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	Bare PGN
A01	Nimzovich-Larsen attack, symmetrical variation	4	100.0%	50.0%	0.00 MB
B34	Sicilian, accelerated fianchetto, exchange variation	3	100.0%	50.0%	0.00 MB
C45	Scotch, Horwitz attack	3	100.0%	50.0%	0.00 MB
B02	Alekhine's defence, Krejcik variation	3	100.0%	50.0%	0.00 MB
C48	Four knights, Rubinstein counter-gambit, Henneberger variation	3	100.0%	50.0%	0.00 MB
D52	QGD, Cambridge Springs defence	2	100.0%	50.0%	0.00 MB
C79	Ruy Lopez, Steinitz defence deferred, Lipnitsky variation	2	100.0%	50.0%	0.00 MB
A03	Bird's opening	2	100.0%	50.0%	0.00 MB
B15	Caro-Kann, Rasa-Studier gambit	2	100.0%	50.0%	0.00 MB
C51	Evans gambit, 5...Be7	2	100.0%	50.0%	0.00 MB
A83	Dutch, Staunton gambit, Chigorin variation	1	100.0%	50.0%	0.00 MB
D30	QGD, Spielmann variation	1	100.0%	50.0%	0.00 MB
C44	Scotch, Goering gambit, Bardeleben variation	1	100.0%	50.0%	0.00 MB
C20	King's pawn game	1	100.0%	50.0%	0.00 MB
C45	Scotch, Steinitz variation	1	100.0%	50.0%	0.00 MB
A16	English, Anglo-Gruenfeld defense, Korchnoi variation	1	100.0%	50.0%	0.00 MB
B32	Sicilian, Nimzovich variation	1	100.0%	50.0%	0.00 MB
C39	KGA, Kieseritsky, Brentano defence, Kaplanek variation	1	100.0%	50.0%	0.00 MB
A38	English, symmetrical, main line with b3	1	100.0%	50.0%	0.00 MB
C20	KP, King's head opening	1	100.0%	50.0%	0.00 MB
C30	King's gambit	1	100.0%	50.0%	0.00 MB
B05	Alekhine's defence, modern, Panov variation	1	100.0%	50.0%	0.00 MB
C39	KGA, Kieseritsky, Salvio (Rosenthal) defence	1	100.0%	50.0%	0.00 MB
E23	Nimzo-Indian, Spielmann, San Remo variation	1	100.0%	50.0%	0.00 MB
D67	QGD, Orthodox defence, Bd3 line, Janowski variation	1	100.0%	50.0%	0.00 MB
B05	Alekhine's defence, modern, Alekhine variation	1	100.0%	50.0%	0.00 MB
C59	Two knights defence, Goering variation	1	100.0%	50.0%	0.00 MB
C27	Vienna, `Frankenstein-Dracula' variation	1	100.0%	50.0%	0.00 MB
C67	Ruy Lopez, Berlin defence, Cordel variation	1	100.0%	50.0%	0.00 MB
C70	Ruy Lopez	1	100.0%	50.0%	0.00 MB
C15	French, Winawer, Alekhine gambit, Alatortsev variation	1	100.0%	50.0%	0.00 MB
D60	QGD, Orthodox defence, Rauzer variation	1	100.0%	50.0%	0.00 MB
C12	French, MacCutcheon, Tartakower variation	1	100.0%	50.0%	0.00 MB
C12	French, MacCutcheon, Chigorin variation	1	100.0%	50.0%	0.00 MB
C41	Philidor, Steinitz variation	1	100.0%	50.0%	0.00 MB
D48	QGD semi-Slav, Meran, Pirc variation	4	75.0%	62.5%	0.00 MB
C80	Ruy Lopez, open, Bernstein variation, Karpov gambit	11	72.7%	63.6%	0.00 MB
D52	QGD	18	72.2%	58.3%	0.01 MB
C51	Evans gambit, Cordel variation	9	66.7%	44.4%	0.00 MB
D68	QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)	9	66.7%	55.6%	0.00 MB
C83	Ruy Lopez, open, 9...Be7, 10.Re1	6	66.7%	66.7%	0.00 MB
B24	Sicilian, closed, Smyslov variation	3	66.7%	66.7%	0.00 MB
B71	Sicilian, dragon, Levenfish; Flohr variation	3	66.7%	33.3%	0.00 MB
E78	King's Indian, Four pawns attack, with Be2 and Nf3	3	66.7%	33.3%	0.00 MB
C14	French, classical, Alapin variation	3	66.7%	33.3%	0.00 MB
C58	Two knights defence, Kieseritsky variation	3	66.7%	33.3%	0.00 MB
C48	Four knights, Marshall variation	3	66.7%	66.7%	0.00 MB
