defence deferred (Russian defence)	177	29.9%	51.7%
E17	Queen's Indian, old main line, 6.O-O	314	29.9%	53.8%
E66	King's Indian, fianchetto, Yugoslav Panno	274	29.9%	55.8%
C11	French, Burn variation	3984	29.9%	53.1%
A35	English, symmetrical, four knights system	1581	29.9%	54.0%
C50	Giuoco Piano	77	29.9%	51.3%
B84	Sicilian, Scheveningen (Paulsen), classical variation	5149	29.9%	51.7%
B96	Sicilian, Najdorf, 7.f4	402	29.9%	51.0%
D30	Queen's gambit declined	2449	29.8%	54.3%
B52	Sicilian, Canal-Sokolsky attack, Bronstein gambit	161	29.8%	45.3%
D94	Gruenfeld, Makogonov variation	104	29.8%	49.5%
B42	Sicilian, Kan, 5.Bd3	3596	29.7%	56.8%
B73	Sicilian, dragon, classical, 8.O-O	64	29.7%	61.7%
E60	King's Indian, 3.g3	758	29.7%	57.3%
A96	Dutch, classical variation	219	29.7%	65.1%
C72	Ruy Lopez, modern Steinitz defence, 5.O-O	324	29.6%	58.3%
C42	Petrov, Paulsen attack	81	29.6%	49.4%
A13	English, Kurajica defence	54	29.6%	46.3%
E93	King's Indian, Petrosian system, Keres variation	27	29.6%	40.7%
E25	Nimzo-Indian, Saemisch, Romanovsky variation	27	29.6%	44.4%
B17	Caro-Kann, Steinitz variation	2701	29.6%	53.5%
B45	Sicilian, Taimanov variation	1381	29.6%	55.4%
C77	Ruy Lopez, Anderssen variation	426	29.6%	50.5%
C42	Petrov, classical attack, Marshall variation	1728	29.6%	55.1%
A86	Dutch with c4 & g3	44	29.5%	64.8%
D14	QGD Slav, exchange variation, 6.Bf4 Bf5	210	29.5%	49.5%
A75	Benoni, classical with ...a6 and 10...Bg4	61	29.5%	55.7%
E62	King's Indian, fianchetto, Simagin variation	61	29.5%	72.1%
A46	Queen's pawn game	1847	29.5%	56.3%
B76	Sicilian, dragon, Yugoslav attack, 7...O-O	234	29.5%	40.8%
B33	Sicilian, Pelikan, Chelyabinsk variation	3488	29.5%	55.1%
D45	QGD semi-Slav, 5...Nd7	265	29.4%	50.6%
A49	King's Indian, fianchetto without c4	714	29.4%	52.9%
D36	QGD, exchange, positional line, 6.Qc2	68	29.4%	57.4%
B88	Sicilian, Sozin, Fischer variation	34	29.4%	55.9%
C00	French, Reversed Philidor formation	34	29.4%	41.2%
E83	King's Indian, Saemisch, 6...Nc6	17	29.4%	44.1%
B18	Caro-Kann, classical, 6.h4	483	29.4%	55.1%
A87	Dutch, Leningrad, main variation	456	29.4%	58.6%
A40	Queen's pawn, Keres defence	759	29.4%	56.3%
A22	English, Carls' Bremen system	177	29.4%	56.5%
E46	Nimzo-Indian, Reshevsky variation	555	29.4%	51.3%
D47	QGD semi-Slav, Meran, Wade variation	12086	29.4%	52.5%
D02	Queen's pawn game	4404	29.3%	52.2%
A70	Benoni, classical with e4 and Nf3	658	29.3%	59.8%
E44	Nimzo-Indian, Fischer variation, 5.Ne2	399	29.3%	53.8%
A09	Reti, advance variation	331	29.3%	47.9%
C41	Philidor's defence	140	29.3%	53.2%
A04	Reti opening	3368	29.3%	52.9%
B87	Sicilian, Sozin with ...a6 and ...b5	1269	29.2%	49.9%
D07	QGD, Chigorin defence	821	29.2%	58.3%
C96	Ruy Lopez, closed, Borisenko defence	65	29.2%	63.8%
A95	Dutch, stonewall with Nc3	178	29.2%	52.8%
A89	Dutch, Leningrad, main variation with Nc6	565	29.2%	60.6%
E64	King's Indian, fianchetto, Yugoslav system	72	29.2%	54.9%
C84	Ruy Lopez, closed, centre attack	72	29.2%	50.7%
A72	Benoni, classical without 9.O-O	72	29.2%	60.4%
B02	Alekhine's defence, Scandinavian variation	48	29.2%	54.2%
D30	QGD, Capablanca variation	24	29.2%	60.4%
E73	King's Indian, Semi-Averbakh system	24	29.2%	60.4%
A28	English, four knights system	151	29.1%	51.7%
C70	Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation	103	29.1%	60.2%
C44	Scotch gambit, Dubois-Reti defence	182	29.1%	51.9%
E20	Nimzo-Indian defence	158	29.1%	48.1%
B32	Sicilian, Flohr variation	55	29.1%	52.7%
A26	English, closed system	196	29.1%	55.9%
D02	Queen's bishop game	963	29.1%	51.7%
C05	French, Tarrasch, Botvinnik variation	86	29.1%	59.9%
D34	QGD, Tarrasch, Prague variation, 7...Be7	117	29.1%	59.8%
A31	English, symmetrical, Benoni formation	809	29.0%	54.9%
E31	Nimzo-Indian, Leningrad, main line	62	29.0%	48.4%
E54	Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation	31	29.0%	56.5%
C77	Ruy Lopez, Morphy defence, Duras variation	31	29.0%	46.8%
E97	King's Indian, orthodox, Aronin-Taimanov, bayonet attack	3430	29.0%	57.1%
C14	French, classical, Steinitz variation	493	29.0%	58.5%
C53	Giuoco Piano	831	29.0%	52.9%
E70	King's Indian, Kramer system	69	29.0%	49.3%
A17	English, Queens Indian formation	76	28.9%	53.9%
D00	Queen's pawn, Mason variation	612	28.9%	54.7%
B19	Caro-Kann, classical, Spassky variation	3479	28.9%	57.0%
A25	English, closed system	727	28.9%	55.3%
E12	Queen's Indian defence	277	28.9%	50.2%
B54	Sicilian	634	28.9%	54.2%
B79	Sicilian, dragon, Yugoslav attack, 12.h4	156	28.8%	66.3%
B07	Pirc defence	496	28.8%	54.3%
C73	Ruy Lopez, modern Steinitz defence, Richter variation	111	28.8%	45.0%
B23	Sicilian, closed, 2...Nc6	809	28.8%	55.4%
A84	Dutch defence	615	28.8%	59.1%
A19	English, Mikenas-Carls, Sicilian variation	73	28.8%	51.4%
A42	Pterodactyl defence	1033	28.8%	61.8%
C50	Giuoco Pianissimo, Italian four knights variation	160	28.8%	53.1%
A21	English, Troeger defence	94	28.7%	55.9%
C00	French, Chigorin variation	693	28.7%	53.3%
B98	Sicilian, Najdorf variation	108	28.7%	48.6%
A09	Reti accepted	115	28.7%	57.8%
D10	QGD Slav defence	1521	28.7%	52.5%
