CCRL 40/40

Opening statistics

This page shows how many games in our database were played from various openings classified by the Encyclopedia of Chess Openings. The table also shows average draw percentage and white score we observed in our games.

ECO		Number of games	Draws	White score	Commented PGN
A94	Dutch, Stonewall with Ba3	3	100.0%	50.0%	0.00 MB
C31	KGD, Falkbeer counter-gambit	2	100.0%	50.0%	0.00 MB
A83	Dutch, Staunton gambit, Staunton's line	1	100.0%	50.0%	0.00 MB
A98	Dutch, Ilyin-Genevsky variation with Qc2	1	100.0%	50.0%	0.00 MB
A44	Old Benoni defence	6	83.3%	58.3%	0.00 MB
E51	Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d5	14	71.4%	50.0%	0.01 MB
D69	QGD; Orthodox defense, Classical, 13.dxe5	15	66.7%	40.0%	0.01 MB
D81	Gruenfeld; Russian variation	6	66.7%	66.7%	0.01 MB
A87	Dutch, Leningrad, Main variation	16	62.5%	62.5%	0.02 MB
C56	Two knights defense	8	62.5%	56.3%	0.01 MB
D89	Gruenfeld, Spassky variation, Main line, 13.Bd3	15	60.0%	43.3%	0.02 MB
B37	Sicilian, Accelerated Fianchetto, Maroczy bind, 5...Bg7	10	60.0%	50.0%	0.01 MB
E83	King's Indian, Saemisch, 6...Nc6	10	60.0%	60.0%	0.01 MB
A99	Dutch, Ilyin-Genevsky variation with b3	5	60.0%	70.0%	0.01 MB
B55	Sicilian, Prins variation, Venice attack	5	60.0%	70.0%	0.01 MB
E57	Nimzo-Indian, 4. e3, Main line with 8...dxc4 and 9...Bxc4 cxd4	5	60.0%	30.0%	0.00 MB
D22	QGA; Alekhine defense	17	58.8%	52.9%	0.01 MB
E25	Nimzo-Indian, Saemisch variation, Keres variation	47	57.4%	47.9%	0.03 MB
D73	Neo-Gruenfeld, 5.Nf3	70	57.1%	54.3%	0.06 MB
B72	Sicilian, Dragon, 6.Be3	21	57.1%	47.6%	0.02 MB
D71	Neo-Gruenfeld, 5.cd	14	57.1%	50.0%	0.01 MB
D88	Gruenfeld, Spassky variation, Main line, 10...cd, 11.cd	16	56.3%	59.4%	0.01 MB
A69	Benoni, Four pawns attack, Main line	9	55.6%	50.0%	0.01 MB
B28	Sicilian, O'Kelly variation	11	54.5%	63.6%	0.01 MB
E45	Nimzo-Indian, 4.e3, Bronstein (Byrne) variation	30	53.3%	60.0%	0.02 MB
A54	Old Indian, Ukrainian variation	21	52.4%	64.3%	0.02 MB
D62	QGD; Orthodox defense, 7.Qc2 c5, 8.cd (Rubinstein)	21	52.4%	69.0%	0.02 MB
C09	French, Tarrasch, Open variation, Main line	229	52.0%	57.9%	0.16 MB
A14	English, Neo-Catalan declined	136	51.5%	55.1%	0.10 MB
D92	Gruenfeld, 5.Bf4	84	51.2%	56.5%	0.05 MB
D26	QGA; classical variation	264	50.8%	52.7%	0.18 MB
D94	Gruenfeld, 5.e3	99	50.5%	56.6%	0.07 MB
C66	Ruy Lopez, Berlin defence, 4.O-O, d6	147	50.3%	57.8%	0.10 MB
C08	French, Tarrasch, Open, 4.exd5 exd5	207	50.2%	54.6%	0.14 MB
E47	Nimzo-Indian, 4.e3 O-O, 5.Bd3	44	50.0%	54.5%	0.03 MB
D99	Gruenfeld defense, Smyslov, Main line	36	50.0%	52.8%	0.02 MB
E49	Nimzo-Indian, 4.e3, Botvinnik system	28	50.0%	67.9%	0.02 MB
E56	Nimzo-Indian, 4.e3, Main line with 7...Nc6	16	50.0%	56.3%	0.01 MB
E65	King's Indian, Yugoslav, 7.O-O	12	50.0%	50.0%	0.01 MB
A86	Dutch with 2.c4 & 3.g3	10	50.0%	45.0%	0.01 MB
A24	English Opening, Bremen system with 3...g6	8	50.0%	62.5%	0.01 MB
A97	Dutch, Ilyin-Genevsky variation	8	50.0%	62.5%	0.01 MB
E72	King's Indian with e4 & g3	8	50.0%	62.5%	0.01 MB
C36	KGA, Abbazia defense (Classical defense, Modern defense)	6	50.0%	41.7%	0.01 MB
E27	Nimzo-Indian, Saemisch variation, 5...0-0	2	50.0%	25.0%	0.00 MB
C94	Ruy Lopez, Closed, Breyer defense	2	50.0%	25.0%	0.00 MB
A82	Dutch, Staunton gambit	2	50.0%	75.0%	0.00 MB
D84	Gruenfeld gambit accepted	2	50.0%	25.0%	0.00 MB
C37	KGA, Quaade gambit	2	50.0%	25.0%	0.00 MB
E34	Nimzo-Indian, Classical, Noa variation	117	49.6%	53.0%	0.08 MB
C86	Worrall attack	45	48.9%	51.1%	0.04 MB
D93	Gruenfeld with 5. Bf4 O-O 6. e3	43	48.8%	57.0%	0.03 MB
D42	QGD; Semi-Tarrasch, 7.Bd3	41	48.8%	58.5%	0.04 MB
D32	QGD; Tarrasch defense	41	48.8%	58.5%	0.03 MB