C45	Scotch, Blackburne attack	3	66.7%	66.7%	0.00 MB
C67	Ruy Lopez, Berlin defence, Pillsbury variation	3	66.7%	33.3%	0.00 MB
C15	French, Winawer, Kondratiyev variation	3	66.7%	66.7%	0.00 MB
C53	Giuoco Piano, Anderssen variation	3	66.7%	66.7%	0.00 MB
D69	QGD, Orthodox defence, classical, 13.de	14	64.3%	53.6%	0.00 MB
B01	Scandinavian, Icelandic gambit	14	64.3%	60.7%	0.01 MB
A28	English, Nenarokov variation	13	61.5%	53.8%	0.00 MB
D70	Neo-Gruenfeld (Kemeri) defence	13	61.5%	53.8%	0.00 MB
B02	Alekhine's defence, Maroczy variation	10	60.0%	40.0%	0.00 MB
C67	Ruy Lopez, Berlin defence, Winawer attack	5	60.0%	50.0%	0.00 MB
C54	Giuoco Piano	5	60.0%	30.0%	0.00 MB
C11	French, Steinitz, Gledhill attack	5	60.0%	50.0%	0.00 MB
C41	Philidor, Philidor counter-gambit, Zukertort variation	5	60.0%	30.0%	0.00 MB
B15	Caro-Kann, Forgacs variation	17	58.8%	41.2%	0.01 MB
C44	Scotch, Goering gambit	12	58.3%	45.8%	0.00 MB
C94	Ruy Lopez, closed, Breyer defence	23	56.5%	54.3%	0.01 MB
D81	Gruenfeld, Russian variation	16	56.3%	53.1%	0.01 MB
A13	English, Romanishin gambit	27	55.6%	53.7%	0.01 MB
E29	Nimzo-Indian, Saemisch, main line	18	55.6%	44.4%	0.01 MB
A59	Benko gambit, 7.e4	9	55.6%	50.0%	0.00 MB
C13	French, Albin-Alekhine-Chatard attack, Breyer variation	20	55.0%	47.5%	0.01 MB
B09	Pirc, Austrian attack, dragon formation	117	53.8%	55.1%	0.03 MB
D44	QGD semi-Slav, 5.Bg5 dc	43	53.5%	57.0%	0.01 MB
E92	King's Indian, Andersson variation	103	53.4%	49.0%	0.02 MB
A05	Reti, King's Indian attack, Reti-Smyslov variation	17	52.9%	61.8%	0.01 MB
C47	Four knights, Scotch, Krause variation	17	52.9%	50.0%	0.00 MB
D33	QGD, Tarrasch, Folkestone (Swedish) variation	19	52.6%	42.1%	0.01 MB
D94	Gruenfeld, Opovcensky variation	42	52.4%	50.0%	0.01 MB
D28	QGA, classical, 7.Qe2	21	52.4%	54.8%	0.01 MB
C12	French, MacCutcheon variation	36	50.0%	44.4%	0.01 MB
C74	Ruy Lopez, Siesta, Kopayev variation	30	50.0%	48.3%	0.01 MB
D74	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O	28	50.0%	53.6%	0.01 MB
E10	Dzindzikhashvili defence	26	50.0%	40.4%	0.01 MB
C80	Ruy Lopez, open, Riga variation	20	50.0%	50.0%	0.00 MB
B02	Alekhine's defence, Two pawns' (Lasker's) attack	16	50.0%	62.5%	0.01 MB
B23	Sicilian, Grand Prix attack, Schofman variation	14	50.0%	46.4%	0.00 MB
D15	QGD Slav accepted	14	50.0%	60.7%	0.01 MB
B23	Sicilian, closed, Korchnoi variation	14	50.0%	39.3%	0.00 MB
C82	Ruy Lopez, open, Italian variation	14	50.0%	53.6%	0.00 MB
D30	QGD Slav, Semmering variation	12	50.0%	58.3%	0.00 MB
D30	QGD, Capablanca variation	12	50.0%	58.3%	0.00 MB
E17	Queen's Indian, 5.Bg2 Be7	10	50.0%	45.0%	0.00 MB
A52	Budapest, Adler variation	8	50.0%	75.0%	0.00 MB
D57	QGD, Lasker defence, main line	8	50.0%	37.5%	0.00 MB
D09	QGD, Albin counter-gambit, 5.g3	6	50.0%	41.7%	0.00 MB
E23	Nimzo-Indian, Spielmann, Karlsbad variation	6	50.0%	58.3%	0.00 MB
C25	Vienna gambit	6	50.0%	58.3%	0.00 MB
C07	French, Tarrasch, Eliskases variation	6	50.0%	58.3%	0.00 MB
C27	Vienna game	6	50.0%	25.0%	0.00 MB
E03	Catalan, open, 5.Qa4 Nbd7, 6.Qxc4	6	50.0%	25.0%	0.00 MB
C80	Ruy Lopez, open, Friess attack	6	50.0%	58.3%	0.00 MB
D54	QGD, Anti-neo-orthodox variation	6	50.0%	25.0%	0.00 MB
D51	QGD	4	50.0%	50.0%	0.00 MB
