CCRL 40/40

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	Commented PGN
C20	Alapin's opening	7	14.3%	64.3%	0.01 MB
B02	Alekhine's defence	10	10.0%	35.0%	0.01 MB
B03	Alekhine's defence	4	50.0%	75.0%	0.00 MB
B03	Alekhine's defence, Balogh variation	1	0.0%	100.0%	0.00 MB
B02	Alekhine's defence, Brooklyn defence	5	20.0%	30.0%	0.01 MB
B02	Alekhine's defence, Maroczy variation	13	30.8%	53.8%	0.01 MB
B03	Alekhine's defence, O'Sullivan gambit	3	66.7%	66.7%	0.00 MB
B02	Alekhine's defence, Saemisch attack	5	60.0%	50.0%	0.00 MB
B02	Alekhine's defence, Scandinavian variation	7	0.0%	42.9%	0.01 MB
B02	Alekhine's defence, Two pawns' (Lasker's) attack	11	45.5%	59.1%	0.01 MB
B03	Alekhine's defence, exchange variation	51	31.4%	56.9%	0.04 MB
B03	Alekhine's defence, exchange, Karpov variation	1	100.0%	50.0%	0.00 MB
B03	Alekhine's defence, four pawns attack	7	28.6%	57.1%	0.01 MB
B03	Alekhine's defence, four pawns attack, 7.Be3	12	50.0%	75.0%	0.01 MB
B03	Alekhine's defence, four pawns attack, fianchetto variation	4	0.0%	50.0%	0.00 MB
B04	Alekhine's defence, modern variation	13	46.2%	69.2%	0.01 MB
B05	Alekhine's defence, modern variation, 4...Bg4	53	32.1%	68.9%	0.04 MB
B05	Alekhine's defence, modern, Alekhine variation	1	100.0%	50.0%	0.00 MB
B05	Alekhine's defence, modern, Flohr variation	8	12.5%	68.8%	0.01 MB
B04	Alekhine's defence, modern, Keres variation	10	60.0%	60.0%	0.01 MB
B04	Alekhine's defence, modern, Larsen variation	28	39.3%	62.5%	0.02 MB
B04	Alekhine's defence, modern, Schmid variation	11	36.4%	54.5%	0.01 MB
B04	Alekhine's defence, modern, fianchetto variation	20	35.0%	67.5%	0.02 MB
A00	Amar (Paris) opening	10	50.0%	35.0%	0.01 MB
A00	Amar gambit	1	0.0%	0.0%	0.00 MB
A00	Amsterdam attack	1	0.0%	100.0%	0.00 MB
A00	Anderssen's opening	5	40.0%	20.0%	0.01 MB
A00	Anti-Borg (Desprez) opening	1	0.0%	0.0%	0.00 MB
A40	Beefeater defence	3	33.3%	83.3%	0.00 MB
A57	Benko gambit	51	23.5%	62.7%	0.04 MB
A59	Benko gambit	1	0.0%	0.0%	0.00 MB
A58	Benko gambit accepted	67	41.8%	53.7%	0.04 MB
A57	Benko gambit half accepted	80	30.0%	46.3%	0.06 MB
A59	Benko gambit, 7.e4	1	100.0%	50.0%	0.00 MB
A57	Benko gambit, Zaitsev system	8	12.5%	6.3%	0.01 MB
A58	Benko gambit, fianchetto variation	19	47.4%	50.0%	0.02 MB
A59	Benko gambit, main line	14	28.6%	64.3%	0.01 MB
A00	Benko's opening	317	37.2%	51.4%	0.22 MB
A00	Benko's opening, reversed Alekhine	9	44.4%	44.4%	0.01 MB
A56	Benoni defence	67	29.9%	55.2%	0.05 MB
A60	Benoni defence	13	30.8%	69.2%	0.01 MB
A61	Benoni defence	69	18.8%	71.7%	0.05 MB
A56	Benoni defence, Hromodka system	19	15.8%	76.3%	0.02 MB
A65	Benoni, 6.e4	2	0.0%	0.0%	0.00 MB
A61	Benoni, Nimzovich (knight's tour) variation	47	23.4%	60.6%	0.03 MB
A67	Benoni, Taimanov variation	4	0.0%	100.0%	0.00 MB
A61	Benoni, Uhlmann variation	8	50.0%	50.0%	0.01 MB
A78	Benoni, classical with ...Re8 and ...Na6	9	44.4%	55.6%	0.01 MB
A75	Benoni, classical with ...a6 and 10...Bg4	9	22.2%	55.6%	0.01 MB
A70	Benoni, classical with e4 and Nf3	84	27.4%	55.4%	0.05 MB
A70	Benoni, classical without 9.O-O	1	0.0%	0.0%	0.00 MB
A72	Benoni, classical without 9.O-O	8	12.5%	81.3%	0.01 MB
A79	Benoni, classical, 11.f3	12	41.7%	54.2%	0.01 MB
A71	Benoni, classical, 8.Bg5	15	13.3%	46.7%	0.01 MB
A76	Benoni, classical, 9...Re8	10	20.0%	30.0%	0.01 MB
A77	Benoni, classical, 9...Re8, 10.Nd2	19	21.1%	68.4%	0.01 MB
A74	Benoni, classical, 9...a6, 10.a4	1	0.0%	100.0%	0.00 MB
A73	Benoni, classical, 9.O-O	7	0.0%	71.4%	0.01 MB
A61	Benoni, fianchetto variation	2	0.0%	100.0%	0.00 MB
A62	Benoni, fianchetto variation	53	30.2%	62.3%	0.04 MB
A64	Benoni, fianchetto, 11...Re8	16	18.8%	34.4%	0.01 MB
A63	Benoni, fianchetto, 9...Nbd7	5	20.0%	70.0%	0.01 MB
A69	Benoni, four pawns attack, main line	9	55.6%	50.0%	0.01 MB
A02	Bird's opening	5	40.0%	60.0%	0.00 MB
A03	Bird's opening	4	25.0%	37.5%	0.00 MB
A02	Bird, From gambit, Lasker variation	1	0.0%	100.0%	0.00 MB
C23	Bishop's opening	66	34.8%	56.8%	0.05 MB
C24	Bishop's opening, Berlin defence	80	38.8%	56.9%	0.06 MB
C23	Bishop's opening, Calabrese counter-gambit, Jaenisch variation	3	0.0%	100.0%	0.00 MB
C23	Bishop's opening, Classical variation	20	35.0%	52.5%	0.01 MB
C23	Bishop's opening, Lisitsyn variation	1	0.0%	0.0%	0.00 MB
C23	Bishop's opening, Philidor counter-attack	28	64.3%	64.3%	0.02 MB
C23	Bishop's opening, Philidor variation	4	75.0%	37.5%	0.00 MB
C24	Bishop's opening, Urusov gambit	9	22.2%	33.3%	0.01 MB
D00	Blackmar gambit	5	80.0%	40.0%	0.01 MB
A45	Blackmar-Diemer gambit	9	11.1%	50.0%	0.01 MB
E10	Blumenfeld counter-gambit	10	20.0%	60.0%	0.01 MB
E10	Blumenfeld counter-gambit accepted	9	22.2%	33.3%	0.01 MB
E10	Blumenfeld counter-gambit, Dus-Chotimursky variation	19	47.4%	50.0%	0.01 MB
E10	Blumenfeld counter-gambit, Spielmann variation	4	0.0%	25.0%	0.00 MB
C27	Boden-Kieseritsky gambit	1	0.0%	100.0%	0.00 MB
C27	Boden-Kieseritsky gambit, Lichtenhein defence	1	100.0%	50.0%	0.00 MB
E11	Bogo-Indian defence	117	38.5%	59.4%	0.09 MB
E11	Bogo-Indian defence, Gruenfeld variation	145	31.7%	52.4%	0.10 MB
E11	Bogo-Indian defence, Nimzovich variation	216	33.3%	54.2%	0.15 MB
A51	Budapest defence declined	2	0.0%	50.0%	0.00 MB
A52	Budapest, Adler variation	8	50.0%	25.0%	0.01 MB
A52	Budapest, Alekhine, Abonyi variation	2	0.0%	50.0%	0.00 MB
A51	Budapest, Fajarowicz variation	5	0.0%	60.0%	0.00 MB
A52	Budapest, Rubinstein variation	8	50.0%	62.5%	0.01 MB
A45	Canard opening	10	30.0%	25.0%	0.01 MB
B10	Caro-Kann defence	354	34.2%	57.2%	0.23 MB
B12	Caro-Kann defence	58	31.0%	55.2%	0.04 MB
B15	Caro-Kann defence	41	31.7%	47.6%	0.03 MB