E71	King's Indian, Makagonov system (5.h3)	307	28.7%	56.4%
A25	English, Sicilian reversed	356	28.7%	51.7%
A80	Dutch, 2.Bg5 variation	363	28.7%	49.9%
B20	Sicilian, Steinitz variation	377	28.6%	50.9%
B82	Sicilian, Scheveningen, 6.f4	639	28.6%	54.5%
C11	French, Steinitz, Boleslavsky variation	1806	28.6%	54.1%
B91	Sicilian, Najdorf, Zagreb (fianchetto) variation	381	28.6%	52.6%
A34	English, symmetrical variation	609	28.6%	52.4%
E17	Queen's Indian, Opovcensky variation	483	28.6%	59.6%
A61	Benoni defence	462	28.6%	59.7%
B01	Scandinavian defence	322	28.6%	49.1%
D35	QGD, 3...Nf6	84	28.6%	48.8%
B56	Sicilian, Venice attack	42	28.6%	61.9%
C54	Giuoco Piano	42	28.6%	47.6%
C00	French, Pelikan variation	35	28.6%	57.1%
C96	Ruy Lopez, closed (8...Na5)	28	28.6%	50.0%
C44	Scotch, Lolli variation	21	28.6%	57.1%
D46	QGD semi-Slav, 6.Bd3	21	28.6%	52.4%
E10	Doery defence	21	28.6%	47.6%
D15	QGD Slav, Slav gambit	21	28.6%	47.6%
C29	Vienna gambit	14	28.6%	42.9%
C62	Ruy Lopez, old Steinitz defence, Nimzovich attack	14	28.6%	64.3%
C21	Halasz gambit	7	28.6%	71.4%
C00	French, Wing gambit	7	28.6%	85.7%
C12	French, MacCutcheon, Bogolyubov variation	7	28.6%	71.4%
D98	Gruenfeld, Russian, Keres variation	7	28.6%	57.1%
B18	Caro-Kann, classical, Maroczy attack	7	28.6%	71.4%
C44	Ponziani, Caro variation	7	28.6%	57.1%
B90	Sicilian, Najdorf, Lipnitzky attack	1090	28.5%	47.0%
E88	King's Indian, Saemisch, orthodox, 7.d5 c6	425	28.5%	54.7%
B60	Sicilian, Richter-Rauzer	239	28.5%	56.1%
C78	Ruy Lopez, Archangelsk (counterthrust) variation	710	28.5%	54.6%
A25	English, closed system (without ...d6)	88	28.4%	55.1%
E32	Nimzo-Indian, classical, Adorjan gambit	74	28.4%	61.5%
D86	Gruenfeld, exchange, Simagin's improved variation	74	28.4%	66.9%
A36	English, symmetrical, Botvinnik system reversed	60	28.3%	52.5%
B05	Alekhine's defence, modern variation, 4...Bg4	212	28.3%	65.1%
E67	King's Indian, fianchetto with ...Nd7	53	28.3%	57.5%
A47	Queen's Indian defence	357	28.3%	54.2%
B12	Caro-Kann, advance variation	3375	28.3%	55.2%
A45	Queen's pawn game	1638	28.3%	51.3%
A26	English, Botvinnik system	216	28.2%	48.8%
C42	Petrov's defence	255	28.2%	51.0%
C18	French, Winawer, advance variation	124	28.2%	61.7%
D35	QGD, exchange, positional line	592	28.2%	54.8%
D52	QGD, Cambridge Springs defence, 7.cd	39	28.2%	57.7%
B55	Sicilian, Prins variation, Venice attack	39	28.2%	50.0%
B50	Sicilian	1759	28.2%	52.2%
C48	Four knights, Rubinstein counter-gambit	674	28.2%	55.3%
A84	Dutch defence, Rubinstein variation	330	28.2%	59.5%
B56	Sicilian	1551	28.2%	53.9%
D35	QGD, exchange variation	103	28.2%	53.9%
E92	King's Indian, Petrosian system, Stein variation	913	28.1%	51.9%
E28	Nimzo-Indian, Saemisch variation	32	28.1%	57.8%
E62	King's Indian, fianchetto, lesser Simagin (Spassky) variation	178	28.1%	62.4%
A40	Queen's pawn, Lundin (Kevitz-Mikenas) defence	57	28.1%	61.4%
B06	Robatsch defence, Gurgenidze variation	57	28.1%	59.6%
A07	Reti, King's Indian attack	328	28.0%	57.3%
E58	Nimzo-Indian, 4.e3, main line with 8...Bxc3	1620	28.0%	50.3%
B96	Sicilian, Najdorf, Polugayevsky variation	75	28.0%	54.0%
D08	QGD, Albin counter-gambit	25	28.0%	50.0%
B22	Sicilian, 2.c3, Heidenfeld variation	25	28.0%	42.0%
D33	QGD, Tarrasch, Prague variation	25	28.0%	50.0%
A81	Dutch defence, Blackburne variation	25	28.0%	62.0%
A46	Queen's pawn, Torre attack	565	28.0%	52.6%
A45	Trompovsky attack (Ruth, Opovcensky opening)	1141	28.0%	51.6%
E61	King's Indian, Smyslov system	68	27.9%	52.2%
B13	Caro-Kann, exchange variation	394	27.9%	52.8%
E84	King's Indian, Saemisch, Panno main line	584	27.9%	55.9%
C26	Vienna, Falkbeer variation	43	27.9%	51.2%
E16	Queen's Indian, Riumin variation	104	27.9%	52.4%
C64	Ruy Lopez, classical (Cordel) defence	330	27.9%	52.7%
B10	Caro-Kann, closed (Breyer) variation	158	27.8%	55.7%
D48	QGD semi-Slav, Meran, 8...a6	1476	27.8%	48.0%
B06	Robatsch defence	576	27.8%	59.4%
C01	French, exchange, Svenonius variation	36	27.8%	58.3%
C52	Evans gambit	18	27.8%	36.1%
A97	Dutch, Ilyin-Genevsky variation	18	27.8%	58.3%
C00	Lengfellner system	18	27.8%	58.3%
E10	Blumenfeld counter-gambit, Spielmann variation	18	27.8%	75.0%
B89	Sicilian, Sozin, 7.Be3	1618	27.8%	50.3%
E76	King's Indian, Four pawns attack, dynamic line	65	27.7%	53.8%
B68	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be7	177	27.7%	48.3%
A56	Benoni defence	755	27.7%	62.1%
B25	Sicilian, closed, 6.f4	271	27.7%	47.0%
B00	King's pawn opening	351	27.6%	58.3%
A37	English, symmetrical variation	355	27.6%	53.5%
A64	Benoni, fianchetto, 11...Re8	167	27.5%	56.3%
D30	QGD Slav	167	27.5%	53.9%
D49	QGD semi-Slav, Meran, Stahlberg variation	91	27.5%	61.0%
E94	King's Indian, orthodox, 7...Nbd7	2046	27.5%	57.1%
B07	Pirc, Ufimtsev-Pytel variation	277	27.4%	58.1%
B25	Sicilian, closed	73	27.4%	54.8%
D31	QGD, semi-Slav, Noteboom variation	106	27.4%	49.5%
C42	Petrov, classical attack	406	27.3%	59.7%
A50	Queen's pawn game	322	27.3%	52.5%
B42	Sicilian, Kan, Polugaievsky variation	1963	27.3%	54.2%
E52	Nimzo-Indian, 4.e3, main line with ...b6	220	27.3%	55.9%
C73	Ruy Lopez, modern Steinitz defence, Alapin variation	110	27.3%	56.4%