A44	Semi-Benoni (`blockade variation')	4	50.0%	50.0%	0.00 MB
B15	Caro-Kann, Alekhine gambit	4	50.0%	50.0%	0.00 MB
C67	Ruy Lopez, Berlin defence, Rio de Janeiro variation	4	50.0%	75.0%	0.00 MB
C44	Inverted Hanham	4	50.0%	50.0%	0.00 MB
C70	Ruy Lopez, Cozio defence deferred	4	50.0%	75.0%	0.00 MB
E27	Nimzo-Indian, Saemisch variation	4	50.0%	50.0%	0.00 MB
D66	QGD, Orthodox defence, Bd3 line, fianchetto variation	4	50.0%	75.0%	0.00 MB
B85	Sicilian, Scheveningen, classical variation with ...Qc7 and ...Nc6	4	50.0%	25.0%	0.00 MB
C47	Four knights, Scotch variation	4	50.0%	75.0%	0.00 MB
C23	Bishop's opening, Philidor variation	4	50.0%	50.0%	0.00 MB
B13	Caro-Kann, Panov-Botvinnik, Reifir (Spielmann) variation	2	50.0%	75.0%	0.00 MB
C27	Boden-Kieseritsky gambit, Lichtenhein defence	2	50.0%	25.0%	0.00 MB
C58	Two knights defence, Colman variation	2	50.0%	25.0%	0.00 MB
A21	English, Keres variation	2	50.0%	75.0%	0.00 MB
C41	Philidor, Hanham, Delmar variation	2	50.0%	75.0%	0.00 MB
A03	Bird's opening, Williams gambit	2	50.0%	25.0%	0.00 MB
D63	QGD, Orthodox defence, Pillsbury attack	2	50.0%	75.0%	0.00 MB
D50	QGD, Semi-Tarrasch	2	50.0%	75.0%	0.00 MB
C48	Four knights, Bardeleben variation	2	50.0%	25.0%	0.00 MB
B03	Alekhine's defence, exchange, Karpov variation	2	50.0%	75.0%	0.00 MB
A47	Queen's Indian, Marienbad system, Berg variation	2	50.0%	25.0%	0.00 MB
C39	KGA, Kieseritsky, Rice gambit	2	50.0%	25.0%	0.00 MB
D64	QGD, Orthodox defence, Rubinstein attack, Karlsbad variation	2	50.0%	25.0%	0.00 MB
A57	Benko gambit, Nescafe Frappe attack	2	50.0%	25.0%	0.00 MB
D32	QGD, Tarrasch defence, Marshall gambit	2	50.0%	75.0%	0.00 MB
C44	Ponziani, Caro variation	2	50.0%	25.0%	0.00 MB
C25	Vienna game, Max Lange defence	2	50.0%	25.0%	0.00 MB
C14	French, classical, Stahlberg variation	2	50.0%	75.0%	0.00 MB
D15	QGD Slav, Slav gambit	2	50.0%	25.0%	0.00 MB
A66	Benoni, pawn storm variation	2	50.0%	25.0%	0.00 MB
C12	French, MacCutcheon, advance variation	2	50.0%	75.0%	0.00 MB
D71	Neo-Gruenfeld, 5.cd	59	49.2%	56.8%	0.02 MB
C26	Vienna, Paulsen-Mieses variation	49	49.0%	63.3%	0.01 MB
D59	QGD, Tartakower variation	136	48.5%	42.6%	0.03 MB
C48	Four knights, Rubinstein counter-gambit, exchange variation	31	48.4%	46.8%	0.01 MB
D28	QGA, classical, 7...b5	29	48.3%	37.9%	0.01 MB
D14	QGD Slav, exchange, Trifunovic variation	29	48.3%	65.5%	0.01 MB
C45	Scotch, Schmidt variation	100	48.0%	44.0%	0.02 MB
A90	Dutch-Indian, Alekhine variation	25	48.0%	44.0%	0.01 MB
E51	Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d5	25	48.0%	60.0%	0.01 MB
C23	Bishop's opening, Philidor counter-attack	23	47.8%	71.7%	0.01 MB
D60	QGD, Orthodox defence, Botvinnik variation	21	47.6%	47.6%	0.01 MB
B10	Caro-Kann, anti-anti-Caro-Kann defence	454	47.1%	51.5%	0.10 MB
C50	Giuoco Pianissimo, Canal variation	51	47.1%	56.9%	0.01 MB
B13	Caro-Kann, exchange, Rubinstein variation	34	47.1%	61.8%	0.01 MB
A56	Czech Benoni, King's Indian system	17	47.1%	64.7%	0.01 MB
A12	English, Torre defensive system	17	47.1%	52.9%	0.00 MB
D67	QGD, Orthodox defence, Bd3 line, Alekhine variation	100	47.0%	60.5%	0.03 MB
C21	Centre game	126	46.8%	65.5%	0.03 MB