B12	Caro-Kann, 3.Nd2	46	43.5%	54.3%	0.03 MB
B15	Caro-Kann, Alekhine gambit	3	33.3%	83.3%	0.00 MB
B16	Caro-Kann, Bronstein-Larsen variation	22	22.7%	65.9%	0.02 MB
B12	Caro-Kann, Edinburgh variation	4	50.0%	25.0%	0.00 MB
B15	Caro-Kann, Forgacs variation	43	34.9%	47.7%	0.03 MB
B10	Caro-Kann, Goldman (Spielmann) variation	4	25.0%	37.5%	0.00 MB
B15	Caro-Kann, Gurgenidze counter-attack	2	0.0%	50.0%	0.00 MB
B15	Caro-Kann, Gurgenidze system	56	35.7%	58.9%	0.04 MB
B13	Caro-Kann, Panov-Botvinnik attack	70	51.4%	48.6%	0.05 MB
B14	Caro-Kann, Panov-Botvinnik attack, 5...e6	342	42.4%	56.0%	0.22 MB
B14	Caro-Kann, Panov-Botvinnik attack, 5...g6	40	47.5%	51.3%	0.03 MB
B13	Caro-Kann, Panov-Botvinnik, Czerniak variation	3	33.3%	16.7%	0.00 MB
B13	Caro-Kann, Panov-Botvinnik, Gunderam attack	2	0.0%	50.0%	0.00 MB
B13	Caro-Kann, Panov-Botvinnik, Herzog defence	1	0.0%	0.0%	0.00 MB
B13	Caro-Kann, Panov-Botvinnik, normal variation	8	12.5%	68.8%	0.01 MB
B15	Caro-Kann, Rasa-Studier gambit	4	50.0%	25.0%	0.00 MB
B17	Caro-Kann, Steinitz variation	431	35.7%	54.3%	0.28 MB
B15	Caro-Kann, Tartakower (Nimzovich) variation	22	36.4%	59.1%	0.02 MB
B12	Caro-Kann, Tartakower (fantasy) variation	110	40.9%	55.9%	0.07 MB
B10	Caro-Kann, Two knights variation	49	40.8%	55.1%	0.04 MB
B11	Caro-Kann, Two knights, 3...Bg4	40	30.0%	57.5%	0.03 MB
B12	Caro-Kann, advance variation	731	33.1%	56.4%	0.45 MB
B12	Caro-Kann, advance, Short variation	4	50.0%	75.0%	0.00 MB
B10	Caro-Kann, anti-Caro-Kann defence	121	28.9%	59.9%	0.08 MB
B10	Caro-Kann, anti-anti-Caro-Kann defence	101	45.5%	49.5%	0.07 MB
B18	Caro-Kann, classical variation	73	46.6%	50.7%	0.06 MB
B18	Caro-Kann, classical, 6.h4	64	32.8%	55.5%	0.05 MB
B19	Caro-Kann, classical, 7...Nd7	9	55.6%	50.0%	0.01 MB
B18	Caro-Kann, classical, Flohr variation	2	0.0%	50.0%	0.00 MB
B18	Caro-Kann, classical, Maroczy attack	2	50.0%	25.0%	0.00 MB
B19	Caro-Kann, classical, Spassky variation	664	39.6%	53.4%	0.40 MB
B10	Caro-Kann, closed (Breyer) variation	37	35.1%	50.0%	0.03 MB
B13	Caro-Kann, exchange variation	92	46.7%	50.5%	0.07 MB
B13	Caro-Kann, exchange, Rubinstein variation	14	28.6%	35.7%	0.01 MB
E00	Catalan opening	357	40.1%	55.3%	0.25 MB
E01	Catalan, closed	30	33.3%	56.7%	0.02 MB
E06	Catalan, closed, 5.Nf3	377	46.7%	52.0%	0.26 MB
E07	Catalan, closed, 6...Nbd7	12	25.0%	29.2%	0.01 MB
E08	Catalan, closed, 7.Qc2	3	0.0%	33.3%	0.00 MB
E07	Catalan, closed, Botvinnik variation	8	25.0%	50.0%	0.01 MB
E08	Catalan, closed, Qc2 & b3	20	40.0%	50.0%	0.02 MB
E09	Catalan, closed, main line	23	13.0%	71.7%	0.02 MB
E04	Catalan, open, 5.Nf3	567	39.3%	51.1%	0.35 MB
E02	Catalan, open, 5.Qa4	10	40.0%	70.0%	0.01 MB
E05	Catalan, open, classical line	21	23.8%	50.0%	0.02 MB
C21	Centre game	45	46.7%	70.0%	0.03 MB
C22	Centre game	3	33.3%	16.7%	0.00 MB
C22	Centre game, Berger variation	56	23.2%	70.5%	0.03 MB
C22	Centre game, Paulsen attack	3	0.0%	66.7%	0.00 MB
A00	Clemenz (Mead's, Basman's or de Klerk's) opening	2	100.0%	50.0%	0.00 MB
D05	Colle system	9	44.4%	66.7%	0.01 MB
A56	Czech Benoni defence	19	31.6%	78.9%	0.02 MB
A56	Czech Benoni, King's Indian system	4	25.0%	37.5%	0.00 MB
C21	Danish gambit	2	50.0%	75.0%	0.00 MB
E10	Doery defence	9	33.3%	50.0%	0.01 MB
A00	Dunst (Sleipner, Heinrichsen) opening	5	40.0%	60.0%	0.00 MB
A00	Durkin's attack	4	50.0%	25.0%	0.00 MB
A80	Dutch	51	31.4%	64.7%	0.04 MB
A81	Dutch defence	128	34.4%	56.3%	0.10 MB
A84	Dutch defence	54	33.3%	57.4%	0.04 MB
A90	Dutch defence	43	30.2%	59.3%	0.04 MB
A91	Dutch defence	3	33.3%	83.3%	0.00 MB
A92	Dutch defence	1	0.0%	100.0%	0.00 MB
A81	Dutch defence, Blackburne variation	1	0.0%	0.0%	0.00 MB
A90	Dutch defence, Dutch-Indian (Nimzo-Dutch) variation	4	25.0%	37.5%	0.01 MB
A84	Dutch defence, Rubinstein variation	27	40.7%	50.0%	0.02 MB
A85	Dutch with c4 & Nc3	10	20.0%	60.0%	0.01 MB
A86	Dutch with c4 & g3	4	50.0%	25.0%	0.00 MB
A80	Dutch, 2.Bg5 variation	17	29.4%	55.9%	0.01 MB
A82	Dutch, Balogh defence	1	0.0%	100.0%	0.00 MB
A97	Dutch, Ilyin-Genevsky variation	1	0.0%	100.0%	0.00 MB
A98	Dutch, Ilyin-Genevsky variation with Qc2	1	100.0%	50.0%	0.00 MB
A99	Dutch, Ilyin-Genevsky variation with b3	5	60.0%	70.0%	0.01 MB
A97	Dutch, Ilyin-Genevsky, Winter variation	7	57.1%	57.1%	0.01 MB
A86	Dutch, Leningrad variation	6	50.0%	58.3%	0.01 MB
A87	Dutch, Leningrad, main variation	16	62.5%	62.5%	0.02 MB
A89	Dutch, Leningrad, main variation with Nc6	24	33.3%	66.7%	0.02 MB
A88	Dutch, Leningrad, main variation with c6	34	26.5%	72.1%	0.03 MB
A80	Dutch, Manhattan (Alapin, Ulvestad) variation	1	100.0%	50.0%	0.00 MB
A84	Dutch, Staunton gambit deferred	8	75.0%	37.5%	0.01 MB
A83	Dutch, Staunton gambit, Staunton's line	1	100.0%	50.0%	0.00 MB
A82	Dutch, Staunton gambit, Tartakower variation	1	100.0%	50.0%	0.00 MB
A96	Dutch, classical variation	10	30.0%	65.0%	0.01 MB
A92	Dutch, stonewall variation	1	100.0%	50.0%	0.00 MB
A94	Dutch, stonewall with Ba3	3	100.0%	50.0%	0.00 MB
A92	Dutch, stonewall with Nc3	3	33.3%	50.0%	0.00 MB
A95	Dutch, stonewall with Nc3	8	12.5%	43.8%	0.01 MB
A93	Dutch, stonewall, Botwinnik variation	8	25.0%	50.0%	0.01 MB
A90	Dutch-Indian, Alekhine variation	4	0.0%	50.0%	0.00 MB
E10	Dzindzikhashvili defence	8	87.5%	56.3%	0.01 MB
A10	English opening	333	42.9%	53.9%	0.21 MB
A13	English opening	362	34.0%	50.7%	0.25 MB
A15	English opening	739	38.7%	53.0%	0.50 MB
A16	English opening	130	28.5%	52.7%	0.09 MB
A17	English opening	32	43.8%	56.3%	0.02 MB
A20	English opening	882	40.0%	54.8%	0.56 MB
A21	English opening	217	30.0%	59.2%	0.14 MB
A22	English opening	115	31.3%	55.7%	0.08 MB