E76	King's Indian, Four pawns attack	88	27.3%	52.3%
C23	Bishop's opening	77	27.3%	53.9%
C53	Giuoco Piano, Bird's attack	44	27.3%	59.1%
D27	QGA, classical, Geller variation	44	27.3%	47.7%
C70	Ruy Lopez, Caro variation	33	27.3%	59.1%
C66	Ruy Lopez, Berlin defence, 4.O-O, d6	33	27.3%	56.1%
A28	English, Bradley Beach variation	33	27.3%	47.0%
C10	French, Frere (Becker) variation	22	27.3%	54.5%
D65	QGD, Orthodox defence, Rubinstein attack, main line	11	27.3%	40.9%
B72	Sicilian, dragon, classical attack	11	27.3%	59.1%
C88	Ruy Lopez, closed, Balla variation	11	27.3%	50.0%
C91	Ruy Lopez, closed, 9.d4	1966	27.3%	54.8%
E73	King's Indian, Averbakh system	375	27.2%	51.2%
E81	King's Indian, Saemisch, 5...O-O	1291	27.2%	54.3%
C90	Ruy Lopez, closed (with ...d6)	1436	27.2%	49.9%
D16	QGD Slav accepted, Alapin variation	70	27.1%	66.4%
A04	Reti v Dutch	339	27.1%	61.1%
D31	QGD, Charousek (Petrosian) variation	247	27.1%	50.0%
C50	Giuoco Piano, four knights variation	48	27.1%	57.3%
B60	Sicilian, Richter-Rauzer, Larsen variation	133	27.1%	51.9%
E97	King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)	3865	27.1%	55.4%
D31	QGD, 3.Nc3	303	27.1%	53.5%
B23	Sicilian, closed	1068	27.1%	51.4%
B10	Caro-Kann, anti-Caro-Kann defence	451	27.1%	57.0%
A61	Benoni, Nimzovich (knight's tour) variation	389	27.0%	63.6%
A21	English opening	931	27.0%	54.0%
A33	English, symmetrical, Geller variation	705	27.0%	53.8%
B18	Caro-Kann, classical variation	360	26.9%	52.6%
E10	Blumenfeld counter-gambit, Dus-Chotimursky variation	182	26.9%	58.5%
C92	Ruy Lopez, closed, Kholmov variation	104	26.9%	56.7%
C44	Ponziani counter-gambit	26	26.9%	40.4%
C50	Hungarian defence	26	26.9%	44.2%
B04	Alekhine's defence, modern, Schmid variation	108	26.9%	64.4%
A62	Benoni, fianchetto variation	265	26.8%	60.2%
E30	Nimzo-Indian, Leningrad variation	217	26.7%	52.1%
B04	Alekhine's defence, modern variation	116	26.7%	59.1%
C70	Ruy Lopez, Classical defence deferred	367	26.7%	51.0%
C64	Ruy Lopez, classical defence, 4.c3	165	26.7%	53.3%
D55	QGD, 6.Nf3	105	26.7%	53.3%
A20	English, Nimzovich variation	75	26.7%	61.3%
A73	Benoni, classical, 9.O-O	30	26.7%	50.0%
C44	King's pawn game	30	26.7%	53.3%
C33	KGA, bishop's gambit, Jaenisch variation	15	26.7%	40.0%
C13	French, Albin-Alekhine-Chatard attack, Spielmann variation	15	26.7%	66.7%
B01	Scandinavian (centre counter) defence	1047	26.6%	64.1%
E91	King's Indian, 6.Be2	413	26.6%	58.1%
D17	QGD Slav, Wiesbaden variation	323	26.6%	63.5%
C17	French, Winawer, advance, 5.a3	387	26.6%	55.7%
B76	Sicilian, dragon, Yugoslav attack, Rauser variation	813	26.6%	56.5%
A06	Reti opening	990	26.6%	57.8%
A35	English, symmetrical variation	128	26.6%	57.0%
C15	French, Winawer, Alekhine (Maroczy) gambit	226	26.5%	56.2%
E41	Nimzo-Indian, e3, Huebner variation	588	26.5%	46.3%
B07	Pirc, Byrne variation	132	26.5%	58.0%
E94	King's Indian, orthodox, Donner variation	102	26.5%	63.2%
C63	Ruy Lopez, Schliemann defence	34	26.5%	54.4%
B90	Sicilian, Najdorf	1736	26.4%	51.9%
B12	Caro-Kann defence	231	26.4%	53.0%
D01	Richter-Veresov attack	231	26.4%	46.1%
D97	Gruenfeld, Russian, Szabo (Boleslavsky) variation	91	26.4%	56.0%
D15	QGD Slav, 5.e3 (Alekhine variation)	76	26.3%	50.0%
D32	QGD, Tarrasch, von Hennig-Schara gambit	38	26.3%	57.9%
A00	Benko's opening, reversed Alekhine	38	26.3%	42.1%
C49	Four knights, symmetrical, Pillsbury variation	19	26.3%	34.2%
C14	French, classical, Rubinstein variation	19	26.3%	60.5%
E12	Queen's Indian, Miles variation	183	26.2%	56.3%
B66	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6	13142	26.2%	50.6%
E86	King's Indian, Saemisch, orthodox, 7.Nge2 c6	302	26.2%	54.5%
E20	Nimzo-Indian, Kmoch variation	325	26.2%	57.4%
E82	King's Indian, Saemisch, double fianchetto variation	65	26.2%	53.1%
D15	QGD Slav, Schlechter variation	111	26.1%	56.3%
C19	French, Winawer, advance, poisoned pawn variation	3784	26.1%	59.8%
B81	Sicilian, Scheveningen, Keres attack	3627	26.1%	59.3%
B29	Sicilian, Nimzovich-Rubinstein variation	69	26.1%	62.3%
A57	Benko gambit, Zaitsev system	46	26.1%	54.3%
C17	French, Winawer, advance, Russian variation	23	26.1%	43.5%
D94	Gruenfeld, Flohr defence	23	26.1%	60.9%
C55	Two knights defence	23	26.1%	43.5%
D05	Queen's pawn game	384	26.0%	54.9%
E92	King's Indian, Gligoric-Taimanov system	1534	26.0%	57.3%
E33	Nimzo-Indian, classical, 4...Nc6	50	26.0%	53.0%
B20	Sicilian, Keres variation (2.Ne2)	127	26.0%	48.4%
C02	French, advance variation	790	25.9%	54.9%
B20	Sicilian defence	1187	25.9%	50.2%
B15	Caro-Kann defence	185	25.9%	48.1%
B10	Caro-Kann, Two knights variation	162	25.9%	58.6%
E46	Nimzo-Indian, 4.e3 O-O	27	25.9%	50.0%
E50	Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d5	27	25.9%	42.6%
C10	French, Paulsen variation	529	25.9%	58.1%
E60	King's Indian defence	510	25.9%	53.5%
C42	Petrov, Italian variation	93	25.8%	52.7%
A12	English, Caro-Kann defensive system, Bogolyubov variation	31	25.8%	67.7%
C71	Ruy Lopez, modern Steinitz defence, Three knights variation	31	25.8%	58.1%
A90	Dutch defence	935	25.8%	57.2%
C03	French, Tarrasch, Guimard variation	66	25.8%	58.3%