C49	Four knights, double Ruy Lopez	73	46.6%	50.7%	0.02 MB
D55	QGD, Petrosian variation	288	46.5%	55.6%	0.06 MB
D68	QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)	67	46.3%	54.5%	0.02 MB
A63	Benoni, fianchetto, 9...Nbd7	26	46.2%	57.7%	0.01 MB
C53	Giuoco Piano, close variation	13	46.2%	69.2%	0.00 MB
C11	French, Swiss variation	24	45.8%	31.3%	0.01 MB
D88	Gruenfeld, Spassky variation, main line, 10...cd, 11.cd	55	45.5%	55.5%	0.01 MB
D63	QGD, Orthodox defence, 7.Rc1	44	45.5%	61.4%	0.01 MB
A42	Modern defence, Averbakh system, Kotov variation	11	45.5%	68.2%	0.00 MB
C42	Petrov, classical attack, Chigorin variation	216	45.4%	55.1%	0.05 MB
D30	QGD, Vienna variation	42	45.2%	51.2%	0.01 MB
C75	Ruy Lopez, modern Steinitz defence, Rubinstein variation	29	44.8%	60.3%	0.01 MB
C42	Petrov, Kaufmann attack	29	44.8%	60.3%	0.01 MB
D26	QGA, 4...e6	128	44.5%	54.3%	0.03 MB
D02	Queen's pawn game, Chigorin variation	54	44.4%	59.3%	0.02 MB
D05	Queen's pawn game, Rubinstein (Colle-Zukertort) variation	36	44.4%	50.0%	0.01 MB
D67	QGD, Orthodox defence, Bd3 line	27	44.4%	59.3%	0.01 MB
A92	Dutch defence, Alekhine variation	18	44.4%	61.1%	0.01 MB
A16	English, Anglo-Gruenfeld, Smyslov defense	9	44.4%	55.6%	0.00 MB
D02	Queen's pawn game, Krause variation	70	44.3%	56.4%	0.02 MB
D26	QGA, classical variation	218	44.0%	51.4%	0.05 MB
E29	Nimzo-Indian, Saemisch, Capablanca variation	41	43.9%	46.3%	0.01 MB
B52	Sicilian, Canal-Sokolsky attack, Sokolsky variation	267	43.8%	57.9%	0.06 MB
B73	Sicilian, dragon, classical, Richter variation	48	43.8%	53.1%	0.01 MB
C43	Petrov, modern attack, Trifunovic variation	16	43.8%	53.1%	0.01 MB
C42	Petrov, classical attack, Mason variation	16	43.8%	65.6%	0.01 MB
C63	Ruy Lopez, Schliemann defence	16	43.8%	46.9%	0.00 MB
C47	Four knights, Scotch, 4...exd4	202	43.6%	49.5%	0.05 MB
A28	English, four knights, Nimzovich variation	85	43.5%	54.7%	0.02 MB
E17	Queen's Indian, anti-Queen's Indian system	88	43.2%	56.8%	0.02 MB
B37	Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg7	44	43.2%	46.6%	0.01 MB
D41	QGD, Semi-Tarrasch with e3	44	43.2%	42.0%	0.01 MB
D55	QGD, Neo-orthodox variation, 7.Bh4	58	43.1%	54.3%	0.02 MB
B59	Sicilian, Boleslavsky variation, 7.Nb3	56	42.9%	51.8%	0.01 MB
C42	Petrov three knights game	49	42.9%	60.2%	0.01 MB
C65	Ruy Lopez, Berlin defence, Nyholm attack	35	42.9%	52.9%	0.01 MB
C61	Ruy Lopez, Bird's defence	21	42.9%	64.3%	0.01 MB
D64	QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation	21	42.9%	54.8%	0.01 MB
D95	Gruenfeld with e3 & Qb3	21	42.9%	50.0%	0.01 MB
A16	English, Anglo-Gruenfeld defense	21	42.9%	50.0%	0.01 MB
A40	Queen's pawn, Lundin (Kevitz-Mikenas) defence	14	42.9%	57.1%	0.00 MB
A04	Reti, Pirc-Lisitsin gambit	7	42.9%	50.0%	0.00 MB
A01	Nimzovich-Larsen attack, English variation	7	42.9%	35.7%	0.00 MB
D07	QGD, Chigorin defence, Janowski variation	7	42.9%	35.7%	0.00 MB
B41	Sicilian, Kan, Maroczy bind - Bronstein variation	7	42.9%	78.6%	0.00 MB
E92	King's Indian, classical variation	7	42.9%	50.0%	0.00 MB
E34	Nimzo-Indian, classical, Noa variation	185	42.7%	50.5%	0.05 MB
D67	QGD, Orthodox defence, Bd3 line, 11.O-O	75	42.7%	64.0%	0.02 MB