A13	English opening, Agincourt variation	116	46.6%	54.3%	0.10 MB
A15	English, 1...Nf6 (Anglo-Indian defense)	145	29.0%	57.2%	0.10 MB
A10	English, Adorjan defence	16	50.0%	56.3%	0.01 MB
A10	English, Anglo-Dutch defense	33	36.4%	51.5%	0.03 MB
A16	English, Anglo-Gruenfeld defense	7	42.9%	50.0%	0.01 MB
A16	English, Anglo-Gruenfeld, Czech defense	6	50.0%	41.7%	0.01 MB
A16	English, Anglo-Gruenfeld, Smyslov defense	5	60.0%	70.0%	0.00 MB
A12	English, Bled variation	5	20.0%	90.0%	0.00 MB
A26	English, Botvinnik system	31	25.8%	38.7%	0.02 MB
A28	English, Bradley Beach variation	9	33.3%	38.9%	0.01 MB
A24	English, Bremen system with ...g6	8	50.0%	62.5%	0.01 MB
A23	English, Bremen system, Keres variation	29	20.7%	62.1%	0.02 MB
A22	English, Bremen, Smyslov system	215	34.4%	47.9%	0.14 MB
A22	English, Bremen, reverse dragon	103	38.8%	49.5%	0.08 MB
A12	English, Capablanca's variation	11	54.5%	36.4%	0.01 MB
A22	English, Carls' Bremen system	34	35.3%	61.8%	0.03 MB
A11	English, Caro-Kann defensive system	68	44.1%	54.4%	0.05 MB
A12	English, Caro-Kann defensive system	8	62.5%	56.3%	0.01 MB
A12	English, Caro-Kann defensive system, Bogolyubov variation	7	28.6%	71.4%	0.01 MB
A10	English, Jaenisch gambit	2	0.0%	100.0%	0.00 MB
A21	English, Keres variation	2	50.0%	25.0%	0.00 MB
A21	English, Kramnik-Shirov counterattack	76	31.6%	51.3%	0.06 MB
A13	English, Kurajica defence	4	25.0%	37.5%	0.00 MB
A12	English, London defensive system	10	30.0%	25.0%	0.01 MB
A18	English, Mikenas-Carls variation	1	0.0%	100.0%	0.00 MB
A18	English, Mikenas-Carls, Flohr variation	5	20.0%	70.0%	0.00 MB
A19	English, Mikenas-Carls, Sicilian variation	19	36.8%	44.7%	0.02 MB
A28	English, Nenarokov variation	11	45.5%	68.2%	0.01 MB
A13	English, Neo-Catalan	27	40.7%	68.5%	0.02 MB
A13	English, Neo-Catalan accepted	36	41.7%	54.2%	0.03 MB
A14	English, Neo-Catalan declined	28	53.6%	55.4%	0.02 MB
A12	English, New York (London) defensive system	3	66.7%	33.3%	0.00 MB
A17	English, Nimzo-English opening	72	30.6%	59.7%	0.05 MB
A20	English, Nimzovich variation	6	16.7%	91.7%	0.01 MB
A20	English, Nimzovich, Flohr variation	15	26.7%	40.0%	0.01 MB
A17	English, Queens Indian formation	13	38.5%	50.0%	0.01 MB
A17	English, Queens Indian, Romanishin variation	3	66.7%	33.3%	0.00 MB
A13	English, Romanishin gambit	7	85.7%	57.1%	0.01 MB
A25	English, Sicilian reversed	89	31.5%	48.3%	0.06 MB
A21	English, Smyslov defence	5	20.0%	30.0%	0.00 MB
A14	English, Symmetrical, Keres defence	108	50.9%	55.1%	0.08 MB
A12	English, Torre defensive system	13	53.8%	50.0%	0.01 MB
A21	English, Troeger defence	16	25.0%	62.5%	0.01 MB
A13	English, Wimpey system	11	54.5%	63.6%	0.01 MB
A25	English, closed system	155	35.5%	57.1%	0.11 MB
A26	English, closed system	35	25.7%	52.9%	0.03 MB
A25	English, closed system (without ...d6)	21	38.1%	57.1%	0.02 MB
A25	English, closed, 5.Rb1	35	51.4%	54.3%	0.03 MB
A25	English, closed, 5.Rb1 Taimanov variation	1	0.0%	0.0%	0.00 MB
A25	English, closed, Hort variation	2	50.0%	25.0%	0.00 MB
A28	English, four knights system	62	46.8%	49.2%	0.05 MB
A28	English, four knights, 4.e3	214	34.6%	54.2%	0.14 MB
A28	English, four knights, Capablanca variation	40	42.5%	53.8%	0.03 MB
A28	English, four knights, Marini variation	54	44.4%	46.3%	0.04 MB
A28	English, four knights, Nimzovich variation	35	34.3%	42.9%	0.03 MB
A28	English, four knights, Romanishin variation	81	50.6%	57.4%	0.06 MB
A28	English, four knights, Stean variation	21	38.1%	61.9%	0.01 MB
A29	English, four knights, kingside fianchetto	1250	37.5%	51.8%	0.76 MB
A30	English, symmetrical variation	713	35.8%	55.2%	0.46 MB
A32	English, symmetrical variation	20	35.0%	62.5%	0.02 MB
A33	English, symmetrical variation	161	44.1%	55.6%	0.11 MB
A34	English, symmetrical variation	221	34.4%	56.1%	0.15 MB
A35	English, symmetrical variation	35	28.6%	48.6%	0.04 MB
A36	English, symmetrical variation	24	20.8%	68.8%	0.02 MB
A37	English, symmetrical variation	36	25.0%	54.2%	0.03 MB
A38	English, symmetrical variation	75	44.0%	47.3%	0.06 MB
A31	English, symmetrical, Benoni formation	120	44.2%	58.8%	0.10 MB
A36	English, symmetrical, Botvinnik system	7	42.9%	50.0%	0.01 MB
A36	English, symmetrical, Botvinnik system reversed	7	0.0%	42.9%	0.01 MB
A37	English, symmetrical, Botvinnik system reversed	65	26.2%	54.6%	0.05 MB
A33	English, symmetrical, Geller variation	105	30.5%	56.2%	0.08 MB
A34	English, symmetrical, Rubinstein system	15	40.0%	46.7%	0.01 MB
A35	English, symmetrical, four knights system	274	40.5%	52.7%	0.19 MB
A30	English, symmetrical, hedgehog system	455	38.7%	57.1%	0.30 MB
A30	English, symmetrical, hedgehog, flexible formation	74	43.2%	56.8%	0.05 MB
A38	English, symmetrical, main line with b3	1	100.0%	50.0%	0.00 MB
A38	English, symmetrical, main line with d3	5	0.0%	0.0%	0.01 MB
A39	English, symmetrical, main line with d4	84	44.0%	58.9%	0.06 MB
A34	English, symmetrical, three knights system	83	42.2%	60.8%	0.07 MB
A27	English, three knights system	37	27.0%	51.4%	0.03 MB
A36	English, ultra-symmetrical variation	75	25.3%	46.0%	0.06 MB
C52	Evans gambit	10	30.0%	55.0%	0.01 MB
C51	Evans gambit declined	1	0.0%	100.0%	0.00 MB
C51	Evans gambit declined, 5.a4	5	20.0%	50.0%	0.01 MB
C51	Evans gambit declined, Showalter variation	1	0.0%	0.0%	0.00 MB
C51	Evans gambit, 5...Be7	1	0.0%	0.0%	0.00 MB
C51	Evans gambit, Cordel variation	4	75.0%	37.5%	0.00 MB
C51	Evans gambit, Goering attack	1	0.0%	0.0%	0.00 MB
C52	Evans gambit, Lasker defence	2	0.0%	0.0%	0.00 MB
C51	Evans gambit, Morphy attack	5	40.0%	20.0%	0.00 MB
C51	Evans gambit, Paulsen variation	9	11.1%	72.2%	0.01 MB