C48	Four knights, Spanish variation	101	25.7%	58.4%
D44	QGD semi-Slav, anti-Meran gambit	883	25.7%	60.2%
B00	KP, Nimzovich defence	733	25.6%	63.3%
B67	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7	5912	25.6%	52.6%
C95	Ruy Lopez, closed, Breyer, Gligoric variation	39	25.6%	66.7%
B77	Sicilian, dragon, Yugoslav attack, 9...Bd7	422	25.6%	54.5%
B10	Caro-Kann defence	1352	25.6%	53.3%
C12	French, MacCutcheon, Lasker variation, 8...g6	512	25.6%	52.2%
A48	King's Indian, London system	344	25.6%	53.8%
C05	French, Tarrasch, closed variation	975	25.5%	58.3%
C11	French, Steinitz variation	529	25.5%	50.4%
B33	Sicilian, Sveshnikov variation	2446	25.5%	53.3%
C80	Ruy Lopez, open (Tarrasch) defence	55	25.5%	54.5%
E00	Neo-Indian (Seirawan) attack	346	25.4%	51.2%
C19	French, Winawer, advance, poisoned pawn, Konstantinopolsky variation	869	25.4%	59.8%
C75	Ruy Lopez, modern Steinitz defence	118	25.4%	55.9%
C90	Ruy Lopez, closed, Pilnik variation	1951	25.4%	52.5%
D11	QGD Slav, Breyer variation	122	25.4%	55.3%
A57	Benko gambit	335	25.4%	58.1%
E61	King's Indian defence, 3.Nc3	607	25.4%	56.3%
A91	Dutch defence	71	25.4%	59.2%
D25	QGA, 4.e3	178	25.3%	63.2%
A71	Benoni, classical, 8.Bg5	103	25.2%	58.3%
B63	Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7	1098	25.2%	52.0%
C19	French, Winawer, advance, Smyslov variation	115	25.2%	57.8%
C19	French, Winawer, advance, positional main line	1775	25.1%	57.1%
C00	French defence	697	25.1%	53.3%
B06	Robatsch defence, Pseudo-Austrian attack	347	25.1%	61.5%
E90	King's Indian, 5.Nf3	468	25.0%	54.2%
B94	Sicilian, Najdorf, 6.Bg5	212	25.0%	47.9%
B83	Sicilian, modern Scheveningen, main line with Nb3	160	25.0%	50.0%
C12	French, MacCutcheon, Janowski variation	68	25.0%	56.6%
C59	Two knights defence	68	25.0%	43.4%
A61	Benoni, Uhlmann variation	56	25.0%	58.9%
E10	Blumenfeld counter-gambit accepted	52	25.0%	51.0%
A03	Bird's opening	44	25.0%	51.1%
C44	Ponziani opening	44	25.0%	55.7%
C59	Two knights defence, Steinitz variation	40	25.0%	52.5%
C00	French, Reti (Spielmann) variation	36	25.0%	51.4%
A95	Dutch, stonewall: Chekhover variation	32	25.0%	68.8%
E72	King's Indian with e4 & g3	24	25.0%	62.5%
B07	Pirc, bayonet (Mariotti) attack	20	25.0%	72.5%
C39	KGA, Kieseritsky, Berlin defence, 6.Bc4	16	25.0%	43.8%
B60	Sicilian, Richter-Rauzer, Bondarevsky variation	12	25.0%	54.2%
D50	QGD, Semi-Tarrasch, Primitive Pillsbury variation	12	25.0%	37.5%
A00	Mieses opening	12	25.0%	37.5%
B58	Sicilian, Boleslavsky, Louma variation	12	25.0%	54.2%
A12	English, New York (London) defensive system	12	25.0%	37.5%
C43	Petrov, Urusov gambit	12	25.0%	45.8%
C35	KGA, Cunningham, Euwe defence	8	25.0%	37.5%
B72	Sicilian, dragon, classical, Amsterdam variation	8	25.0%	50.0%
E77	King's Indian, Four pawns attack, Florentine gambit	4	25.0%	37.5%
C55	Two knights, Max Lange attack, Marshall variation	4	25.0%	62.5%
A46	Queen's pawn, Torre attack, Wagner gambit	4	25.0%	37.5%
D51	QGD, Manhattan variation	4	25.0%	62.5%
B20	Sicilian, wing gambit	4	25.0%	37.5%
C30	KGD, classical, Soldatenkov variation	4	25.0%	62.5%
D50	QGD, Semi-Tarrasch	4	25.0%	62.5%
B00	KP, Colorado counter	4	25.0%	37.5%
B05	Alekhine's defence, modern, Panov variation	4	25.0%	62.5%
C70	Ruy Lopez, Graz variation	4	25.0%	87.5%
C64	Ruy Lopez, Cordel gambit	4	25.0%	87.5%
C40	Latvian counter-gambit	4	25.0%	87.5%
D00	Blackmar gambit	4	25.0%	62.5%
A00	Amsterdam attack	4	25.0%	62.5%
C57	Two knights defence, Wilkes Barre (Traxler) variation	4	25.0%	62.5%
C13	French, Albin-Alekhine-Chatard attack, Maroczy variation	4	25.0%	62.5%
D41	QGD, Semi-Tarrasch, Kmoch variation	4	25.0%	62.5%
A00	Van't Kruijs opening	4	25.0%	37.5%
A41	Old Indian defence	229	24.9%	55.2%
B24	Sicilian, closed	225	24.9%	48.0%
C50	Giuoco Pianissimo, Canal variation	221	24.9%	65.4%
D44	QGD semi-Slav, anti-Meran, Lilienthal variation	394	24.9%	56.6%
B78	Sicilian, dragon, Yugoslav attack, 10.O-O-O	712	24.9%	52.5%
C50	King's pawn game	141	24.8%	59.2%
A77	Benoni, classical, 9...Re8, 10.Nd2	206	24.8%	50.2%
B15	Caro-Kann, Tartakower (Nimzovich) variation	77	24.7%	60.4%
D31	QGD, semi-Slav, Abrahams variation	138	24.6%	45.7%
A93	Dutch, stonewall, Botwinnik variation	138	24.6%	58.7%
D24	QGA, Bogolyubov variation	69	24.6%	50.0%
A00	Dunst (Sleipner, Heinrichsen) opening	122	24.6%	55.7%
C11	French, Swiss variation	57	24.6%	52.6%
B26	Sicilian, closed, 6.Be3	310	24.5%	48.7%
D46	QGD semi-Slav, Romih variation	49	24.5%	67.3%
C97	Ruy Lopez, closed, Chigorin defence	974	24.4%	60.3%
A79	Benoni, classical, 11.f3	172	24.4%	66.9%
B03	Alekhine's defence	411	24.3%	52.8%
B32	Sicilian, Labourdonnais-Loewenthal variation	185	24.3%	59.2%
D21	QGA, 3.Nf3	301	24.3%	59.3%
B77	Sicilian, dragon, Yugoslav attack, 9.Bc4	66	24.2%	62.1%
E99	King's Indian, orthodox, Aronin-Taimanov, Benko attack	95	24.2%	46.8%
B80	Sicilian, Scheveningen variation	996	24.2%	54.8%
C02	French, advance, Paulsen attack	831	24.2%	54.8%
A58	Benko gambit, fianchetto variation	294	24.1%	59.0%
E85	King's Indian, Saemisch, orthodox variation	29	24.1%	60.3%
E90	King's Indian, Zinnowitz variation	29	24.1%	56.9%