B14	Caro-Kann, Panov-Botvinnik attack, 5...g6	108	42.6%	58.3%	0.03 MB
D16	QGD Slav, Steiner variation	92	42.4%	54.9%	0.02 MB
B28	Sicilian, O'Kelly variation	59	42.4%	55.1%	0.01 MB
B01	Scandinavian gambit	26	42.3%	48.1%	0.01 MB
C60	Ruy Lopez, Cozio defence	26	42.3%	55.8%	0.01 MB
B57	Sicilian, Sozin, not Scheveningen	123	42.3%	56.9%	0.03 MB
C89	Ruy Lopez, Marshall counter-attack	45	42.2%	65.6%	0.01 MB
E05	Catalan, open, classical line	64	42.2%	46.1%	0.02 MB
B18	Caro-Kann, classical, Flohr variation	19	42.1%	52.6%	0.01 MB
C44	Ponziani, Jaenisch counter-attack	31	41.9%	53.2%	0.01 MB
D25	QGA, 4.e3	43	41.9%	62.8%	0.01 MB
D97	Gruenfeld, Russian, Byrne (Simagin) variation	79	41.8%	55.1%	0.02 MB
C28	Vienna game	48	41.7%	54.2%	0.01 MB
C89	Ruy Lopez, Marshall, main line, 14...Qh3	36	41.7%	51.4%	0.01 MB
C83	Ruy Lopez, open, classical defence	24	41.7%	75.0%	0.01 MB
A59	Benko gambit, Ne2 variation	12	41.7%	62.5%	0.00 MB
D00	Queen's pawn, Chigorin variation	12	41.7%	54.2%	0.00 MB
C41	Philidor, Nimzovich, Sozin variation	12	41.7%	54.2%	0.00 MB
C71	Ruy Lopez, modern Steinitz defence, Duras (Keres) variation	65	41.5%	54.6%	0.02 MB
C65	Ruy Lopez, Berlin defence, Beverwijk variation	94	41.5%	49.5%	0.03 MB
E01	Catalan, closed	123	41.5%	53.3%	0.03 MB
A36	English, symmetrical, Botvinnik system reversed	29	41.4%	55.2%	0.01 MB
B05	Alekhine's defence, modern, Flohr variation	63	41.3%	61.9%	0.02 MB
B53	Sicilian, Chekhover variation	194	41.2%	49.5%	0.05 MB
D32	QGD, Tarrasch, von Hennig-Schara gambit	17	41.2%	61.8%	0.01 MB
E79	King's Indian, Four pawns attack, main line	17	41.2%	38.2%	0.00 MB
E17	Queen's Indian, Euwe variation	17	41.2%	61.8%	0.01 MB
C59	Two knights defence	17	41.2%	38.2%	0.00 MB
D93	Gruenfeld with Bf4 e3	175	41.1%	60.6%	0.04 MB
B13	Caro-Kann, Panov-Botvinnik, normal variation	39	41.0%	61.5%	0.01 MB
B01	Scandinavian, Pytel-Wade variation	100	41.0%	60.5%	0.02 MB
C09	French, Tarrasch, open variation, main line	1123	40.9%	56.1%	0.24 MB
E20	Nimzo-Indian, Romanishin-Kasparov (Steiner) system	164	40.9%	47.9%	0.04 MB
D85	Gruenfeld, modern exchange variation	2491	40.7%	56.4%	0.45 MB
C57	Two knights defence, Fritz, Gruber variation	32	40.6%	54.7%	0.01 MB
A30	English, symmetrical, hedgehog, flexible formation	165	40.6%	56.7%	0.04 MB
A14	English, Neo-Catalan declined	175	40.6%	48.3%	0.04 MB
D22	QGA, Alekhine defence	37	40.5%	66.2%	0.01 MB
C41	Philidor, exchange variation	37	40.5%	50.0%	0.01 MB
D53	QGD, 4.Bg5 Be7	37	40.5%	63.5%	0.01 MB
E15	Queen's Indian, 4.g3 Bb7	52	40.4%	54.8%	0.01 MB
A34	English, symmetrical, Rubinstein system	52	40.4%	56.7%	0.01 MB
C08	French, Tarrasch, open, 4.ed ed	790	40.4%	53.6%	0.18 MB
D79	Neo-Gruenfeld, 6.O-O, main line	114	40.4%	53.5%	0.03 MB
D85	Gruenfeld, exchange variation	486	40.3%	57.0%	0.10 MB
D62	QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)	162	40.1%	53.4%	0.04 MB
B38	Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3	778	40.1%	57.2%	0.16 MB
D82	Gruenfeld, 4.Bf4	115	40.0%	57.4%	0.03 MB
C73	Ruy Lopez, modern Steinitz defence, Alapin variation	60	40.0%	55.0%	0.02 MB
C13	French, Albin-Alekhine-Chatard attack	30	40.0%	70.0%	0.01 MB
B09	Pirc, Austrian attack, 6.e5	30	40.0%	50.0%	0.01 MB