C52	Evans gambit, Richardson attack	3	33.3%	16.7%	0.00 MB
C51	Evans gambit, Stone-Ware variation	2	50.0%	75.0%	0.00 MB
C52	Evans gambit, compromised defence	4	25.0%	62.5%	0.00 MB
C52	Evans gambit, compromised defence, Paulsen variation	9	55.6%	50.0%	0.01 MB
C51	Evans gambit, normal variation	1	0.0%	0.0%	0.00 MB
C49	Four knights	6	50.0%	75.0%	0.00 MB
C46	Four knights game	70	48.6%	51.4%	0.05 MB
C48	Four knights, Bardeleben variation	1	100.0%	50.0%	0.00 MB
C47	Four knights, Belgrade gambit	4	50.0%	50.0%	0.00 MB
C46	Four knights, Gunsberg variation	7	57.1%	42.9%	0.01 MB
C46	Four knights, Italian variation	23	30.4%	50.0%	0.02 MB
C49	Four knights, Nimzovich (Paulsen) variation	4	100.0%	50.0%	0.00 MB
C48	Four knights, Ranken variation	1	100.0%	50.0%	0.00 MB
C48	Four knights, Rubinstein counter-gambit	150	39.3%	57.0%	0.10 MB
C48	Four knights, Rubinstein counter-gambit, Bogolyubov variation	2	0.0%	50.0%	0.00 MB
C48	Four knights, Rubinstein counter-gambit, Henneberger variation	4	50.0%	50.0%	0.00 MB
C48	Four knights, Rubinstein counter-gambit, exchange variation	11	81.8%	59.1%	0.01 MB
C47	Four knights, Scotch variation	4	50.0%	50.0%	0.00 MB
C47	Four knights, Scotch, 4...exd4	47	48.9%	50.0%	0.04 MB
C47	Four knights, Scotch, Krause variation	5	20.0%	70.0%	0.00 MB
C48	Four knights, Spanish variation	12	66.7%	50.0%	0.01 MB
C48	Four knights, Spanish, classical defence	9	11.1%	50.0%	0.01 MB
C48	Four knights, Spielmann variation	1	0.0%	0.0%	0.00 MB
C49	Four knights, double Ruy Lopez	5	20.0%	90.0%	0.01 MB
C49	Four knights, symmetrical variation	39	33.3%	52.6%	0.03 MB
C49	Four knights, symmetrical, Capablanca variation	3	33.3%	50.0%	0.00 MB
C49	Four knights, symmetrical, Maroczy system	14	35.7%	53.6%	0.01 MB
C49	Four knights, symmetrical, Metger unpin	71	38.0%	54.2%	0.05 MB
C49	Four knights, symmetrical, Pillsbury variation	3	0.0%	33.3%	0.00 MB
C00	French defence	136	38.2%	53.7%	0.09 MB
C11	French defence	51	27.5%	47.1%	0.04 MB
C00	French defence, Steiner variation	125	44.8%	50.4%	0.09 MB
C00	French, Alapin variation	2	100.0%	50.0%	0.00 MB
C13	French, Albin-Alekhine-Chatard attack	5	40.0%	40.0%	0.00 MB
C13	French, Albin-Alekhine-Chatard attack, Spielmann variation	2	0.0%	100.0%	0.00 MB
C11	French, Burn variation	753	36.7%	56.2%	0.45 MB
C00	French, Chigorin variation	103	38.8%	53.4%	0.07 MB
C10	French, Fort Knox variation	53	35.8%	50.0%	0.04 MB
C10	French, Frere (Becker) variation	6	16.7%	75.0%	0.00 MB
C11	French, Henneberger variation	8	37.5%	56.3%	0.01 MB
C00	French, King's Indian attack	150	32.7%	51.7%	0.10 MB
C00	French, Labourdonnais variation	114	32.5%	42.5%	0.07 MB
C12	French, MacCutcheon variation	27	40.7%	50.0%	0.02 MB
C12	French, MacCutcheon, Chigorin variation	1	0.0%	0.0%	0.00 MB
C12	French, MacCutcheon, Dr. Olland (Dutch) variation	4	0.0%	100.0%	0.00 MB
C12	French, MacCutcheon, Grigoriev variation	1	100.0%	50.0%	0.00 MB
C12	French, MacCutcheon, Janowski variation	13	38.5%	65.4%	0.01 MB
C12	French, MacCutcheon, Lasker variation	54	25.9%	48.1%	0.04 MB
C12	French, MacCutcheon, Lasker variation, 8...g6	94	29.8%	53.2%	0.06 MB
C12	French, MacCutcheon, advance variation	10	30.0%	25.0%	0.01 MB
C10	French, Paulsen variation	155	29.0%	56.5%	0.10 MB
C00	French, Pelikan variation	31	35.5%	53.2%	0.03 MB
C00	French, Reti (Spielmann) variation	8	50.0%	50.0%	0.01 MB
C10	French, Rubinstein variation	179	44.7%	57.0%	0.13 MB
C00	French, Schlechter variation	78	42.3%	46.8%	0.06 MB
C00	French, Steinitz attack	3	0.0%	33.3%	0.00 MB
C11	French, Steinitz variation	119	33.6%	56.3%	0.08 MB
C11	French, Steinitz, Boleslavsky variation	309	34.0%	56.5%	0.20 MB
C11	French, Steinitz, Gledhill attack	1	100.0%	50.0%	0.00 MB
C11	French, Swiss variation	28	35.7%	53.6%	0.02 MB
C03	French, Tarrasch	200	41.0%	58.5%	0.15 MB
C05	French, Tarrasch, Botvinnik variation	3	33.3%	50.0%	0.00 MB
C07	French, Tarrasch, Eliskases variation	7	42.9%	50.0%	0.01 MB
C04	French, Tarrasch, Guimard main line	23	26.1%	52.2%	0.02 MB
C03	French, Tarrasch, Guimard variation	18	22.2%	66.7%	0.01 MB
C06	French, Tarrasch, Leningrad variation	4	25.0%	87.5%	0.00 MB
C05	French, Tarrasch, closed variation	122	34.4%	57.4%	0.08 MB
C06	French, Tarrasch, closed variation, main line	310	38.4%	61.1%	0.20 MB
C07	French, Tarrasch, open variation	466	46.8%	51.9%	0.31 MB
C09	French, Tarrasch, open variation, main line	229	52.0%	57.9%	0.16 MB
C08	French, Tarrasch, open, 4.ed ed	207	50.2%	54.6%	0.14 MB
C00	French, Two knights variation	26	38.5%	50.0%	0.02 MB
C15	French, Winawer (Nimzovich) variation	49	38.8%	54.1%	0.04 MB
C15	French, Winawer, Alekhine (Maroczy) gambit	24	37.5%	56.3%	0.02 MB
C15	French, Winawer, Alekhine gambit, Kan variation	17	64.7%	50.0%	0.02 MB
C16	French, Winawer, Petrosian variation	20	30.0%	70.0%	0.02 MB
C16	French, Winawer, advance variation	107	29.9%	64.5%	0.07 MB
C17	French, Winawer, advance variation	17	41.2%	67.6%	0.01 MB
C18	French, Winawer, advance variation	27	25.9%	64.8%	0.02 MB
C17	French, Winawer, advance, 5.a3	55	23.6%	66.4%	0.03 MB
C19	French, Winawer, advance, 6...Ne7	29	48.3%	51.7%	0.02 MB
C17	French, Winawer, advance, Bogolyubov variation	114	28.1%	53.5%	0.07 MB
C17	French, Winawer, advance, Russian variation	10	40.0%	40.0%	0.01 MB
C19	French, Winawer, advance, Smyslov variation	30	23.3%	78.3%	0.02 MB
C19	French, Winawer, advance, poisoned pawn variation	661	31.3%	58.8%	0.42 MB
C19	French, Winawer, advance, poisoned pawn, Euwe-Gligoric variation	1	0.0%	0.0%	0.00 MB