C83	Ruy Lopez, Open, Classical defence	33	48.5%	54.5%	0.02 MB
D61	QGD; Orthodox defense, Rubinstein variation	29	48.3%	51.7%	0.03 MB
C68	Ruy Lopez, Exchange variation	29	48.3%	48.3%	0.02 MB
D85	Gruenfeld, exchange variation	816	48.2%	54.1%	0.52 MB
D68	QGD; Orthodox defense, Classical variation	67	47.8%	56.7%	0.05 MB
D76	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6	44	47.7%	55.7%	0.04 MB
B52	Sicilian, Canal-Sokolsky attack, 3...Bd7	183	47.5%	56.6%	0.13 MB
D39	QGD; Ragozin, Vienna variation	535	47.3%	52.8%	0.30 MB
D52	QGD	140	47.1%	53.6%	0.10 MB
E24	Nimzo-Indian, Saemisch variation	17	47.1%	29.4%	0.01 MB
B58	Sicilian, Classical	100	47.0%	46.5%	0.07 MB
A55	Old Indian, Main line	64	46.9%	60.9%	0.05 MB
D82	Gruenfeld 4.Bf4	32	46.9%	51.6%	0.02 MB
C21	center game	47	46.8%	70.2%	0.04 MB
C07	French, Tarrasch, Open variation	473	46.7%	51.9%	0.32 MB
E06	Catalan, Closed, 5.Nf3	377	46.7%	52.0%	0.26 MB
C47	Four knights, Scotch variation	60	46.7%	51.7%	0.05 MB
D96	Gruenfeld, Russian variation	15	46.7%	70.0%	0.01 MB
D55	QGD; 6.Nf3	146	46.6%	56.8%	0.10 MB
B39	Sicilian, Accelerated Fianchetto, Breyer variation	26	46.2%	50.0%	0.02 MB
D74	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O	13	46.2%	61.5%	0.01 MB
E55	Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation	829	46.1%	53.7%	0.54 MB
D79	Neo-Gruenfeld, 6.O-O, Main line	37	45.9%	50.0%	0.03 MB
A12	English, Caro-Kann defensive system	57	45.6%	49.1%	0.05 MB
D27	QGA; classical variation	860	45.5%	56.3%	0.55 MB
A42	Modern defense, Averbakh system	33	45.5%	65.2%	0.03 MB
B86	Sicilian, Sozin attack	11	45.5%	40.9%	0.01 MB
D23	Queen's gambit accepted	11	45.5%	50.0%	0.01 MB
C27	Vienna game	11	45.5%	40.9%	0.01 MB
D24	QGA, 4.Nc3	20	45.0%	57.5%	0.02 MB
D58	QGD; Tartakower (Makagonov-Bondarevsky) system	2021	44.8%	52.8%	1.31 MB
B13	Caro-Kann, Exchange variation	190	44.7%	48.7%	0.13 MB
C54	Guioco piano	36	44.4%	44.4%	0.02 MB
A52	Budapest defense	18	44.4%	44.4%	0.01 MB
A78	Benoni, Classical with ...Re8 and ...Na6	9	44.4%	55.6%	0.01 MB
D51	QGD; 4.Bg5 Nbd7	9	44.4%	55.6%	0.01 MB
A31	English Opening, Symmetrical, Benoni formation	120	44.2%	58.8%	0.10 MB
A11	English, Caro-Kann defensive system	68	44.1%	54.4%	0.05 MB
B77	Sicilian, Dragon, Yugoslav attack, 9.Bc4	34	44.1%	48.5%	0.02 MB
A39	English Opening, Symmetrical, Main line with d4	84	44.0%	58.9%	0.06 MB
D06	Queen's Gambit	50	44.0%	60.0%	0.04 MB
A09	Reti Opening, 2..d5 3.c4	137	43.8%	51.1%	0.11 MB
D34	QGD; Tarrasch, 7...Be7	151	43.7%	55.6%	0.11 MB
E18	Queen's Indian, Old Main line, 7.Nc3	149	43.6%	59.4%	0.10 MB
C99	Ruy Lopez, Closed, Chigorin, 12...c5d4	484	43.4%	62.4%	0.31 MB
C15	French, Winawer (Nimzovich) variation	90	43.3%	53.9%	0.07 MB
D64	QGD; Orthodox defense, Rubinstein attack (with Rc1)	30	43.3%	51.7%	0.02 MB
B85	Sicilian, Scheveningen, Classical variation with ...Qc7 and ...Nc6	162	43.2%	55.6%	0.11 MB
D14	QGD; Slav defense, Exchange variation	51	43.1%	51.0%	0.03 MB
E54	Nimzo-Indian, 4.e3, Gligoric system with 7...dc	160	43.1%	55.3%	0.11 MB
A58	Benko gambit accepted	86	43.0%	52.9%	0.06 MB
D41	QGD; Semi-Tarrasch, 5.cd	100	43.0%	55.5%	0.07 MB
E59	Nimzo-Indian, 4.e3, Main line	428	43.0%	51.2%	0.27 MB
B14	Caro-Kann, Panov-Botvinnik attack, 5...e6	382	42.9%	55.5%	0.25 MB
E53	Nimzo-Indian, 4.e3, Main line with ...c5	70	42.9%	64.3%	0.05 MB
E42	Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)	164	42.7%	53.0%	0.11 MB
B93	Sicilian, Najdorf, 6.f4	237	42.6%	51.3%	0.16 MB
B51	Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack	153	42.5%	54.6%	0.11 MB
A10	English Opening	384	42.4%	54.0%	0.25 MB
C48	Four knights, Spanish variation	191	42.4%	55.8%	0.13 MB