A86	Dutch, Leningrad variation	25	40.0%	60.0%	0.01 MB
C58	Two knights defence	20	40.0%	55.0%	0.01 MB
D16	QGD Slav, Smyslov variation	20	40.0%	65.0%	0.01 MB
D16	QGD Slav, Soultanbeieff variation	15	40.0%	60.0%	0.00 MB
C90	Ruy Lopez, closed, Suetin variation	15	40.0%	46.7%	0.00 MB
A00	Dunst (Sleipner, Heinrichsen) opening	10	40.0%	40.0%	0.00 MB
C80	Ruy Lopez, open, Tartakower variation	10	40.0%	70.0%	0.00 MB
C65	Ruy Lopez, Berlin defence, 4.O-O	5	40.0%	40.0%	0.00 MB
D65	QGD, Orthodox defence, Rubinstein attack, main line	5	40.0%	40.0%	0.00 MB
C00	French, Wing gambit	5	40.0%	80.0%	0.00 MB
D00	Queen's pawn, Mason variation, Steinitz counter-gambit	5	40.0%	40.0%	0.00 MB
C88	Ruy Lopez, closed, 8.c3	5	40.0%	40.0%	0.00 MB
E73	King's Indian, 5.Be2	5	40.0%	40.0%	0.00 MB
C39	KGA, Kieseritsky, Berlin defence	5	40.0%	20.0%	0.00 MB
A18	English, Mikenas-Carls variation	5	40.0%	80.0%	0.00 MB
C65	Ruy Lopez, Berlin defence, Duras variation	5	40.0%	60.0%	0.00 MB
C33	KGA, bishop's gambit, Jaenisch variation	5	40.0%	40.0%	0.00 MB
E21	Nimzo-Indian, three knights, Korchnoi variation	5	40.0%	80.0%	0.00 MB
D33	QGD, Tarrasch, Schlechter-Rubinstein system	5	40.0%	80.0%	0.00 MB
B58	Sicilian, Boleslavsky, Louma variation	5	40.0%	40.0%	0.00 MB
D19	QGD Slav, Dutch variation, main line	153	39.9%	55.2%	0.03 MB
E16	Queen's Indian, Capablanca variation	73	39.7%	50.0%	0.02 MB
D17	QGD Slav, Czech defence	96	39.6%	51.0%	0.02 MB
C69	Ruy Lopez, exchange, Gligoric variation	187	39.6%	57.2%	0.04 MB
C89	Ruy Lopez, Marshall, main line, 12.d2d4	86	39.5%	44.2%	0.02 MB
D55	QGD, Neo-orthodox variation, 7.Bxf6	86	39.5%	58.1%	0.02 MB
C67	Ruy Lopez, Berlin defence, open variation	853	39.5%	54.0%	0.17 MB
D47	QGD semi-Slav, Meran variation	646	39.5%	52.6%	0.14 MB
C15	French, Winawer, Alekhine gambit, Kan variation	38	39.5%	43.4%	0.01 MB
A34	English, symmetrical, three knights system	264	39.4%	49.2%	0.06 MB
C68	Ruy Lopez, exchange, Keres variation	66	39.4%	42.4%	0.02 MB
C81	Ruy Lopez, open, Howell attack	33	39.4%	68.2%	0.01 MB
A05	Reti, King's Indian attack	310	39.4%	57.4%	0.07 MB
E62	King's Indian, fianchetto, Larsen system	117	39.3%	56.4%	0.03 MB
D39	QGD, Ragozin, Vienna variation	313	39.3%	56.4%	0.06 MB
A41	Robatsch defence, Rossolimo variation	28	39.3%	58.9%	0.01 MB
C82	Ruy Lopez, open, St. Petersburg variation	51	39.2%	64.7%	0.01 MB
E54	Nimzo-Indian, 4.e3, Gligoric system with 7...dc	230	39.1%	53.9%	0.05 MB
E46	Nimzo-Indian, Simagin variation	23	39.1%	41.3%	0.01 MB
A01	Nimzovich-Larsen attack, classical variation	23	39.1%	50.0%	0.01 MB
E06	Catalan, closed, 5.Nf3	1293	39.1%	53.6%	0.28 MB
C71	Ruy Lopez, modern Steinitz defence	41	39.0%	58.5%	0.01 MB
D21	QGA, 3.Nf3	113	38.9%	47.8%	0.03 MB
B98	Sicilian, Najdorf, Browne variation	36	38.9%	58.3%	0.01 MB
A94	Dutch, stonewall with Ba3	18	38.9%	47.2%	0.01 MB
D05	Colle system	18	38.9%	58.3%	0.01 MB
D49	QGD semi-Slav, Meran, Rabinovich variation	103	38.8%	59.2%	0.02 MB
C60	Ruy Lopez, fianchetto (Smyslov/Barnes) defence	62	38.7%	58.1%	0.01 MB
D59	QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd5	109	38.5%	52.3%	0.03 MB
C46	Three knights game	26	38.5%	57.7%	0.01 MB