C19	French, Winawer, advance, poisoned pawn, Konstantinopolsky variation	106	17.9%	64.6%	0.06 MB
C19	French, Winawer, advance, positional main line	285	28.4%	54.9%	0.18 MB
C18	French, Winawer, classical variation	41	24.4%	51.2%	0.03 MB
C00	French, Wing gambit	4	25.0%	62.5%	0.00 MB
C02	French, advance variation	181	26.5%	54.7%	0.13 MB
C02	French, advance, Euwe variation	145	35.2%	59.7%	0.10 MB
C02	French, advance, Milner-Barry gambit	8	75.0%	62.5%	0.01 MB
C02	French, advance, Nimzovich system	8	50.0%	37.5%	0.01 MB
C02	French, advance, Paulsen attack	117	29.9%	52.6%	0.08 MB
C02	French, advance, Steinitz variation	62	27.4%	36.3%	0.04 MB
C02	French, advance, Wade variation	30	20.0%	63.3%	0.02 MB
C13	French, classical	5	60.0%	30.0%	0.00 MB
C14	French, classical variation	1	100.0%	50.0%	0.00 MB
C14	French, classical, Alapin variation	2	0.0%	100.0%	0.00 MB
C13	French, classical, Anderssen variation	4	0.0%	50.0%	0.00 MB
C13	French, classical, Anderssen-Richter variation	3	0.0%	66.7%	0.00 MB
C13	French, classical, Frankfurt variation	4	25.0%	87.5%	0.00 MB
C14	French, classical, Rubinstein variation	2	50.0%	75.0%	0.00 MB
C14	French, classical, Steinitz variation	69	30.4%	55.8%	0.04 MB
C14	French, classical, Tarrasch variation	2	0.0%	50.0%	0.00 MB
C13	French, classical, Tartakower variation	1	0.0%	100.0%	0.00 MB
C13	French, classical, Vistaneckis (Nimzovich) variation	6	0.0%	66.7%	0.00 MB
C01	French, exchange variation	232	39.7%	54.3%	0.18 MB
C01	French, exchange, Svenonius variation	6	33.3%	33.3%	0.00 MB
C50	Giuoco Pianissimo	149	39.6%	50.0%	0.10 MB
C50	Giuoco Pianissimo, Canal variation	46	43.5%	45.7%	0.03 MB
C50	Giuoco Pianissimo, Italian four knights variation	76	35.5%	52.0%	0.05 MB
C50	Giuoco Piano	26	46.2%	53.8%	0.02 MB
C53	Giuoco Piano	393	35.1%	54.7%	0.27 MB
C54	Giuoco Piano	28	46.4%	48.2%	0.02 MB
C53	Giuoco Piano, Anderssen variation	3	33.3%	50.0%	0.00 MB
C53	Giuoco Piano, Bird's attack	20	40.0%	55.0%	0.02 MB
C53	Giuoco Piano, LaBourdonnais variation	1	0.0%	0.0%	0.00 MB
C53	Giuoco Piano, Mestel variation	1	100.0%	50.0%	0.00 MB
C54	Giuoco Piano, Moeller (Therkatz) attack	7	42.9%	21.4%	0.01 MB
C54	Giuoco Piano, Moeller, bayonet attack	1	0.0%	100.0%	0.00 MB
C53	Giuoco Piano, centre-holding variation	2	100.0%	50.0%	0.00 MB
C53	Giuoco Piano, close variation	2	0.0%	100.0%	0.00 MB
C50	Giuoco Piano, four knights variation	11	18.2%	45.5%	0.01 MB
A00	Grob's attack	3	33.3%	50.0%	0.00 MB
D80	Gruenfeld defence	19	31.6%	68.4%	0.01 MB
D99	Gruenfeld defence, Smyslov, main line	36	50.0%	52.8%	0.02 MB
D93	Gruenfeld with Bf4 e3	43	48.8%	57.0%	0.03 MB
D94	Gruenfeld with e3 Bd3	1	100.0%	50.0%	0.00 MB
D95	Gruenfeld with e3 & Qb3	1	0.0%	100.0%	0.00 MB
D82	Gruenfeld, 4.Bf4	32	46.9%	51.6%	0.02 MB
D92	Gruenfeld, 5.Bf4	84	51.2%	56.5%	0.05 MB
D91	Gruenfeld, 5.Bg5	192	32.3%	47.9%	0.14 MB
D94	Gruenfeld, 5.e3	58	46.6%	57.8%	0.04 MB
D95	Gruenfeld, Botvinnik variation	6	33.3%	50.0%	0.01 MB
D94	Gruenfeld, Flohr defence	1	0.0%	100.0%	0.00 MB
D90	Gruenfeld, Flohr variation	9	11.1%	61.1%	0.01 MB
D83	Gruenfeld, Gruenfeld gambit	5	20.0%	70.0%	0.00 MB
D84	Gruenfeld, Gruenfeld gambit accepted	2	50.0%	25.0%	0.00 MB
D83	Gruenfeld, Gruenfeld gambit, Botvinnik variation	1	100.0%	50.0%	0.00 MB
D83	Gruenfeld, Gruenfeld gambit, Capablanca variation	4	25.0%	62.5%	0.00 MB
D94	Gruenfeld, Makogonov variation	8	75.0%	37.5%	0.01 MB
D94	Gruenfeld, Opovcensky variation	9	33.3%	61.1%	0.01 MB
D81	Gruenfeld, Russian variation	6	66.7%	66.7%	0.01 MB
D96	Gruenfeld, Russian variation	15	46.7%	70.0%	0.01 MB
D97	Gruenfeld, Russian variation with e4	1	0.0%	100.0%	0.00 MB
D97	Gruenfeld, Russian, Alekhine (Hungarian) variation	336	40.2%	47.5%	0.21 MB
D97	Gruenfeld, Russian, Byrne (Simagin) variation	17	23.5%	64.7%	0.01 MB
D98	Gruenfeld, Russian, Keres variation	1	0.0%	100.0%	0.00 MB
D97	Gruenfeld, Russian, Prins variation	117	44.4%	57.3%	0.08 MB
D98	Gruenfeld, Russian, Smyslov variation	39	35.9%	69.2%	0.03 MB
D97	Gruenfeld, Russian, Szabo (Boleslavsky) variation	6	16.7%	58.3%	0.01 MB
D90	Gruenfeld, Schlechter variation	1	0.0%	100.0%	0.00 MB
D94	Gruenfeld, Smyslov defence	22	59.1%	56.8%	0.02 MB
D88	Gruenfeld, Spassky variation, main line, 10...cd, 11.cd	16	56.3%	59.4%	0.01 MB
D89	Gruenfeld, Spassky variation, main line, 13.Bd3	12	75.0%	54.2%	0.01 MB
D80	Gruenfeld, Stockholm variation	42	35.7%	56.0%	0.03 MB
D90	Gruenfeld, Three knights variation	34	29.4%	47.1%	0.03 MB
D85	Gruenfeld, exchange variation	118	40.7%	55.1%	0.08 MB
D87	Gruenfeld, exchange, Seville variation	21	42.9%	64.3%	0.01 MB
D86	Gruenfeld, exchange, Simagin's improved variation	8	37.5%	43.8%	0.01 MB
D89	Gruenfeld, exchange, Sokolsky variation	3	0.0%	0.0%	0.00 MB
D87	Gruenfeld, exchange, Spassky variation	58	37.9%	62.1%	0.04 MB
D86	Gruenfeld, exchange, classical variation	75	42.7%	56.0%	0.06 MB
D85	Gruenfeld, modern exchange variation	698	49.4%	53.9%	0.44 MB
C40	Gunderam defence	28	32.1%	69.6%	0.02 MB
A43	Hawk (Habichd) defence	1	0.0%	0.0%	0.00 MB
C50	Hungarian defence	5	60.0%	50.0%	0.01 MB
C44	Inverted Hanham	5	20.0%	70.0%	0.01 MB
C36	KGA, Abbazia defence, modern variation	6	50.0%	41.7%	0.01 MB
C34	KGA, Becker defence	1	0.0%	100.0%	0.00 MB
C37	KGA, Blachly gambit	1	0.0%	0.0%	0.00 MB
C34	KGA, Bonsch-Osmolovsky variation	2	0.0%	50.0%	0.00 MB
C35	KGA, Cunningham defence	4	0.0%	50.0%	0.00 MB
C35	KGA, Cunningham, Euwe defence	1	0.0%	0.0%	0.00 MB
C34	KGA, Fischer defence	5	20.0%	70.0%	0.00 MB
C38	KGA, Hanstein gambit	1	0.0%	0.0%	0.00 MB
C33	KGA, Keres (Mason-Steinitz) gambit	1	0.0%	0.0%	0.00 MB