B57	Sicilian, Sozin (not Scheveningen)	281	42.3%	51.1%	0.20 MB
D86	Gruenfeld, Exchange, Classical variation	83	42.2%	54.8%	0.06 MB
B35	Sicilian, Accelerated Fianchetto, Modern variation with Bc4	114	42.1%	50.9%	0.08 MB
D33	QGD; Tarrasch, Schlechter-Rubinstein system	19	42.1%	47.4%	0.02 MB
A38	English Opening, Symmetrical	81	42.0%	44.4%	0.06 MB
B64	Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defense, 9.f4	93	41.9%	48.9%	0.06 MB
E35	Nimzo-Indian, Classical, Noa variation, 5. cxd5 exd5	62	41.9%	59.7%	0.05 MB
D40	QGD; Semi-Tarrasch defense	110	41.8%	50.9%	0.08 MB
C23	Bishop's Opening	122	41.8%	57.8%	0.08 MB
D77	Neo-Gruenfeld, 6.O-O	79	41.8%	52.5%	0.06 MB
E22	Nimzo-Indian, Spielmann variation	12	41.7%	54.2%	0.01 MB
A79	Benoni, Classical, 11.f3	12	41.7%	54.2%	0.01 MB
C67	Ruy Lopez, Berlin defence, Open variation	471	41.6%	55.2%	0.30 MB
D25	QGA, 4.e3	65	41.5%	60.8%	0.05 MB
D67	QGD; Orthodox defense, Bd3 line, Capablanca freeing manoever	53	41.5%	58.5%	0.04 MB
B04	Alekhine's defense, Modern variation	82	41.5%	63.4%	0.06 MB
D66	QGD; Orthodox defense, Bd3 line	41	41.5%	62.2%	0.03 MB
E17	Queen's Indian, 5.Bg2 Be7	145	41.4%	55.9%	0.10 MB
E32	Nimzo-Indian, Classical variation	1214	41.2%	54.1%	0.74 MB
B09	Pirc, Austrian attack	102	41.2%	53.9%	0.07 MB
D28	QGA; Classical variation 7.Qe2	34	41.2%	61.8%	0.02 MB
E50	Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d5	17	41.2%	44.1%	0.02 MB
C46	Three knights game	137	40.9%	51.1%	0.10 MB
B01	Scandinavian (centercounter) center defense	270	40.7%	59.3%	0.18 MB
D37	QGD; 4.Nf3	1027	40.5%	55.7%	0.64 MB
C45	Scotch game	853	40.4%	53.0%	0.51 MB
A28	English Opening, Four knights system	527	40.4%	52.8%	0.36 MB
B36	Sicilian, Accelerated Fianchetto, Maroczy bind	109	40.4%	58.7%	0.07 MB
D97	Gruenfeld, Russian variation with 7. e4	477	40.3%	50.7%	0.30 MB
D30	QGD	1051	40.2%	54.9%	0.68 MB
E46	Nimzo-Indian, 4.e3 O-O	85	40.0%	49.4%	0.06 MB
C29	Vienna gambit, Kaufmann variation	20	40.0%	65.0%	0.01 MB
C30	King's gambit	20	40.0%	65.0%	0.02 MB
D36	QGD; Exchange, positional line, 6.Qc2	10	40.0%	40.0%	0.01 MB
E02	Catalan, open, 5.Qa4	10	40.0%	70.0%	0.01 MB
A92	Dutch defense	5	40.0%	60.0%	0.01 MB
A07	Reti Opening, King's Indian attack (Barcza system)	996	40.0%	51.9%	0.69 MB
B19	Caro-Kann, Classical, 7...Nd7	673	39.8%	53.3%	0.41 MB
B18	Caro-Kann, Classical variation	141	39.7%	52.5%	0.10 MB
E10	Queen's pawn game 3. Nf3	723	39.7%	58.0%	0.47 MB
A20	English Opening	903	39.6%	54.8%	0.58 MB
D05	Queen's pawn game, Zukertort variation	111	39.6%	54.1%	0.08 MB
C01	French, Exchange variation	238	39.5%	53.8%	0.18 MB
D00	Queen's pawn game	428	39.5%	50.4%	0.29 MB
C03	French, Tarrasch	218	39.4%	59.2%	0.16 MB
D38	QGD; Ragozin variation	322	39.4%	55.4%	0.22 MB
E04	Catalan, Open, 5.Nf3	567	39.3%	51.1%	0.35 MB
A84	Dutch defense	89	39.3%	53.4%	0.07 MB
D87	Gruenfeld, Exchange, Spassky variation	79	39.2%	62.7%	0.05 MB
C26	Vienna, Falkbeer variation	74	39.2%	52.0%	0.05 MB
A35	English Opening, Symmetrical	309	39.2%	52.3%	0.22 MB
C55	Two knights defense	133	39.1%	55.6%	0.10 MB
C44	King's pawn game	128	39.1%	53.1%	0.09 MB
D78	Neo-Gruenfeld, 6.O-O c6	77	39.0%	53.2%	0.05 MB
D60	QGD; Orthodox defense	18	38.9%	63.9%	0.02 MB
A05	Reti Opening, 2..Nf6	726	38.8%	55.0%	0.49 MB
D45	QGD; Semi-Slav 5.e3	3620	38.8%	51.9%	2.20 MB
A33	English Opening, Symmetrical	266	38.7%	55.8%	0.18 MB
B44	Sicilian defense	275	38.5%	52.0%	0.18 MB
B22	Sicilian, Alapin's variation (2.c3)	717	38.5%	53.7%	0.48 MB
D12	QGD; Slav defense, 4.e3 Bf5	351	38.5%	54.6%	0.23 MB
B34	Sicilian, Accelerated Fianchetto, Exchange variation	39	38.5%	50.0%	0.03 MB
D72	Neo-Gruenfeld, 5.cd, Main line	13	38.5%	34.6%	0.01 MB