C34	KGA, Bonsch-Osmolovsky variation	13	38.5%	42.3%	0.00 MB
C46	Four knights, Gunsberg variation	13	38.5%	34.6%	0.00 MB
C00	French, Pelikan variation	13	38.5%	50.0%	0.00 MB
A98	Dutch, Ilyin-Genevsky variation with Qc2	13	38.5%	57.7%	0.00 MB
B74	Sicilian, dragon, classical, 9.Nb3	86	38.4%	62.2%	0.02 MB
B22	Sicilian, Alapin's variation (2.c3)	2098	38.3%	54.1%	0.43 MB
D77	Neo-Gruenfeld, 6.O-O	196	38.3%	52.8%	0.05 MB
E55	Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation	1487	38.3%	54.9%	0.31 MB
D36	QGD, exchange, positional line, 6.Qc2	34	38.2%	63.2%	0.01 MB
B29	Sicilian, Nimzovich-Rubinstein variation	34	38.2%	63.2%	0.01 MB
D63	QGD, Orthodox defence, Swiss, Karlsbad variation	199	38.2%	52.8%	0.05 MB
B36	Sicilian, accelerated fianchetto, Gurgenidze variation	76	38.2%	57.2%	0.02 MB
D27	QGA, classical, 6...a6	857	38.2%	54.1%	0.19 MB
D31	QGD, semi-Slav	249	38.2%	57.2%	0.06 MB
C10	French, Fort Knox variation	92	38.0%	62.5%	0.02 MB
A14	English, Symmetrical, Keres defence	255	38.0%	59.0%	0.06 MB
A05	Reti, King's Indian attack, Spassky's variation	158	38.0%	57.6%	0.04 MB
D78	Neo-Gruenfeld, 6.O-O c6	187	38.0%	55.9%	0.04 MB
C80	Ruy Lopez, open, 8...Be6	303	38.0%	49.0%	0.06 MB
E45	Nimzo-Indian, 4.e3, Bronstein (Byrne) variation	248	37.9%	52.4%	0.05 MB
D27	QGA, classical, Rubinstein variation	1170	37.9%	55.8%	0.25 MB
D17	QGD Slav, Carlsbad variation	325	37.8%	55.8%	0.07 MB
C42	Petrov, Paulsen attack	37	37.8%	48.6%	0.01 MB
E32	Nimzo-Indian, classical variation	4773	37.8%	52.0%	0.91 MB
D34	QGD, Tarrasch, Prague variation, 9.Bg5	320	37.8%	60.5%	0.07 MB
C42	Petrov, Cozio (Lasker) attack	82	37.8%	55.5%	0.02 MB
C07	French, Tarrasch, open variation	1477	37.8%	52.1%	0.32 MB
C43	Petrov, modern attack, main line	53	37.7%	56.6%	0.01 MB
D24	QGA, 4.Nc3	53	37.7%	60.4%	0.01 MB
C11	French defence	61	37.7%	48.4%	0.02 MB
A32	English, symmetrical variation	69	37.7%	49.3%	0.02 MB
B80	Sicilian, Scheveningen, fianchetto variation	215	37.7%	53.3%	0.05 MB
E35	Nimzo-Indian, classical, Noa variation, 5.cd ed	160	37.5%	55.6%	0.04 MB
C88	Ruy Lopez, Trajkovic counter-attack	32	37.5%	50.0%	0.01 MB
D89	Gruenfeld, exchange, Sokolsky variation	24	37.5%	35.4%	0.01 MB
B71	Sicilian, dragon, Levenfish variation	16	37.5%	50.0%	0.00 MB
A17	English, Queens Indian, Romanishin variation	8	37.5%	56.3%	0.00 MB
B07	Pirc, Holmov system	8	37.5%	43.8%	0.00 MB
C81	Ruy Lopez, open, Howell attack, Ekstroem variation	8	37.5%	81.3%	0.00 MB
B03	Alekhine's defence, four pawns attack, fianchetto variation	8	37.5%	68.8%	0.00 MB
B14	Caro-Kann, Panov-Botvinnik attack, 5...e6	866	37.4%	54.0%	0.19 MB
A38	English, symmetrical variation	188	37.2%	52.1%	0.04 MB
B12	Caro-Kann, Tartakower (fantasy) variation	188	37.2%	51.1%	0.04 MB
D41	QGD, Semi-Tarrasch, 5.cd	180	37.2%	58.6%	0.05 MB
A28	English, four knights, Capablanca variation	121	37.2%	52.5%	0.03 MB
B85	Sicilian, Scheveningen, classical main line	433	37.2%	52.1%	0.09 MB
E62	King's Indian, fianchetto with ...Nc6	54	37.0%	61.1%	0.01 MB
C77	Ruy Lopez, Wormald (Alapin) attack	146	37.0%	45.9%	0.04 MB
D01	Richter-Veresov attack	76	36.8%	40.8%	0.02 MB
D63	QGD, Orthodox defence	19	36.8%	60.5%	0.01 MB