C39	KGA, Kieseritsky, Berlin defence, 6.Bc4	1	0.0%	0.0%	0.00 MB
C39	KGA, Kieseritsky, Kolisch defence	4	75.0%	62.5%	0.00 MB
C39	KGA, Kieseritsky, Paulsen defence	1	0.0%	100.0%	0.00 MB
C39	KGA, Kieseritsky, Rice gambit	6	16.7%	41.7%	0.00 MB
C39	KGA, Kieseritsky, long whip (Stockwhip, classical) defence	1	0.0%	0.0%	0.00 MB
C37	KGA, Muzio gambit, Brentano defence	1	100.0%	50.0%	0.00 MB
C34	KGA, Schallop defence	4	25.0%	62.5%	0.00 MB
C33	KGA, bishop's gambit	1	100.0%	50.0%	0.00 MB
C33	KGA, bishop's gambit, Bogolyubov variation	1	0.0%	0.0%	0.00 MB
C33	KGA, bishop's gambit, Gifford variation	2	50.0%	75.0%	0.00 MB
C33	KGA, bishop's gambit, Jaenisch variation	6	16.7%	8.3%	0.00 MB
C33	KGA, bishop's gambit, McDonnell attack	1	0.0%	100.0%	0.00 MB
C33	KGA, bishop's gambit, Steinitz defence	1	0.0%	100.0%	0.00 MB
C30	KGD, 2...Nf6	2	50.0%	25.0%	0.00 MB
C30	KGD, Keene's defence	3	33.3%	83.3%	0.00 MB
C31	KGD, Nimzovich counter-gambit	2	100.0%	50.0%	0.00 MB
C30	KGD, classical variation	9	44.4%	66.7%	0.01 MB
C30	KGD, classical, 4.c3	3	33.3%	50.0%	0.00 MB
C30	KGD, classical, Reti variation	1	100.0%	50.0%	0.00 MB
C20	KP, Lopez opening	2	50.0%	25.0%	0.00 MB
B00	KP, Nimzovich defence	22	40.9%	61.4%	0.02 MB
B00	KP, Nimzovich defence, Bogolyubov variation	5	20.0%	70.0%	0.00 MB
A50	Kevitz-Trajkovich defence	41	43.9%	48.8%	0.03 MB
E60	King's Indian defence	98	37.8%	53.6%	0.09 MB
E61	King's Indian defence, 3.Nc3	117	27.4%	59.8%	0.09 MB
E72	King's Indian with e4 & g3	7	42.9%	64.3%	0.01 MB
E60	King's Indian, 3.Nf3	400	35.8%	57.1%	0.28 MB
E60	King's Indian, 3.g3	109	37.6%	57.3%	0.08 MB
E60	King's Indian, 3.g3, counterthrust variation	1	0.0%	0.0%	0.00 MB
E70	King's Indian, 4.e4	66	22.7%	73.5%	0.05 MB
E73	King's Indian, 5.Be2	5	80.0%	60.0%	0.00 MB
E90	King's Indian, 5.Nf3	91	28.6%	63.7%	0.06 MB
E91	King's Indian, 6.Be2	80	33.8%	64.4%	0.06 MB
E92	King's Indian, Andersson variation	23	60.9%	52.2%	0.02 MB
E60	King's Indian, Anti-Gruenfeld	5	20.0%	50.0%	0.00 MB
E73	King's Indian, Averbakh system	46	28.3%	55.4%	0.03 MB
E74	King's Indian, Averbakh, 6...c5	8	25.0%	62.5%	0.01 MB
E75	King's Indian, Averbakh, main line	3	33.3%	83.3%	0.00 MB
A48	King's Indian, East Indian defence	163	36.8%	50.3%	0.12 MB
E76	King's Indian, Four pawns attack	21	38.1%	66.7%	0.01 MB
E77	King's Indian, Four pawns attack	27	18.5%	68.5%	0.02 MB
E77	King's Indian, Four pawns attack, Florentine gambit	1	100.0%	50.0%	0.00 MB
E76	King's Indian, Four pawns attack, dynamic line	11	36.4%	45.5%	0.01 MB
E79	King's Indian, Four pawns attack, main line	3	33.3%	50.0%	0.00 MB
E92	King's Indian, Gligoric-Taimanov system	158	24.7%	58.5%	0.12 MB
E91	King's Indian, Kazakh variation	40	42.5%	48.8%	0.03 MB
E70	King's Indian, Kramer system	14	28.6%	78.6%	0.01 MB
E90	King's Indian, Larsen variation	13	38.5%	57.7%	0.02 MB
A48	King's Indian, London system	72	41.7%	50.0%	0.06 MB
E71	King's Indian, Makagonov system (5.h3)	47	25.5%	63.8%	0.04 MB
E92	King's Indian, Petrosian system	10	10.0%	45.0%	0.01 MB
E92	King's Indian, Petrosian system, Stein variation	109	33.9%	54.6%	0.08 MB
E93	King's Indian, Petrosian system, main line	7	28.6%	71.4%	0.01 MB
E72	King's Indian, Pomar system	1	100.0%	50.0%	0.00 MB
E80	King's Indian, Saemisch variation	23	30.4%	58.7%	0.02 MB
E81	King's Indian, Saemisch, 5...O-O	182	34.6%	55.8%	0.12 MB
E83	King's Indian, Saemisch, 6...Nc6	4	75.0%	62.5%	0.00 MB
E81	King's Indian, Saemisch, Byrne variation	4	75.0%	62.5%	0.00 MB
E83	King's Indian, Saemisch, Panno formation	6	50.0%	58.3%	0.01 MB
E84	King's Indian, Saemisch, Panno main line	64	35.9%	52.3%	0.05 MB
E82	King's Indian, Saemisch, double fianchetto variation	10	30.0%	55.0%	0.01 MB
E89	King's Indian, Saemisch, orthodox main line	1	0.0%	0.0%	0.00 MB
E86	King's Indian, Saemisch, orthodox, 7.Nge2 c6	45	31.1%	40.0%	0.03 MB
E87	King's Indian, Saemisch, orthodox, 7.d5	39	30.8%	61.5%	0.03 MB
E88	King's Indian, Saemisch, orthodox, 7.d5 c6	61	32.8%	59.0%	0.04 MB
E87	King's Indian, Saemisch, orthodox, Bronstein variation	1	100.0%	50.0%	0.00 MB
E73	King's Indian, Semi-Averbakh system	3	0.0%	66.7%	0.00 MB
E77	King's Indian, Six pawns attack	2	0.0%	0.0%	0.00 MB
E61	King's Indian, Smyslov system	16	37.5%	43.8%	0.01 MB
A48	King's Indian, Torre attack	126	31.7%	55.6%	0.09 MB
E90	King's Indian, Zinnowitz variation	13	38.5%	50.0%	0.01 MB
E70	King's Indian, accelerated Averbakh system	5	20.0%	70.0%	0.00 MB
E92	King's Indian, classical variation	6	33.3%	66.7%	0.00 MB
E62	King's Indian, fianchetto variation	14	35.7%	53.6%	0.01 MB
E62	King's Indian, fianchetto with ...Nc6	10	40.0%	50.0%	0.01 MB
E67	King's Indian, fianchetto with ...Nd7	16	50.0%	62.5%	0.02 MB
A49	King's Indian, fianchetto without c4	146	35.6%	58.9%	0.10 MB
E62	King's Indian, fianchetto, Kavalek (Bronstein) variation	108	32.4%	60.6%	0.07 MB
E62	King's Indian, fianchetto, Larsen system	44	45.5%	61.4%	0.03 MB
E63	King's Indian, fianchetto, Panno variation	480	35.2%	55.9%	0.32 MB
E62	King's Indian, fianchetto, Simagin variation	7	14.3%	64.3%	0.01 MB
E62	King's Indian, fianchetto, Uhlmann (Szabo) variation	35	28.6%	57.1%	0.03 MB
E66	King's Indian, fianchetto, Yugoslav Panno	40	35.0%	55.0%	0.03 MB
E64	King's Indian, fianchetto, Yugoslav system	10	30.0%	75.0%	0.01 MB
E65	King's Indian, fianchetto, Yugoslav, 7.O-O	12	50.0%	50.0%	0.01 MB
E69	King's Indian, fianchetto, classical main line	169	34.9%	60.1%	0.11 MB
E67	King's Indian, fianchetto, classical variation	78	30.8%	56.4%	0.05 MB
E68	King's Indian, fianchetto, classical variation, 8.e4	223	34.1%	60.1%	0.15 MB