B97	Sicilian, Najdorf, 7...Qb6	1401	24.1%	43.8%
B21	Sicilian, Smith-Morra gambit	83	24.1%	50.6%
A54	Old Indian, Ukrainian variation, 4.Nf3	108	24.1%	59.3%
D44	QGD semi-Slav, Botvinnik system (anti-Meran)	75	24.0%	48.0%
E60	Queen's pawn, Mengarini attack	96	24.0%	48.4%
D80	Gruenfeld defence	71	23.9%	54.2%
B62	Sicilian, Richter-Rauzer, 6...e6	46	23.9%	35.9%
B25	Sicilian, closed, 6.f4 e5 (Botvinnik)	46	23.9%	53.3%
D15	QGD Slav, Tolush-Geller gambit	67	23.9%	50.7%
E07	Catalan, closed, 6...Nbd7	42	23.8%	45.2%
D20	QGA, Linares variation	21	23.8%	59.5%
C98	Ruy Lopez, closed, Chigorin, 12...Nc6	290	23.8%	61.2%
B90	Sicilian, Najdorf, Byrne (English) attack	17193	23.8%	53.0%
A67	Benoni, Taimanov variation	38	23.7%	59.2%
B12	Caro-Kann, 3.Nd2	186	23.7%	58.6%
E80	King's Indian, Saemisch variation	93	23.7%	54.8%
C40	Gunderam defence	127	23.6%	65.4%
A00	Anderssen's opening	34	23.5%	38.2%
B25	Sicilian, closed, 6.Ne2 e5 (Botvinnik)	17	23.5%	35.3%
D45	QGD semi-Slav, Rubinstein (anti-Meran) system	17	23.5%	58.8%
C02	French, advance, Milner-Barry gambit	30	23.3%	61.7%
B72	Sicilian, dragon, 6.Be3	30	23.3%	55.0%
B69	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf6	758	23.2%	56.7%
D00	Queen's pawn, Chigorin variation	448	23.2%	55.4%
D60	QGD, Orthodox defence	69	23.2%	58.0%
D48	QGD semi-Slav, Meran	108	23.1%	51.4%
C19	French, Winawer, advance, 6...Ne7	147	23.1%	53.7%
A65	Benoni, 6.e4	52	23.1%	50.0%
C17	French, Winawer, advance variation	39	23.1%	57.7%
A12	English, London defensive system	26	23.1%	38.5%
A25	English, closed, Hort variation	26	23.1%	50.0%
C82	Ruy Lopez, open, Berlin variation	13	23.1%	73.1%
C02	French, advance, Euwe variation	642	23.1%	51.2%
C88	Ruy Lopez, closed	265	23.0%	48.9%
C46	Three knights, Steinitz variation	48	22.9%	57.3%
B80	Sicilian, Scheveningen, English variation	359	22.8%	54.3%
B57	Sicilian, Magnus Smith trap	22	22.7%	61.4%
D47	QGD semi-Slav, 7.Bc4	75	22.7%	60.7%
C60	Ruy Lopez, Cozio defence	53	22.6%	58.5%
E74	King's Indian, Averbakh, 6...c5	62	22.6%	58.1%
D00	Queen's pawn, Mason variation, Steinitz counter-gambit	31	22.6%	46.8%
C12	French, MacCutcheon, Lasker variation	160	22.5%	55.0%
B86	Sicilian, Sozin attack	116	22.4%	43.1%
B82	Sicilian, Scheveningen, Tal variation	85	22.4%	57.1%
C16	French, Winawer, advance variation	463	22.2%	54.8%
B16	Caro-Kann, Bronstein-Larsen variation	144	22.2%	68.8%
D50	QGD, 4.Bg5	54	22.2%	53.7%
C00	French, Two knights variation	54	22.2%	35.2%
C80	Ruy Lopez, open, 7.Bb3	36	22.2%	52.8%
C41	Philidor, Hanham, Schlechter variation	27	22.2%	59.3%
C27	Vienna, Alekhine variation	9	22.2%	44.4%
C88	Ruy Lopez, closed, 8.c3	9	22.2%	33.3%
C13	French, classical, Frankfurt variation	9	22.2%	66.7%
C13	French, classical, Anderssen variation	9	22.2%	33.3%
C42	Petrov, French attack	9	22.2%	66.7%
B89	Sicilian, Velimirovic attack	1226	22.1%	50.5%
D00	Queen's pawn game	181	22.1%	48.1%
E40	Nimzo-Indian, 4.e3	77	22.1%	59.1%
D70	Neo-Gruenfeld defence	68	22.1%	58.1%
C18	French, Winawer, classical variation	304	22.0%	59.7%
C28	Vienna game	109	22.0%	53.2%
A01	Nimzovich-Larsen attack, Indian variation	41	22.0%	47.6%
D44	QGD semi-Slav, anti-Meran, Szabo variation	105	21.9%	36.7%
A56	Czech Benoni defence	169	21.9%	68.9%
A10	English, Adorjan defence	32	21.9%	54.7%
C46	Four knights, Italian variation	133	21.8%	54.5%
E36	Nimzo-Indian, classical, Noa variation, 5.a3	46	21.7%	60.9%
B02	Alekhine's defence, Mokele Mbembe (Buecker) variation	23	21.7%	63.0%
C78	Ruy Lopez, ...b5 & ...d6	23	21.7%	54.3%
D44	QGD semi-Slav, Ekstrom variation	60	21.7%	30.8%
C51	Evans gambit declined, 5.a4	79	21.5%	42.4%
B62	Sicilian, Richter-Rauzer, Keres variation	70	21.4%	53.6%
D51	QGD, 5...c6	28	21.4%	64.3%
B03	Alekhine's defence, Balogh variation	14	21.4%	53.6%
C45	Scotch, Steinitz variation	14	21.4%	60.7%
C25	Vienna gambit	14	21.4%	53.6%
C20	KP, Lopez opening	14	21.4%	46.4%
D52	QGD, Cambridge Springs defence, Argentine variation	14	21.4%	60.7%
C06	French, Tarrasch, Leningrad variation	14	21.4%	67.9%
E98	King's Indian, orthodox, Aronin-Taimanov, 9.Ne1	3670	21.3%	58.0%
A76	Benoni, classical, 9...Re8	33	21.2%	59.1%
E87	King's Indian, Saemisch, orthodox, 7.d5	217	21.2%	65.9%
C04	French, Tarrasch, Guimard main line	170	21.2%	59.4%
A56	Benoni defence, Hromodka system	655	20.9%	57.5%
C80	Ruy Lopez, open, 6.d4	24	20.8%	68.8%
B99	Sicilian, Najdorf, 7...Be7 main line	2094	20.6%	55.4%
D10	QGD Slav, Winawer counter-gambit	68	20.6%	64.7%
C67	Ruy Lopez, open Berlin defence, l'Hermet variation	39	20.5%	51.3%
B84	Sicilian, Scheveningen, classical, Nd7 system	44	20.5%	51.1%
E24	Nimzo-Indian, Saemisch variation	60	20.0%	55.0%
C26	Vienna game	55	20.0%	57.3%
E60	King's Indian, Anti-Gruenfeld	45	20.0%	50.0%
A43	Old Benoni, Mujannah formation	40	20.0%	60.0%
B02	Alekhine's defence, Saemisch attack	35	20.0%	55.7%
A09	Reti accepted, Keres variation	35	20.0%	67.1%
D07	QGD, Chigorin defence, Janowski variation	30	20.0%	70.0%
C52	Evans gambit, Tartakower attack	30	20.0%	46.7%
B72	Sicilian, dragon, classical, Nottingham variation	25	20.0%	46.0%