D10	QGD Slav defence, Alekhine variation	19	36.8%	55.3%	0.01 MB
C77	Ruy Lopez, Morphy defence, Duras variation	19	36.8%	34.2%	0.01 MB
E08	Catalan, closed, Qc2 & b3	106	36.8%	60.8%	0.03 MB
C85	Ruy Lopez, Exchange variation doubly deferred (DERLD)	378	36.8%	52.5%	0.08 MB
C84	Ruy Lopez, closed defence	351	36.8%	50.0%	0.08 MB
A28	English, four knights, 4.e3	196	36.7%	55.1%	0.05 MB
A85	Dutch with c4 & Nc3	49	36.7%	63.3%	0.01 MB
D56	QGD, Lasker defence	139	36.7%	52.2%	0.03 MB
B15	Caro-Kann, Gurgenidze system	120	36.7%	56.7%	0.03 MB
B02	Alekhine's defence, Scandinavian variation	30	36.7%	45.0%	0.01 MB
C42	Petrov, classical attack, close variation	30	36.7%	61.7%	0.01 MB
B32	Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation	491	36.7%	56.0%	0.10 MB
B58	Sicilian, classical	131	36.6%	45.8%	0.03 MB
D87	Gruenfeld, exchange, Seville variation	101	36.6%	60.9%	0.02 MB
C86	Ruy Lopez, Worrall attack, sharp line	93	36.6%	50.5%	0.02 MB
E39	Nimzo-Indian, classical, Pirc variation	695	36.5%	57.8%	0.14 MB
B35	Sicilian, accelerated fianchetto, modern variation with Bc4	914	36.5%	51.4%	0.19 MB
E04	Catalan, open, 5.Nf3	2318	36.5%	52.8%	0.44 MB
C45	Scotch, Mieses variation	167	36.5%	50.6%	0.03 MB
B34	Sicilian, accelerated fianchetto, modern variation	137	36.5%	55.5%	0.04 MB
A28	English, four knights, Romanishin variation	332	36.4%	53.5%	0.07 MB
C42	Petrov, classical attack, Jaenisch variation	906	36.4%	57.3%	0.19 MB
E48	Nimzo-Indian, 4.e3 O-O, 5.Bd3 d5	206	36.4%	50.2%	0.05 MB
C41	Philidor, Improved Hanham variation	239	36.4%	53.8%	0.06 MB
C71	Ruy Lopez, modern Steinitz defence, Three knights variation	22	36.4%	54.5%	0.01 MB
D99	Gruenfeld defence, Smyslov, Yugoslav variation	22	36.4%	68.2%	0.01 MB
E93	King's Indian, Petrosian system, Keres variation	11	36.4%	27.3%	0.00 MB
E85	King's Indian, Saemisch, orthodox variation	11	36.4%	54.5%	0.00 MB
C67	Ruy Lopez, open Berlin defence, 5...Be7	11	36.4%	45.5%	0.00 MB
C41	Philidor, Larsen variation	11	36.4%	72.7%	0.00 MB
D90	Gruenfeld, Flohr variation	11	36.4%	72.7%	0.00 MB
E51	Nimzo-Indian, 4.e3, Ragozin variation	11	36.4%	54.5%	0.00 MB
A83	Dutch, Staunton gambit, Staunton's line	11	36.4%	72.7%	0.00 MB
C47	Four knights, Belgrade gambit	11	36.4%	63.6%	0.00 MB
C10	French, Frere (Becker) variation	11	36.4%	54.5%	0.00 MB
B97	Sicilian, Najdorf, Poisoned pawn variation	1771	36.3%	47.1%	0.30 MB
A07	Reti, King's Indian attack, Keres variation	146	36.3%	53.1%	0.03 MB
C80	Ruy Lopez, open, Bernstein variation	306	36.3%	60.0%	0.06 MB
B23	Sicilian, chameleon variation	80	36.3%	61.9%	0.02 MB
A60	Benoni defence	58	36.2%	45.7%	0.01 MB
D15	QGD Slav, 4.Nc3	724	36.2%	53.2%	0.16 MB
B08	Pirc, classical system, 5.Be2	619	36.2%	57.2%	0.14 MB
D40	QGD, Semi-Tarrasch defence	238	36.1%	48.3%	0.06 MB
E47	Nimzo-Indian, 4.e3 O-O, 5.Bd3	288	36.1%	58.7%	0.06 MB
E09	Catalan, closed, main line	97	36.1%	54.1%	0.03 MB
D38	QGD, Ragozin variation	1131	36.1%	53.8%	0.24 MB
B76	Sicilian, dragon, Yugoslav attack, 7...O-O	122	36.1%	41.8%	0.03 MB
C99	Ruy Lopez, closed, Chigorin, 12...c5d4	2474	36.1%	59.0%	0.46 MB
C96	Ruy Lopez, closed, Keres (...Nd7) defence	161	36.0%	67.7%	0.04 MB
A46