E62	King's Indian, fianchetto, lesser Simagin (Spassky) variation	23	47.8%	54.3%	0.02 MB
E94	King's Indian, orthodox variation	143	33.6%	58.0%	0.10 MB
E94	King's Indian, orthodox, 7...Nbd7	184	35.9%	60.9%	0.13 MB
E95	King's Indian, orthodox, 7...Nbd7, 8.Re1	46	34.8%	63.0%	0.03 MB
E96	King's Indian, orthodox, 7...Nbd7, main line	16	31.3%	40.6%	0.01 MB
E97	King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)	832	31.4%	55.6%	0.55 MB
E98	King's Indian, orthodox, Aronin-Taimanov, 9.Ne1	380	22.4%	60.7%	0.24 MB
E99	King's Indian, orthodox, Aronin-Taimanov, Benko attack	1	0.0%	100.0%	0.00 MB
E97	King's Indian, orthodox, Aronin-Taimanov, bayonet attack	360	34.4%	57.2%	0.22 MB
E99	King's Indian, orthodox, Aronin-Taimanov, main line	5	20.0%	70.0%	0.00 MB
E94	King's Indian, orthodox, Donner variation	14	14.3%	71.4%	0.01 MB
C30	King's gambit	2	0.0%	100.0%	0.00 MB
C34	King's knight's gambit	1	100.0%	50.0%	0.00 MB
C38	King's knight's gambit	3	0.0%	0.0%	0.00 MB
C44	King's pawn game	3	33.3%	50.0%	0.00 MB
C50	King's pawn game	76	34.2%	56.6%	0.05 MB
B00	King's pawn opening	113	26.5%	58.4%	0.08 MB
C40	Latvian, Fraser defence	1	100.0%	50.0%	0.00 MB
B00	Lemming defence	2	50.0%	25.0%	0.00 MB
D00	Levitsky attack (Queen's bishop attack)	176	36.4%	44.9%	0.12 MB
A00	Mieses opening	1	100.0%	50.0%	0.00 MB
A40	Modern defence	46	26.1%	69.6%	0.03 MB
A42	Modern defence, Averbakh system	14	42.9%	64.3%	0.02 MB
A42	Modern defence, Averbakh system, Kotov variation	1	0.0%	100.0%	0.00 MB
D70	Neo-Gruenfeld (Kemeri) defence	7	14.3%	50.0%	0.01 MB
D70	Neo-Gruenfeld defence	19	42.1%	47.4%	0.01 MB
D73	Neo-Gruenfeld, 5.Nf3	70	57.1%	54.3%	0.06 MB
D71	Neo-Gruenfeld, 5.cd	14	57.1%	50.0%	0.01 MB
D72	Neo-Gruenfeld, 5.cd, main line	13	38.5%	34.6%	0.01 MB
D77	Neo-Gruenfeld, 6.O-O	79	41.8%	52.5%	0.06 MB
D78	Neo-Gruenfeld, 6.O-O c6	77	39.0%	53.2%	0.05 MB
D79	Neo-Gruenfeld, 6.O-O, main line	37	45.9%	50.0%	0.03 MB
D74	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O	13	46.2%	61.5%	0.01 MB
D76	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O Nb6	44	47.7%	55.7%	0.04 MB
D75	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc3	11	27.3%	59.1%	0.01 MB
D75	Neo-Gruenfeld, 6.cd Nxd5, 7.O-O c5, 8.dc	1	0.0%	100.0%	0.00 MB
E00	Neo-Indian (Seirawan) attack	86	31.4%	48.3%	0.07 MB
E20	Nimzo-Indian defence	8	25.0%	37.5%	0.01 MB
E40	Nimzo-Indian, 4.e3	41	26.8%	50.0%	0.03 MB
E46	Nimzo-Indian, 4.e3 O-O	9	22.2%	44.4%	0.01 MB
E47	Nimzo-Indian, 4.e3 O-O, 5.Bd3	44	50.0%	54.5%	0.03 MB
E48	Nimzo-Indian, 4.e3 O-O, 5.Bd3 d5	56	37.5%	49.1%	0.04 MB
E41	Nimzo-Indian, 4.e3 c5	79	39.2%	55.1%	0.06 MB
E42	Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)	164	42.7%	53.0%	0.11 MB
E51	Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d5	11	72.7%	45.5%	0.01 MB
E50	Nimzo-Indian, 4.e3 e8g8, 5.Nf3, without ...d5	17	41.2%	44.1%	0.02 MB
E49	Nimzo-Indian, 4.e3, Botvinnik system	28	50.0%	67.9%	0.02 MB
E45	Nimzo-Indian, 4.e3, Bronstein (Byrne) variation	30	53.3%	60.0%	0.02 MB
E53	Nimzo-Indian, 4.e3, Gligoric system with 7...Nbd7	3	33.3%	16.7%	0.00 MB
E54	Nimzo-Indian, 4.e3, Gligoric system with 7...dc	157	42.7%	55.1%	0.11 MB
E55	Nimzo-Indian, 4.e3, Gligoric system, Bronstein variation	829	46.1%	53.7%	0.54 MB
E54	Nimzo-Indian, 4.e3, Gligoric system, Smyslov variation	3	66.7%	66.7%	0.00 MB
E53	Nimzo-Indian, 4.e3, Keres variation	16	43.8%	65.6%	0.01 MB
E51	Nimzo-Indian, 4.e3, Ragozin variation	3	66.7%	66.7%	0.00 MB
E40	Nimzo-Indian, 4.e3, Taimanov variation	3	0.0%	33.3%	0.00 MB
E59	Nimzo-Indian, 4.e3, main line	428	43.0%	51.2%	0.27 MB
E52	Nimzo-Indian, 4.e3, main line with ...b6	47	36.2%	62.8%	0.04 MB
E53	Nimzo-Indian, 4.e3, main line with ...c5	51	43.1%	66.7%	0.04 MB
E56	Nimzo-Indian, 4.e3, main line with 7...Nc6	16	50.0%	56.3%	0.01 MB
E58	Nimzo-Indian, 4.e3, main line with 8...Bxc3	247	32.4%	53.4%	0.16 MB
E57	Nimzo-Indian, 4.e3, main line with 8...dc and 9...cd	5	60.0%	30.0%	0.00 MB
E43	Nimzo-Indian, Fischer variation	70	37.1%	58.6%	0.05 MB
E44	Nimzo-Indian, Fischer variation, 5.Ne2	57	35.1%	57.9%	0.04 MB
E20	Nimzo-Indian, Kmoch variation	56	32.1%	58.9%	0.04 MB
E30	Nimzo-Indian, Leningrad variation	53	32.1%	53.8%	0.04 MB
E30	Nimzo-Indian, Leningrad, ...b5 gambit	3	33.3%	50.0%	0.00 MB
E31	Nimzo-Indian, Leningrad, main line	10	10.0%	45.0%	0.01 MB
E46	Nimzo-Indian, Reshevsky variation	65	47.7%	46.9%	0.05 MB
E20	Nimzo-Indian, Romanishin-Kasparov (Steiner) system	82	36.6%	53.7%	0.06 MB
E24	Nimzo-Indian, Saemisch variation	16	50.0%	31.3%	0.01 MB
E25	Nimzo-Indian, Saemisch variation	5	100.0%	50.0%	0.00 MB
E27	Nimzo-Indian, Saemisch variation	2	50.0%	25.0%	0.00 MB
E28	Nimzo-Indian, Saemisch variation	3	0.0%	100.0%	0.00 MB
E24	Nimzo-Indian, Saemisch, Botvinnik variation	1	0.0%	0.0%	0.00 MB
E29	Nimzo-Indian, Saemisch, Capablanca variation	8	37.5%	31.3%	0.01 MB
E25	Nimzo-Indian, Saemisch, Keres variation	41	51.2%	47.6%	0.03 MB
E26	Nimzo-Indian, Saemisch, O'Kelly variation	5	0.0%	20.0%	0.01 MB
E25	Nimzo-Indian, Saemisch, Romanovsky variation	1	100.0%	50.0%	0.00 MB
E29	Nimzo-Indian, Saemisch, main line	8	25.0%	50.0%	0.01 MB
E46	Nimzo-Indian, Simagin variation	11	9.1%	68.2%	0.01 MB
E22	Nimzo-Indian, Spielmann variation	12	41.7%	54.2%	0.01 MB
E23	Nimzo-Indian, Spielmann, 4...c5, 5.dc Nc6	2	0.0%	50.0%	0.00 MB
E23	Nimzo-Indian, Spielmann, Karlsbad variation	1	100.0%	50.0%	0.00 MB
E32	Nimzo-Indian, classical variation	1194	41.5%	54.1%	0.73 MB
E33	Nimzo-Indian, classical, 4...Nc6	7	57.1%	42.9%	0.01 MB
E38	Nimzo-Indian, classical, 4...c5	52	30.8%	69.2%	0.04 MB