B29	Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit	25	20.0%	54.0%
E75	King's Indian, Averbakh, main line	25	20.0%	50.0%
A44	Semi-Benoni (`blockade variation')	20	20.0%	40.0%
B62	Sicilian, Richter-Rauzer, Podvebrady variation	15	20.0%	50.0%
C44	Scotch, Relfsson gambit ('MacLopez')	15	20.0%	36.7%
D31	QGD, Janowski variation	15	20.0%	56.7%
D45	QGD semi-Slav, stonewall defence	15	20.0%	63.3%
B13	Caro-Kann, Panov-Botvinnik, Czerniak variation	15	20.0%	56.7%
B45	Sicilian, Taimanov, American attack	10	20.0%	50.0%
C48	Four knights, Rubinstein counter-gambit, Bogolyubov variation	5	20.0%	70.0%
B32	Sicilian, Nimzovich variation	5	20.0%	70.0%
B12	de Bruycker defence	5	20.0%	30.0%
C65	Ruy Lopez, Berlin defence, Kaufmann variation	5	20.0%	70.0%
B77	Sicilian, dragon, Yugoslav attack, Byrne variation	5	20.0%	50.0%
C58	Two knights defence, Paoli variation	5	20.0%	70.0%
C15	French, Winawer, fingerslip variation	5	20.0%	70.0%
C12	French, MacCutcheon, Grigoriev variation	5	20.0%	30.0%
C41	Philidor, Hanham variation	5	20.0%	50.0%
C02	French, advance, Wade variation	181	19.9%	55.8%
C16	French, Winawer, Petrosian variation	106	19.8%	52.4%
E99	King's Indian, orthodox, Aronin-Taimanov, main line	157	19.7%	59.6%
A47	Queen's Indian, Marienbad system	51	19.6%	47.1%
A50	Queen's Indian accelerated	77	19.5%	64.3%
E15	Queen's Indian, Rubinstein variation	42	19.0%	54.8%
B12	Caro-Kann, Edinburgh variation	32	18.8%	68.8%
E89	King's Indian, Saemisch, orthodox main line	32	18.8%	62.5%
C39	KGA, Kieseritsky, Kolisch defence	16	18.8%	40.6%
D25	QGA, Flohr variation	70	18.6%	35.0%
C29	Vienna gambit, Breyer variation	27	18.5%	64.8%
C34	KGA, Fischer defence	38	18.4%	48.7%
A13	English, Wimpey system	60	18.3%	52.5%
C22	Centre game, Berger variation	202	18.3%	64.1%
A51	Budapest, Fajarowicz variation	11	18.2%	63.6%
C30	King's gambit	11	18.2%	45.5%
A58	Benko gambit, Nd2 variation	11	18.2%	54.5%
C83	Ruy Lopez, open, Malkin variation	11	18.2%	63.6%
E92	King's Indian, classical variation	11	18.2%	36.4%
C57	Two knights defence, Ulvestad variation	28	17.9%	55.4%
A12	English, Caro-Kann defensive system	45	17.8%	62.2%
C30	KGD, classical variation	45	17.8%	53.3%
C39	KGA, Kieseritsky, Berlin defence	23	17.4%	26.1%
A01	Nimzovich-Larsen attack	29	17.2%	60.3%
E92	King's Indian, Petrosian system	77	16.9%	55.2%
C00	St. George defence	36	16.7%	61.1%
A18	English, Mikenas-Carls, Flohr variation	24	16.7%	70.8%
C23	Bishop's opening, Classical variation	24	16.7%	54.2%
E26	Nimzo-Indian, Saemisch, O'Kelly variation	18	16.7%	58.3%
D44	QGD semi-Slav, anti-Meran, Alatortsev system	18	16.7%	63.9%
C74	Ruy Lopez, modern Steinitz defence, siesta variation	12	16.7%	50.0%
D26	QGA, classical, Steinitz variation	12	16.7%	75.0%
E87	King's Indian, Saemisch, orthodox, Bronstein variation	12	16.7%	41.7%
C33	KGA, bishop's gambit, Bledow variation	12	16.7%	16.7%
C13	French, classical, Tartakower variation	12	16.7%	66.7%
C22	Centre game	6	16.7%	91.7%
A74	Benoni, classical, 9...a6, 10.a4	6	16.7%	91.7%
B98	Sicilian, Najdorf, Goteborg (Argentine) variation	6	16.7%	25.0%
C13	French, classical, Anderssen-Richter variation	6	16.7%	25.0%
C70	Ruy Lopez, Schliemann defence deferred	6	16.7%	41.7%
C51	Evans gambit, Stone-Ware variation	6	16.7%	41.7%
D15	QGD Slav, Suechting variation	6	16.7%	58.3%
D51	QGD, Capablanca anti-Cambridge Springs variation	6	16.7%	25.0%
C02	French, advance, Nimzovich system	233	16.3%	45.5%
B00	KP, Nimzovich defence, Bogolyubov variation	68	16.2%	64.0%
A53	Old Indian, Janowski variation	41	14.6%	58.5%
D41	QGD, Semi-Tarrasch, San Sebastian variation	41	14.6%	73.2%
E07	Catalan, closed, Botvinnik variation	49	14.3%	60.2%
C55	Two knights defence, Perreux variation	21	14.3%	40.5%
C41	Philidor, Hanham, Steiner variation	14	14.3%	85.7%
D21	QGA, Alekhine defense, Borisenko-Furman variation	14	14.3%	64.3%
C95	Ruy Lopez, closed, Breyer, Simagin variation	7	14.3%	21.4%
D43	QGD semi-Slav, Hastings variation	7	14.3%	21.4%
D60	QGD, Orthodox defence, Rauzer variation	7	14.3%	64.3%
A06	Reti, old Indian attack	22	13.6%	43.2%
A00	Saragossa opening	37	13.5%	66.2%
C31	KGD, Nimzovich counter-gambit	8	12.5%	43.8%
C65	Ruy Lopez, Berlin defence, Mortimer variation	8	12.5%	56.3%
C14	French, classical variation	8	12.5%	18.8%
E15	Queen's Indian, Buerger variation	8	12.5%	18.8%
D06	Queen's Gambit	8	12.5%	68.8%
D53	QGD, 4.Bg5 Be7, 5.e3 O-O	8	12.5%	56.3%
C41	Philidor, Nimzovich (Jaenisch) variation	8	12.5%	81.3%
C57	Two knights defence	8	12.5%	43.8%
D33	QGD, Tarrasch, Schlechter-Rubinstein system	8	12.5%	81.3%
C33	KGA, bishop's gambit, Steinitz defence	8	12.5%	56.3%
A06	Santasiere's folly	8	12.5%	43.8%
A36	English, symmetrical variation	59	11.9%	53.4%
E40	Nimzo-Indian, 4.e3, Taimanov variation	45	11.1%	54.4%
C55	Two knights, Max Lange attack	18	11.1%	50.0%
C34	KGA, Schallop defence	18	11.1%	27.8%
B64	Sicilian, Richter-Rauzer, Rauzer attack, Geller variation	9	11.1%	83.3%
C58	Two knights defence, Bogolyubov variation	9	11.1%	61.1%
A80	Dutch, Manhattan (Alapin, Ulvestad) variation	9	11.1%	16.7%
B00	Lemming defence	9	11.1%	83.3%
B80	Sicilian, Scheveningen, Vitolins variation	37	10.8%	40.5%