A13	English Opening	563	38.4%	52.8%	0.41 MB
B65	Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defense, 9...Nxd4	159	38.4%	56.9%	0.10 MB
C50	King's pawn game	389	38.3%	51.3%	0.25 MB
C06	French, Tarrasch, Closed variation, Main line	314	38.2%	61.5%	0.20 MB
E00	Queen's pawn game	569	38.1%	53.9%	0.41 MB
A00	Irregular Openings	402	38.1%	49.6%	0.28 MB
C00	French defense	784	38.0%	50.3%	0.51 MB
D46	QGD; Semi-Slav 6.Bd3	232	37.9%	58.2%	0.15 MB
C92	Ruy Lopez, closed, 9.d4	963	37.9%	55.4%	0.61 MB
D49	QGD; Meran, 11. Nxb5	235	37.9%	47.0%	0.14 MB
E39	Nimzo-Indian, Classical, Pirc variation	111	37.8%	57.7%	0.08 MB
D63	QGD; Orthodox defense, 7.Rc1	74	37.8%	55.4%	0.05 MB
B43	Sicilian, Kan, 5.Nc3	294	37.8%	56.6%	0.20 MB
B21	Sicilian, Grand Prix attack	191	37.7%	52.4%	0.13 MB
B20	Sicilian defense	483	37.7%	49.5%	0.31 MB
C84	Ruy Lopez, Closed defense	396	37.6%	54.7%	0.25 MB
C43	Petrov, Modern (Steinitz) attack	258	37.6%	51.7%	0.16 MB
A29	English Opening, Four knights, kingside Fianchetto	1250	37.5%	51.8%	0.76 MB
B87	Sozin with ...a6 and ...b5	152	37.5%	54.3%	0.10 MB
E48	Nimzo-Indian, 4.e3 O-O, 5.Bd3 d5	56	37.5%	49.1%	0.04 MB
B24	Sicilian, Closed	40	37.5%	48.8%	0.03 MB
E76	King's Indian, Four pawns attack	32	37.5%	59.4%	0.02 MB
E13	Queen's Indian, 4.Nc3, Main line	16	37.5%	62.5%	0.01 MB
D53	QGD; 4.Bg5 Be7	8	37.5%	43.8%	0.01 MB
C57	Two knights defense	8	37.5%	68.8%	0.01 MB
D29	QGA; Classical variation 8...Bb7	75	37.3%	42.7%	0.05 MB
D03	Torre attack, Tartakower variation	67	37.3%	47.0%	0.05 MB
A30	English Opening, Symmetrical variation	1242	37.3%	56.0%	0.79 MB
D35	QGD; 3...Nf6	169	37.3%	57.1%	0.12 MB
C49	Four knights, double Ruy Lopez	145	37.2%	55.2%	0.10 MB
A40	Queen's pawn	944	37.2%	57.4%	0.63 MB
B92	Sicilian, Najdorf, Zagreb (Fianchetto) variation	740	37.2%	49.3%	0.48 MB
E43	Nimzo-Indian, Fischer variation	70	37.1%	58.6%	0.05 MB
D43	QGD; Semi-Slav	986	37.1%	52.8%	0.61 MB
B46	Sicilian, Taimanov variation	768	37.1%	55.3%	0.47 MB
B49	Sicilian, Taimanov variation	159	37.1%	56.9%	0.11 MB
A15	English, 1...Nf6 (Anglo-Indian defense)	884	37.1%	53.7%	0.59 MB
C24	Bishop's Opening, Berlin defense	89	37.1%	54.5%	0.07 MB
B83	Sicilian, Scheveningen, 6.Be2	367	37.1%	51.0%	0.25 MB
C70	Ruy Lopez,	162	37.0%	62.3%	0.12 MB
C10	French, Paulsen variation	393	36.9%	56.1%	0.26 MB
C87	Ruy Lopez, Closed, Averbach variation	57	36.8%	58.8%	0.04 MB
A19	English, Mikenas-Carls, Sicilian variation	19	36.8%	44.7%	0.02 MB
B47	Sicilian, Taimanov (Bastrikov) variation	1113	36.8%	54.8%	0.70 MB
C80	Ruy Lopez, Open (Tarrasch) defence	185	36.8%	56.2%	0.12 MB
C25	Vienna game	79	36.7%	53.8%	0.06 MB
C78	Ruy Lopez, 5.O-O	346	36.7%	55.6%	0.23 MB
A34	English Opening, Symmetrical	319	36.7%	56.9%	0.23 MB
E91	King's Indian, 6.Be2	120	36.7%	59.2%	0.08 MB
B30	Sicilian defense	682	36.7%	52.1%	0.48 MB
C85	Ruy Lopez, Exchange variation doubly deferred (DERLD)	325	36.6%	49.4%	0.22 MB
D31	QGD, 3.Nc3	222	36.5%	54.7%	0.16 MB
B31	Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)	316	36.4%	55.9%	0.22 MB
C58	Two knights defense	11	36.4%	63.6%	0.01 MB
A04	Reti Opening	1147	36.4%	54.2%	0.77 MB
B07	Pirc defense	267	36.3%	55.6%	0.19 MB
A25	English Opening, Sicilian Reversed	303	36.3%	53.8%	0.21 MB
C42	Petrov's defense	1075	36.3%	57.2%	0.67 MB
B48	Sicilian, Taimanov variation	637	36.3%	52.0%	0.40 MB
D48	QGD; Meran, 8...a6	563	36.2%	52.4%	0.35 MB
E19	Queen's Indian, Old Main line, 9.Qxc3	163	36.2%	59.2%	0.12 MB
A45	Queen's pawn game	644	36.2%	52.4%	0.43 MB
E52	Nimzo-Indian, 4.e3, Main line with ...b6	47	36.2%	62.8%	0.04 MB
D20	Queen's Gambit accepted	360	36.1%	58.1%	0.23 MB