B53	Sicilian, Chekhover, Zaitsev variation	19	10.5%	52.6%
A45	Paleface attack	20	10.0%	30.0%
C42	Petrov, classical attack, Berger variation	10	10.0%	55.0%
D05	Queen's pawn game, Zukertort variation	21	9.5%	66.7%
B10	Caro-Kann, Goldman (Spielmann) variation	11	9.1%	50.0%
A00	Polish, Outflank variation	11	9.1%	50.0%
C60	Ruy Lopez (Spanish opening)	23	8.7%	47.8%
C34	KGA, Becker defence	12	8.3%	45.8%
C13	French, classical	12	8.3%	45.8%
B03	Alekhine's defence, four pawns attack	12	8.3%	70.8%
C79	Ruy Lopez, Steinitz defence deferred, Rubinstein variation	13	7.7%	57.7%
B12	Caro-Kann, advance, Short variation	13	7.7%	73.1%
A02	Bird's opening	28	7.1%	64.3%
B40	Sicilian, Pin variation (Sicilian counter-attack)	14	7.1%	67.9%
C42	Petrov, Cochrane gambit	15	6.7%	23.3%
A24	English, Bremen system with ...g6	18	5.6%	69.4%
C12	French, MacCutcheon, Dr. Olland (Dutch) variation	18	5.6%	52.8%
E83	King's Indian, Saemisch, Panno formation	22	4.5%	56.8%
B74	Sicilian, dragon, classical, Alekhine variation	23	0.0%	60.9%
C53	Giuoco Piano, centre-holding variation	12	0.0%	58.3%
D18	QGD Slav, Dutch, Lasker variation	11	0.0%	45.5%
E60	King's Indian, 3.g3, counterthrust variation	9	0.0%	55.6%
E23	Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc6	8	0.0%	75.0%
D83	Gruenfeld, Gruenfeld gambit, Botvinnik variation	7	0.0%	42.9%
C48	Four knights, Rubinstein counter-gambit, 5.Be2	7	0.0%	57.1%
C44	Scotch gambit	7	0.0%	42.9%
C30	KGD, Mafia defence	6	0.0%	83.3%
B03	Alekhine's defence, four pawns attack, Trifunovic variation	6	0.0%	66.7%
C27	Boden-Kieseritsky gambit	6	0.0%	66.7%
A01	Nimzovich-Larsen attack, Dutch variation	6	0.0%	33.3%
C51	Evans gambit, Paulsen variation	6	0.0%	33.3%
D00	Queen's pawn, stonewall attack	6	0.0%	33.3%
B00	Reversed Grob (Borg/Basman defence/macho Grob)	5	0.0%	100.0%
C88	Ruy Lopez, closed, 7...d6, 8.d4	5	0.0%	40.0%
A00	Ware (Meadow Hay) opening	5	0.0%	40.0%
A92	Dutch, stonewall with Nc3	5	0.0%	40.0%
A04	Reti, Lisitsin gambit deferred	5	0.0%	60.0%
C60	Ruy Lopez, Lucena defence	5	0.0%	60.0%
D01	Richter-Veresov attack, Richter variation	5	0.0%	60.0%
A00	Lasker simul special	5	0.0%	60.0%
D31	QGD, Alapin variation	5	0.0%	40.0%
E03	Catalan, open, Alekhine variation	5	0.0%	40.0%
A18	English, Mikenas-Carls, Kevitz variation	5	0.0%	20.0%
C80	Ruy Lopez, open, Harksen gambit	5	0.0%	40.0%
C44	Ponziani, Steinitz variation	5	0.0%	60.0%
D63	QGD, Orthodox defence, Capablanca variation	4	0.0%	25.0%
B40	Sicilian, Marshall variation	4	0.0%	25.0%
B02	Alekhine's defence, Welling variation	4	0.0%	25.0%
C89	Ruy Lopez, Marshall, Kevitz variation	4	0.0%	25.0%
E36	Nimzo-Indian, classical, Botvinnik variation	4	0.0%	50.0%
C51	Evans gambit declined	4	0.0%	75.0%
C37	KGA, Blachly gambit	4	0.0%	50.0%
A51	Budapest defence declined	4	0.0%	100.0%
C33	KGA, Breyer gambit	4	0.0%	0.0%
B09	Pirc, Austrian attack, Ljubojevic variation	4	0.0%	100.0%
C80	Ruy Lopez, open, Zukertort variation	4	0.0%	50.0%
C78	Ruy Lopez, Wing attack	4	0.0%	50.0%
C51	Evans gambit declined, Cordel variation	4	0.0%	25.0%
B13	Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation	3	0.0%	100.0%
B02	Alekhine's defence, Spielmann variation	3	0.0%	66.7%
C25	Vienna, Steinitz gambit	3	0.0%	66.7%
A02	Bird, From gambit	3	0.0%	33.3%
C39	KGA, Kieseritsky, Neumann defence	3	0.0%	66.7%
C11	French, Steinitz, Bradford attack	3	0.0%	66.7%
E11	Bogo-Indian defence, Monticelli trap	3	0.0%	66.7%
C44	Scotch opening	3	0.0%	66.7%
A68	Benoni, four pawns attack	3	0.0%	66.7%
C50	Rousseau gambit	3	0.0%	66.7%
C57	Two knights defence, Fritz variation	3	0.0%	0.0%
C82	Ruy Lopez, open, Motzko attack, Nenarokov variation	3	0.0%	33.3%
A83	Dutch, Staunton gambit, Lasker variation	3	0.0%	66.7%
C14	French, classical, Pollock variation	3	0.0%	33.3%
C20	KP, Indian opening	3	0.0%	33.3%
E24	Nimzo-Indian, Saemisch, Botvinnik variation	3	0.0%	66.7%
C52	Evans gambit, Waller attack	3	0.0%	66.7%
C43	Petrov, modern attack, Bardeleben variation	3	0.0%	66.7%
C52	Evans gambit, compromised defence, Paulsen variation	3	0.0%	66.7%
C41	Philidor, Nimzovich, Sokolsky variation	3	0.0%	33.3%
C51	Evans gambit, normal variation	3	0.0%	33.3%
A81	Dutch, Leningrad, Karlsbad variation	3	0.0%	66.7%
C53	Giuoco Piano, LaBourdonnais variation	3	0.0%	100.0%
C25	Vienna, Pierce gambit	3	0.0%	0.0%
C24	Bishop's opening, Urusov gambit, Panov variation	3	0.0%	100.0%
C33	KGA, Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit	2	0.0%	50.0%
C23	Bishop's opening, Lewis counter-gambit	2	0.0%	0.0%
A52	Budapest defence	2	0.0%	50.0%
C29	Vienna gambit, Paulsen attack	2	0.0%	100.0%
D08	QGD, Albin counter-gambit, Alapin variation	2	0.0%	100.0%
D34	QGD, Tarrasch, Stoltz variation	2	0.0%	100.0%
B00	St. George (Baker) defence	2	0.0%	100.0%
C58	Two knights defence, Colman variation	2	0.0%	50.0%
C38	King's knight's gambit	2	0.0%	0.0%
C37	KGA, Quaade gambit	2	0.0%	0.0%
C25	Vienna, Hamppe-Allgaier gambit	2	0.0%	0.0%
C30	KGD, 2...Nf6	2	0.0%	0.0%
A83	Dutch, Staunton gambit, Nimzovich variation	2	0.0%	50.0%
C29	Vienna gambit, Bardeleben variation	2	0.0%	0.0%