B84	Sicilian, Scheveningen (Paulsen), Classical variation	1203	36.1%	49.8%	0.74 MB
D11	QGD; Slav defense, 3.Nf3	333	36.0%	53.8%	0.24 MB
E12	Queen's Indian defense	1957	36.0%	52.2%	1.22 MB
A48	King's Indian, East Indian defense	361	36.0%	52.1%	0.25 MB
D10	QGD; Slav defense	586	36.0%	54.7%	0.40 MB
E84	King's Indian, Saemisch, Panno Main line	64	35.9%	52.3%	0.05 MB
B97	Sicilian, Najdorf, 7...Qb6	604	35.9%	47.6%	0.32 MB
D04	Queen's pawn game	106	35.8%	49.1%	0.08 MB
E21	Nimzo-Indian, Three knights variation	240	35.8%	50.4%	0.17 MB
A17	English Opening	120	35.8%	57.1%	0.08 MB
C91	Ruy Lopez, closed, 9.d4	1226	35.8%	54.3%	0.80 MB
E60	King's Indian defense	624	35.7%	57.0%	0.45 MB
B17	Caro-Kann, Steinitz variation	431	35.7%	54.3%	0.28 MB
C52	Evans gambit	28	35.7%	46.4%	0.02 MB
C73	Ruy Lopez, Modern Steinitz defense, Richter variation	28	35.7%	57.1%	0.02 MB
E62	King's Indian, Fianchetto variation	241	35.7%	58.9%	0.16 MB
B08	Pirc, Classical (Two knights) system	219	35.6%	55.3%	0.16 MB
A49	King's Indian, Fianchetto without c4	146	35.6%	58.9%	0.10 MB
C53	Giuoco piano	422	35.5%	54.7%	0.29 MB
E14	Queen's Indian, 4.e3	318	35.5%	55.2%	0.20 MB
E81	King's Indian, Saemisch, 5...O-O	186	35.5%	55.9%	0.12 MB
C40	King's knight Opening	31	35.5%	69.4%	0.02 MB
B10	Caro-Kann defense	666	35.4%	55.9%	0.43 MB
C88	Ruy Lopez, Closed	780	35.4%	54.1%	0.48 MB
C11	French defense	1269	35.4%	55.8%	0.76 MB
E15	Queen's Indian, 4.g3	4726	35.4%	55.9%	2.89 MB
B42	Sicilian, Kan, 5.Bd3	521	35.3%	57.6%	0.35 MB
B45	Sicilian, Taimanov variation	507	35.3%	57.1%	0.31 MB
D59	QGD; Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd5	51	35.3%	47.1%	0.03 MB
D50	QGD; 4.Bg5	17	35.3%	52.9%	0.01 MB
C95	Ruy Lopez, closed, Breyer, 10.d4	326	35.3%	56.3%	0.23 MB
C96	Ruy Lopez, closed, 8...Na5	227	35.2%	57.7%	0.16 MB
B38	Sicilian, Accelerated Fianchetto, Maroczy bind, 6.Be3	88	35.2%	59.7%	0.06 MB
E63	King's Indian, Fianchetto, Panno variation	480	35.2%	55.9%	0.32 MB
D07	QGD; Chigorin defense	307	35.2%	59.9%	0.19 MB
A06	Reti Opening, 2..d5	435	35.2%	49.1%	0.30 MB
A47	Queen's Indian defense	111	35.1%	59.0%	0.08 MB
D13	QGD; Slav defense, Exchange variation	74	35.1%	59.5%	0.05 MB
B27	Sicilian defense	168	35.1%	57.4%	0.12 MB
D02	Queen's pawn game, 2. Nf3	1447	35.1%	52.2%	0.94 MB
E33	Nimzo-Indian, Classical variation, 4...Nc6	57	35.1%	54.4%	0.04 MB
E44	Nimzo-Indian, Fischer variation, 5.Ne2	57	35.1%	57.9%	0.04 MB
B54	Sicilian	260	35.0%	55.6%	0.19 MB
E66	King's Indian, Fianchetto, Yugoslav Panno	40	35.0%	55.0%	0.03 MB
D98	Gruenfeld, Russian, Smyslov variation	40	35.0%	70.0%	0.03 MB
A32	English Opening, Symmetrical	20	35.0%	62.5%	0.02 MB
B03	Alekhine's defense	83	34.9%	60.8%	0.06 MB
D47	QGD; Semi-Slav 7.Bc4	3104	34.9%	55.0%	1.82 MB
E69	King's Indian, Fianchetto, Classical Main line	169	34.9%	60.1%	0.11 MB
B61	Sicilian, Richter-Rauzer, Larsen variation, 7.Qd2	43	34.9%	54.7%	0.03 MB
C72	Ruy Lopez, Modern Steinitz defense 5.0-0	43	34.9%	59.3%	0.03 MB
C41	Philidor's defense	158	34.8%	56.0%	0.11 MB
E95	King's Indian, Orthodox, 7...Nbd7, 8.Re1	46	34.8%	63.0%	0.03 MB
E08	Catalan, Closed, 7.Qc2	23	34.8%	47.8%	0.02 MB
A22	English Opening	467	34.7%	51.2%	0.30 MB
C76	Ruy Lopez, Modern Steinitz defense, Fianchetto (Bronstein) variation	52	34.6%	51.9%	0.04 MB
D70	Neo-Gruenfeld defense	26	34.6%	48.1%	0.02 MB
D15	QGD; Slav accepted, Exchange variation, 6.Bf4 Bf5	272	34.6%	52.9%	0.19 MB
B15	Caro-Kann defense	171	34.5%	52.9%	0.12 MB
E16	Queen's Indian, Capablanca variation	61	34.4%	53.3%	0.04 MB
D80	Gruenfeld defense	61	34.4%	59.8%	0.05 MB
B12	Caro-Kann defense	956	34.4%	56.1%	0.59 MB
C05	French, Tarrasch, Closed variation	125	34.4%	57.2%	0.08 MB
B25	Sicilian, Closed	67	34.3%	56.0%	0.05 MB