C13	French, classical, Vistaneckis (Nimzovich) variation	2	0.0%	0.0%
D51	QGD, Alekhine variation	2	0.0%	50.0%
C55	Two knights, Max Lange attack, Schlechter variation	2	0.0%	50.0%
C30	KGD, Keene's defence	2	0.0%	50.0%
C44	Inverted Hungarian	2	0.0%	100.0%
C33	KGA, bishop's gambit, Morphy variation	2	0.0%	0.0%
B03	Alekhine's defence, four pawns attack, 6...Nc6	2	0.0%	50.0%
C33	KGA, bishop's gambit, McDonnell attack	2	0.0%	100.0%
C45	Scotch, Paulsen attack	2	0.0%	0.0%
C31	KGD, Falkbeer counter-gambit	2	0.0%	50.0%
C36	KGA, Abbazia defence (classical defence, modern defence[!])	2	0.0%	50.0%
B13	Caro-Kann, Panov-Botvinnik, Gunderam attack	2	0.0%	100.0%
C32	KGD, Falkbeer, 5.de	2	0.0%	50.0%
C24	Bishop's opening, Ponziani gambit	2	0.0%	0.0%
C31	KGD, Falkbeer, Morphy gambit	2	0.0%	50.0%
B21	Sicilian, Andreaschek gambit	2	0.0%	50.0%
C33	KGA, bishop's gambit, Paulsen attack	2	0.0%	50.0%
D86	Gruenfeld, exchange, Larsen variation	2	0.0%	0.0%
B03	Alekhine's defence, four pawns attack, Ilyin-Genevsky var.	2	0.0%	50.0%
C67	Ruy Lopez, Berlin defence, Zukertort variation	2	0.0%	0.0%
C61	Ruy Lopez, Bird's defence, Paulsen variation	2	0.0%	0.0%
C51	Evans gambit, Morphy attack	1	0.0%	0.0%
E77	King's Indian, Six pawns attack	1	0.0%	100.0%
C37	KGA, Rosentreter gambit	1	0.0%	0.0%
A06	Tennison (Lemberg, Zukertort) gambit	1	0.0%	100.0%
C77	Ruy Lopez, Wormald attack, Gruenfeld variation	1	0.0%	100.0%
A70	Benoni, classical without 9.O-O	1	0.0%	100.0%
C78	Ruy Lopez, Rabinovich variation	1	0.0%	100.0%
A02	Bird's opening, Swiss gambit	1	0.0%	0.0%
C39	King's knight's gambit	1	0.0%	0.0%
B01	Scandinavian, Mieses-Kotrvc gambit	1	0.0%	0.0%
C31	KGD, Falkbeer, 4.d3	1	0.0%	100.0%
C32	KGD, Falkbeer, Charousek gambit	1	0.0%	0.0%
B20	Sicilian, wing gambit, Carlsbad variation	1	0.0%	0.0%
C83	Ruy Lopez, open, Breslau variation	1	0.0%	100.0%
C37	KGA, Muzio gambit	1	0.0%	0.0%
C37	KGA, Muzio gambit, Brentano defence	1	0.0%	0.0%
C33	KGA, bishop's gambit, Lopez-Gianutio counter-gambit	1	0.0%	100.0%
C33	KGA, bishop's gambit, Maurian defence	1	0.0%	100.0%
B20	Sicilian, Gloria variation	1	0.0%	0.0%
C45	Scotch, Rosenthal variation	1	0.0%	0.0%
C57	Two knights defence, Fegatello attack, Leonhardt variation	1	0.0%	0.0%
C44	Konstantinopolsky opening	1	0.0%	0.0%
C55	Giuoco piano, Holzhausen attack	1	0.0%	100.0%
C49	Four knights, Gunsberg counter-attack	1	0.0%	100.0%
C02	French, advance, Nimzovich variation	1	0.0%	0.0%
C51	Evans gambit declined, Showalter variation	1	0.0%	0.0%
C64	Ruy Lopez, classical defence, Charousek variation	1	0.0%	0.0%
D33	QGD, Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation	1	0.0%	0.0%
D32	QGD, Tarrasch defence, Tarrasch gambit	1	0.0%	0.0%
C33	KGA, bishop's gambit, Boren-Svenonius variation	1	0.0%	0.0%
D31	QGD, semi-Slav, Junge variation	1	0.0%	100.0%
E09	Catalan, closed, Sokolsky variation	1	0.0%	100.0%
C38	KGA, Hanstein gambit	1	0.0%	100.0%
C42	Petrov, classical attack, Maroczy variation	1	0.0%	100.0%
C44	Ponziani, Leonhardt variation	1	0.0%	100.0%
C67	Ruy Lopez, Berlin defence, Trifunovic variation	1	0.0%	100.0%
B27	Sicilian, Quinteros variation	1	0.0%	100.0%
D55	QGD, Pillsbury attack	1	0.0%	100.0%
B02	Alekhine's defence, Kmoch variation	1	0.0%	100.0%
B15	Caro-Kann, Gurgenidze counter-attack	1	0.0%	100.0%
D00	Blackmar-Diemer gambit	1	0.0%	100.0%
C50	Hungarian defence, Tartakower variation	1	0.0%	100.0%
C38	KGA, Philidor gambit, Schultz variation	1	0.0%	0.0%
C41	Philidor, Boden variation	1	0.0%	0.0%
C01	French, exchange, Bogolyubov variation	1	0.0%	100.0%
E08	Catalan, closed, Spassky gambit	1	0.0%	100.0%
C36	KGA, Abbazia defence, Botvinnik variation	1	0.0%	100.0%
C51	Evans gambit, Steinitz variation	1	0.0%	0.0%
C51	Evans gambit	1	0.0%	0.0%
C52	Evans gambit, Richardson attack	1	0.0%	0.0%
C41	Philidor, Lopez counter-gambit	1	0.0%	100.0%
B01	Scandinavian, Anderssen counter-attack, Goteborg system	1	0.0%	100.0%
B73	Sicilian, dragon, classical, Zollner gambit	1	0.0%	0.0%
A03	Bird's opening, Lasker variation	1	0.0%	100.0%
C37	KGA, Muzio gambit, From defence	1	0.0%	0.0%
C89	Ruy Lopez, Marshall, Herman Steiner variation	1	0.0%	0.0%
C57	Two knights defence, Fegatello attack	1	0.0%	0.0%
C33	King's gambit accepted	1	0.0%	100.0%
C26	Vienna, Mengarini variation	1	0.0%	100.0%
C30	KGD, classical, Reti variation	1	0.0%	100.0%
C54	Giuoco Piano, Greco's attack	1	0.0%	0.0%
C25	Vienna, Steinitz gambit, Fraser-Minckwitz variation	1	0.0%	100.0%
C21	Danish gambit, Collijn defence	1	0.0%	0.0%
D12	QGD Slav, Landau variation	1	0.0%	0.0%
C58	Two knights defence, Yankovich variation	1	0.0%	0.0%
C55	Two knights, Max Lange attack, Steinitz variation	1	0.0%	100.0%
C49	Four knights, Svenonius variation	1	0.0%	100.0%
C41	Philidor, Hanham, Kmoch variation	1	0.0%	0.0%
C14	French, classical, Tarrasch variation	1	0.0%	100.0%
C54	Giuoco Piano, Moeller (Therkatz) attack	1	0.0%	100.0%
C46	Three knights, Schlechter variation	1	0.0%	100.0%
A52	Budapest, Alekhine, Abonyi variation	1	0.0%	100.0%
B27	Sicilian, Acton extension	1	0.0%	0.0%
D53	QGD, Lasker variation	1	0.0%	0.0%
C39	KGA, Allgaier gambit	1	0.0%	100.0%