C64	Ruy Lopez, Classical (Cordel) defence	178	34.3%	57.0%	0.13 MB
E20	Nimzo-Indian defense	146	34.2%	54.8%	0.10 MB
B56	Sicilian	310	34.2%	53.5%	0.20 MB
E41	Nimzo-Indian, 4.e3 c5	155	34.2%	48.7%	0.11 MB
B96	Sicilian, Najdorf, 7.f4	82	34.1%	47.6%	0.06 MB
A81	Dutch defense	129	34.1%	55.8%	0.10 MB
E11	Bogo-Indian defense	478	34.1%	54.9%	0.33 MB
B73	Sicilian, Dragon, Classical, 8.O-O	44	34.1%	55.7%	0.04 MB
E68	King's Indian, Fianchetto, Classical variation, 8.e4	223	34.1%	60.1%	0.15 MB
E67	King's Indian, Fianchetto with ...Nd7	94	34.0%	57.4%	0.07 MB
C62	Ruy Lopez, Old Steinitz defence	97	34.0%	57.2%	0.08 MB
E94	King's Indian, Orthodox variation	341	34.0%	60.1%	0.23 MB
B23	Sicilian, Closed	635	34.0%	53.2%	0.41 MB
A46	Queen's pawn game	462	34.0%	56.2%	0.31 MB
C77	Ruy Lopez, Morphy defence	195	33.8%	57.9%	0.15 MB
B70	Sicilian, Dragon variation	74	33.8%	52.0%	0.06 MB
D19	QGD; Dutch variation	309	33.7%	58.9%	0.20 MB
B40	Sicilian defense	839	33.6%	55.2%	0.56 MB
A41	Queen's pawn	155	33.5%	56.8%	0.11 MB
B53	Sicilian, Chekhover variation	81	33.3%	52.5%	0.06 MB
C28	Vienna game	30	33.3%	50.0%	0.02 MB
E01	Catalan, closed	30	33.3%	56.7%	0.02 MB
B75	Sicilian, Dragon, Yugoslav attack	27	33.3%	61.1%	0.02 MB
A89	Dutch, Leningrad, Main variation with Nc6	24	33.3%	66.7%	0.02 MB
E37	Nimzo-Indian, Classical, Noa variation, Main line, 7.Qc2	15	33.3%	76.7%	0.01 MB
A02	Bird's Opening	6	33.3%	66.7%	0.01 MB
E75	King's Indian, Averbakh, Main line	3	33.3%	83.3%	0.00 MB
E23	Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc6	3	33.3%	50.0%	0.00 MB
E79	King's Indian, Four pawns attack, Main line	3	33.3%	50.0%	0.00 MB
C81	Ruy Lopez, Open, Howell attack	3	33.3%	83.3%	0.00 MB
D08	QGD; Albin counter-gambit	3	33.3%	50.0%	0.00 MB
A91	Dutch defense	3	33.3%	83.3%	0.00 MB
C90	Ruy Lopez, closed (with ...d6)	526	33.3%	47.1%	0.35 MB
D44	QGD; Semi-Slav 5.Bg5 dc	295	33.2%	53.9%	0.16 MB
B50	Sicilian	350	33.1%	54.6%	0.25 MB
A50	Queen's pawn game	166	33.1%	56.3%	0.11 MB
B82	Sicilian, Scheveningen, 6.f4	82	32.9%	57.9%	0.06 MB
E88	King's Indian, Saemisch, Orthodox, 7.d5 c6	61	32.8%	59.0%	0.04 MB
D21	QGA, 3.Nf3	49	32.7%	55.1%	0.04 MB
B26	Sicilian, Closed, 6.Be3	49	32.7%	42.9%	0.03 MB
B91	Sicilian, Najdorf, Zagreb (Fianchetto) variation	49	32.7%	53.1%	0.04 MB
C79	Ruy Lopez, Steinitz defense deferred (Russian defence)	80	32.5%	56.3%	0.06 MB
E87	King's Indian, Saemisch, Orthodox, 7.d5	40	32.5%	61.3%	0.03 MB
A08	Reti Opening, King's Indian attack	74	32.4%	52.7%	0.06 MB
C98	Ruy Lopez, Closed, Chigorin, 12...Nc6	71	32.4%	58.5%	0.06 MB
E58	Nimzo-Indian, 4.e3, Main line with 8...Bxc3	247	32.4%	53.4%	0.16 MB
B63	Sicilian, Richter-Rauzer, Rauzer attack	244	32.4%	55.9%	0.15 MB
E97	King's Indian, Orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)	1192	32.3%	56.1%	0.75 MB
D91	Gruenfeld, Three knights variation	192	32.3%	47.9%	0.14 MB
E30	Nimzo-Indian, Leningrad variation,	56	32.1%	53.6%	0.04 MB
C59	Two knights defense	306	32.0%	52.3%	0.18 MB
B81	Sicilian, Scheveningen, Keres attack	444	32.0%	61.5%	0.26 MB
B32	Sicilian defense	207	31.9%	59.4%	0.16 MB
A80	Dutch	69	31.9%	62.3%	0.05 MB
D17	QGD; Slav defense, Czech defence	201	31.8%	56.7%	0.12 MB
B33	Sicilian defense	1096	31.8%	56.9%	0.64 MB
B66	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6	2735	31.6%	51.1%	1.52 MB
C65	Ruy Lopez, Berlin defense	149	31.5%	55.4%	0.12 MB
A53	Old Indian defense	149	31.5%	60.1%	0.11 MB
E73	King's Indian, 5.Be2	54	31.5%	56.5%	0.04 MB
E96	King's Indian, Orthodox, 7...Nbd7, Main line	16	31.3%	40.6%	0.01 MB
A59	Benko gambit, 7.e4	16	31.3%	59.4%	0.01 MB
E29	Nimzo-Indian, Saemisch variation, Main line	16	31.3%	40.6%	0.01 MB
E86	King's Indian, Saemisch, Orthodox, 7.Nge2 c6	45	31.1%	40.0%	0.03 MB
A16	English Opening	148	31.1%	52.7%	0.10 MB
B62	Sicilian, Richter-Rauzer, 6...e6	55	30.9%	48.2%	0.04 MB
E90	King's Indian, 5.Nf3	117	30.8%	61.5%	0.09 MB
E38	Nimzo-Indian, Classical, 4...c5	52	30.8%	69.2%	0.04 MB
A60	Benoni defense	13	30.8%	69.2%	0.01 MB
C39	King's knight's gambit	13	30.8%	46.2%	0.01 MB
B05	Alekhine's defense, Modern variation, 4...Bg4	62	30.6%	68.5%	0.05 MB
B60	Sicilian, Richter-Rauzer	69	30.4%	64.5%	0.04 MB
C71	Ruy Lopez, Modern Steinitz defense	46	30.4%	56.5%	0.04 MB
E80	King's Indian, Saemisch variation	23	30.4%	58.7%	0.02 MB
E92	King's Indian, Classical variation	306	30.4%	56.4%	0.21 MB
C12	French, MacCutcheon variation	204	30.4%	51.5%	0.13 MB
C02	French, Advance variation	551	30.3%	53.8%	0.36 MB
C14	French, Classical variation	76	30.3%	57.2%	0.05 MB
A62	Benoni, Fianchetto variation	53	30.2%	62.3%	0.04 MB
B90	Sicilian, Najdorf	4712	30.1%	53.0%	2.57 MB
C89	Ruy Lopez, Marshall counter-attack	113	30.1%	54.0%	0.08 MB
A21	English Opening	316	30.1%	56.8%	0.21 MB
B11	Caro-Kann, Two knights, 3...Bg4	40	30.0%	57.5%	0.03 MB
E64	King's Indian, Fianchetto, Yugoslav system	10	30.0%	75.0%	0.01 MB
D83	Gruenfeld gambit	10	30.0%	65.0%	0.01 MB
A96	Dutch, Classical variation	10	30.0%	65.0%	0.01 MB
E82	King's Indian, Saemisch, double Fianchetto variation	10	30.0%	55.0%	0.01 MB
C16	French, Winawer, Advance variation	127	29.9%	65.4%	0.08 MB
B89	Sicilian, Sozin, 7.Be3	396	29.8%	49.5%	0.24 MB
B98	Sicilian, Najdorf, 7...Be7	74	29.7%	62.2%	0.05 MB
B67	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defense, 8...Bd7	778	29.7%	54.0%	0.46 MB
B68	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defense, 9...Be7	27	29.6%	66.7%	0.02 MB
B74	Sicilian, Dragon, Classical, 9.Nb3	27	29.6%	51.9%	0.02 MB
B00	King's pawn Opening	179	29.6%	60.6%	0.13 MB
B06	Robatsch (Modern) defense	298	29.5%	58.4%	0.21 MB
B41	Sicilian, Kan variation	61	29.5%	52.5%	0.05 MB
C19	French, Winawer, Advance, 6...Ne7	1112	29.5%	58.6%	0.69 MB
C93	Ruy Lopez, closed, Smyslov defense	17	29.4%	50.0%	0.02 MB
B80	Sicilian, Scheveningen variation	400	29.3%	53.4%	0.24 MB
B69	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defense, 11.Bxf6	48	29.2%	64.6%	0.03 MB
C97	Ruy Lopez, Closed, Chigorin defense	276	29.0%	63.8%	0.18 MB
C69	Ruy Lopez, Exchange variation, 5.O-O	145	29.0%	55.2%	0.10 MB
C17	French, Winawer, Advance variation	196	28.6%	57.7%	0.12 MB
E61	King's Indian defense, 3.Nc3	133	28.6%	57.9%	0.10 MB
C60	Ruy Lopez	28	28.6%	67.9%	0.02 MB
C74	Ruy Lopez, Modern Steinitz defense	21	28.6%	66.7%	0.02 MB
D95	Gruenfeld with 5. e3 O-O 6. Qb3	7	28.6%	57.1%	0.01 MB
E93	King's Indian, Petrosian system, Main line	7	28.6%	71.4%	0.01 MB
A01	Nimzovich-Larsen attack	195	28.2%	52.1%	0.14 MB
A56	Benoni defense	110	28.2%	62.3%	0.08 MB
A43	Old Benoni defense	87	27.6%	57.5%	0.06 MB
B88	Sicilian, Sozin, Leonhardt variation	58	27.6%	56.9%	0.04 MB
B02	Alekhine's defense	51	27.5%	47.1%	0.04 MB
A90	Dutch defense	51	27.5%	56.9%	0.04 MB
D56	QGD; Lasker defense	44	27.3%	50.0%	0.03 MB
C75	Ruy Lopez, Modern Steinitz defense	22	27.3%	59.1%	0.02 MB
A70	Benoni, Classical with e4 and Nf3	85	27.1%	54.7%	0.06 MB
A27	English Opening, Three knights system	37	27.0%	51.4%	0.03 MB
C51	Evans gambit declined	30	26.7%	46.7%	0.02 MB
A57	Benko gambit	139	26.6%	50.0%	0.10 MB
A88	Dutch, Leningrad, Main variation with 7...c6	34	26.5%	72.1%	0.03 MB
B95	Sicilian, Najdorf, 6...e6	53	26.4%	32.1%	0.04 MB
C04	French, Tarrasch, Guimard Main line	23	26.1%	52.2%	0.02 MB
C63	Ruy Lopez, Schilemann defense	23	26.1%	60.9%	0.02 MB
A26	English Opening, Closed system	66	25.8%	46.2%	0.04 MB
A37	English Opening, Symmetrical	101	25.7%	54.5%	0.07 MB
E71	King's Indian, Makagonov system (5.h3)	47	25.5%	63.8%	0.04 MB
B76	Sicilian, Dragon, Yugoslav attack, 7...O-O	157	25.5%	62.4%	0.10 MB
C18	French, Winawer, Advance variation	68	25.0%	56.6%	0.05 MB
E40	Nimzo-Indian, 4.e3	44	25.0%	48.9%	0.03 MB
D90	Gruenfeld, Three knights variation	44	25.0%	51.1%	0.03 MB
B29	Sicilian, Nimzovich-Rubinstein variation	24	25.0%	54.2%	0.02 MB
C82	Ruy Lopez, Open, 9.c3	20	25.0%	52.5%	0.01 MB
E07	Catalan, Closed, 6...Nbd7	20	25.0%	37.5%	0.02 MB
D75	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc3	12	25.0%	62.5%	0.01 MB
E74	King's Indian, Averbakh, 6...c5	8	25.0%	62.5%	0.01 MB
A93	Dutch, Stonewall, Botwinnik variation	8	25.0%	50.0%	0.01 MB
D09	QGD; Albin counter-gambit, 5.g3	4	25.0%	37.5%	0.01 MB
A03	Bird's Opening	4	25.0%	37.5%	0.00 MB
D01	Richter-Veresov attack	53	24.5%	40.6%	0.04 MB
A36	English Opening, Symmetrical	113	23.9%	50.9%	0.08 MB
E05	Catalan, Open, Classical line	21	23.8%	50.0%	0.02 MB
E70	King's Indian, 4.e4	85	23.5%	74.1%	0.06 MB
D16	QGD; Slav accepted, Alapin variation	39	23.1%	73.1%	0.03 MB
C34	King's knight's gambit	13	23.1%	65.4%	0.01 MB
C33	King's gambit accepted	13	23.1%	34.6%	0.01 MB
B16	Caro-Kann, Bronstein-Larsen variation	22	22.7%	65.9%	0.02 MB
C22	center game	62	22.6%	67.7%	0.04 MB
E98	King's Indian, Orthodox, Aronin-Taimanov, 9.Ne1	380	22.4%	60.7%	0.24 MB
A61	Benoni defense	126	22.2%	66.7%	0.08 MB
C20	King's pawn game	9	22.2%	55.6%	0.01 MB
A75	Benoni, Classical with ...a6 and 10...Bg4	9	22.2%	55.6%	0.01 MB
B94	Sicilian, Najdorf, 6.Bg5	28	21.4%	57.1%	0.02 MB
A77	Benoni, Classical, 9...Re8, 10.Nd2	19	21.1%	68.4%	0.01 MB
B78	Sicilian, Dragon, Yugoslav attack, 10.O-O-O	48	20.8%	47.9%	0.03 MB
A23	English Opening, Bremen system, Keres variation	29	20.7%	62.1%	0.02 MB
C13	French, Classical	30	20.0%	60.0%	0.02 MB
E77	King's Indian, Four pawns attack, 6.Be2	30	20.0%	63.3%	0.02 MB
A76	Benoni, Classical, 9...Re8	10	20.0%	30.0%	0.01 MB
A85	Dutch with 2.c4 & 3.Nc3	10	20.0%	60.0%	0.01 MB
A63	Benoni, Fianchetto variation, 9...Nbd7	5	20.0%	70.0%	0.01 MB
A64	Benoni, Fianchetto variation, 11...Re8	16	18.8%	34.4%	0.01 MB
B99	Sicilian, Najdorf, 7...Be7 Main line	143	18.2%	52.4%	0.08 MB
B59	Sicilian, Boleslavsky variation, 7.Nb3	11	18.2%	54.5%	0.01 MB
E99	King's Indian, Orthodox, Aronin-Taimanov, Main line	6	16.7%	75.0%	0.00 MB
A18	English, Mikenas-Carls variation	6	16.7%	75.0%	0.01 MB
B71	Sicilian, Dragon, Levenfish variation	6	16.7%	58.3%	0.00 MB
B79	Sicilian, Dragon, Yugoslav attack, 12.h4	6	16.7%	58.3%	0.01 MB
E36	Nimzo-Indian, Classical, Noa variation, 5. a3	19	15.8%	44.7%	0.02 MB
A71	Benoni, Classical, 8.Bg5	15	13.3%	46.7%	0.01 MB
E09	Catalan, Closed, Main line	23	13.0%	71.7%	0.02 MB
D18	QGD; Dutch variation	16	12.5%	56.3%	0.01 MB
A95	Dutch, Stonewall with Nc3	8	12.5%	43.8%	0.01 MB
A72	Benoni, Classical without 9.O-O	8	12.5%	81.3%	0.01 MB
E31	Nimzo-Indian, Leningrad variation, main line	10	10.0%	45.0%	0.01 MB
A73	Benoni, Classical, 9.O-O	7	0.0%	71.4%	0.01 MB
A51	Budapest defense declined	7	0.0%	57.1%	0.01 MB
C61	Ruy Lopez, Bird's defense	6	0.0%	66.7%	0.00 MB
C35	KGA, Cunningham defense	5	0.0%	40.0%	0.00 MB
E26	Nimzo-Indian, Saemisch variation, 4. a3 Bxc3+ 5. bxc3 c5 6. e3	5	0.0%	20.0%	0.01 MB
A67	Benoni, Taimanov variation	4	0.0%	100.0%	0.00 MB
C38	King's knight's gambit	4	0.0%	0.0%	0.00 MB
E28	Nimzo-Indian, Saemisch variation, 6. e3	3	0.0%	100.0%	0.00 MB
A65	Benoni, 6.e4	2	0.0%	0.0%	0.00 MB
E89	King's Indian, Saemisch, Orthodox Main line	1	0.0%	0.0%	0.00 MB
A74	Benoni, Classical, 9...a6, 10.a4	1	0.0%	100.0%	0.00 MB