E32	Nimzo-Indian, classical, Adorjan gambit	20	25.0%	52.5%	0.01 MB
E36	Nimzo-Indian, classical, Botvinnik variation	2	0.0%	50.0%	0.00 MB
E33	Nimzo-Indian, classical, Milner-Barry (Zurich) variation	50	32.0%	56.0%	0.04 MB
E34	Nimzo-Indian, classical, Noa variation	117	49.6%	53.0%	0.08 MB
E36	Nimzo-Indian, classical, Noa variation, 5.a3	17	17.6%	44.1%	0.01 MB
E35	Nimzo-Indian, classical, Noa variation, 5.cd ed	62	41.9%	59.7%	0.05 MB
E37	Nimzo-Indian, classical, Noa variation, main line, 7.Qc2	15	33.3%	76.7%	0.01 MB
E39	Nimzo-Indian, classical, Pirc variation	111	37.8%	57.7%	0.08 MB
E41	Nimzo-Indian, e3, Huebner variation	76	28.9%	42.1%	0.06 MB
E21	Nimzo-Indian, three knights variation	240	35.8%	50.4%	0.17 MB
A01	Nimzovich-Larsen attack	23	17.4%	43.5%	0.02 MB
A01	Nimzovich-Larsen attack, Dutch variation	8	0.0%	75.0%	0.01 MB
A01	Nimzovich-Larsen attack, English variation	11	27.3%	59.1%	0.01 MB
A01	Nimzovich-Larsen attack, Indian variation	22	13.6%	43.2%	0.02 MB
A01	Nimzovich-Larsen attack, classical variation	37	37.8%	54.1%	0.03 MB
A01	Nimzovich-Larsen attack, modern variation	91	34.1%	53.3%	0.07 MB
A01	Nimzovich-Larsen attack, symmetrical variation	3	0.0%	33.3%	0.00 MB
A00	Novosibirsk opening	1	100.0%	50.0%	0.00 MB
A43	Old Benoni defence	78	28.2%	59.0%	0.06 MB
A44	Old Benoni defence	4	100.0%	50.0%	0.00 MB
A43	Old Benoni, Franco-Benoni defence	2	50.0%	25.0%	0.00 MB
A43	Old Benoni, Mujannah formation	4	25.0%	87.5%	0.00 MB
A43	Old Benoni, Schmid's system	2	0.0%	0.0%	0.00 MB
A41	Old Indian defence	35	34.3%	62.9%	0.03 MB
A53	Old Indian defence	140	32.1%	59.6%	0.10 MB
A53	Old Indian, Janowski variation	9	22.2%	66.7%	0.01 MB
A41	Old Indian, Tartakower (Wade) variation	48	35.4%	59.4%	0.03 MB
A54	Old Indian, Ukrainian variation	10	60.0%	70.0%	0.01 MB
A54	Old Indian, Ukrainian variation, 4.Nf3	11	45.5%	59.1%	0.01 MB
A55	Old Indian, main line	64	46.9%	60.9%	0.05 MB
B00	Owen defence	33	33.3%	65.2%	0.03 MB
C42	Petrov three knights game	43	23.3%	65.1%	0.04 MB
C42	Petrov's defence	63	34.9%	50.8%	0.04 MB
C42	Petrov, Cochrane gambit	5	40.0%	40.0%	0.00 MB
C42	Petrov, Cozio (Lasker) attack	17	47.1%	52.9%	0.02 MB
C42	Petrov, Damiano variation	1	0.0%	100.0%	0.00 MB
C42	Petrov, French attack	1	100.0%	50.0%	0.00 MB
C42	Petrov, Italian variation	25	24.0%	52.0%	0.02 MB
C42	Petrov, Kaufmann attack	15	13.3%	40.0%	0.01 MB
C42	Petrov, Nimzovich attack	39	43.6%	55.1%	0.03 MB
C42	Petrov, Paulsen attack	21	9.5%	47.6%	0.02 MB
C43	Petrov, Urusov gambit	2	50.0%	75.0%	0.00 MB
C42	Petrov, classical attack	47	40.4%	60.6%	0.03 MB
C42	Petrov, classical attack, Berger variation	1	0.0%	100.0%	0.00 MB
C42	Petrov, classical attack, Chigorin variation	100	31.0%	54.5%	0.07 MB
C42	Petrov, classical attack, Jaenisch variation	430	40.2%	60.3%	0.28 MB
C42	Petrov, classical attack, Krause variation	1	0.0%	100.0%	0.00 MB
C42	Petrov, classical attack, Marshall variation	249	36.5%	55.6%	0.15 MB
C42	Petrov, classical attack, Mason variation	9	33.3%	72.2%	0.01 MB
C42	Petrov, classical attack, close variation	8	37.5%	31.3%	0.01 MB
C43	Petrov, modern (Steinitz) attack	10	40.0%	60.0%	0.01 MB
C43	Petrov, modern attack, Steinitz variation	1	100.0%	50.0%	0.00 MB
C43	Petrov, modern attack, Symmetrical variation	209	35.4%	50.2%	0.13 MB
C43	Petrov, modern attack, Trifunovic variation	14	50.0%	46.4%	0.01 MB
C43	Petrov, modern attack, main line	22	45.5%	63.6%	0.02 MB
C41	Philidor's defence	35	40.0%	57.1%	0.02 MB
C41	Philidor, Hanham variation	3	66.7%	66.7%	0.01 MB
C41	Philidor, Hanham, Delmar variation	2	100.0%	50.0%	0.00 MB
C41	Philidor, Hanham, Krause variation	3	33.3%	16.7%	0.00 MB
C41	Philidor, Hanham, Schlechter variation	10	10.0%	55.0%	0.01 MB
C41	Philidor, Hanham, Steiner variation	2	50.0%	25.0%	0.00 MB
C41	Philidor, Improved Hanham variation	61	37.7%	61.5%	0.05 MB
C41	Philidor, Larsen variation	6	33.3%	50.0%	0.01 MB
C41	Philidor, Nimzovich, Sokolsky variation	2	50.0%	75.0%	0.00 MB
C41	Philidor, Philidor counter-gambit	1	100.0%	50.0%	0.00 MB
C41	Philidor, Philidor counter-gambit, Zukertort variation	3	0.0%	100.0%	0.00 MB
C41	Philidor, Philidor counter-gambit, del Rio attack	1	0.0%	100.0%	0.00 MB
C41	Philidor, Steinitz variation	3	33.3%	16.7%	0.00 MB
C41	Philidor, exchange variation	26	23.1%	46.2%	0.02 MB
B07	Pirc defence	73	28.8%	52.7%	0.05 MB
B07	Pirc, 150 attack	53	41.5%	58.5%	0.04 MB
B09	Pirc, Austrian attack	14	35.7%	53.6%	0.01 MB
B09	Pirc, Austrian attack, 6.Bd3	47	40.4%	45.7%	0.04 MB
B09	Pirc, Austrian attack, 6.Be3	9	22.2%	66.7%	0.01 MB
B09	Pirc, Austrian attack, 6.e5	5	60.0%	50.0%	0.01 MB
B09	Pirc, Austrian attack, Ljubojevic variation	1	0.0%	0.0%	0.00 MB
B09	Pirc, Austrian attack, dragon formation	26	50.0%	67.3%	0.02 MB
B07	Pirc, Byrne variation	31	48.4%	59.7%	0.03 MB
B07	Pirc, Holmov system	2	100.0%	50.0%	0.00 MB
B07	Pirc, Sveshnikov system	26	34.6%	44.2%	0.02 MB
B07	Pirc, Ufimtsev-Pytel variation	44	31.8%	54.5%	0.04 MB
B07	Pirc, bayonet (Mariotti) attack	2	100.0%	50.0%	0.00 MB
B08	Pirc, classical (two knights) system	43	32.6%	62.8%	0.03 MB
B08	Pirc, classical system, 5.Be2	139	33.1%	54.7%	0.10 MB
B08	Pirc, classical, h3 system	37	48.6%	48.6%	0.03 MB
A00	Polish (Sokolsky) opening	21	33.3%	31.0%	0.02 MB
A40	Polish defence	5	80.0%	60.0%	0.01 MB
A00	Polish, Outflank variation	4	25.0%	62.5%	0.00 MB
C44	Ponziani counter-gambit	6	50.0%	41.7%	0.00 MB
C44	Ponziani opening	9	33.3%	72.2%	0.01 MB
C44	Ponziani, Jaenisch counter-attack	25	40.0%	64.0%	0.02 MB
A42	Pterodactyl defence	18	50.0%	63.9%	0.02 MB
D21	QGA, 3.Nf3	46	32.6%	57.6%	0.03 MB
D20	QGA, 3.e4	179	34.1%	57.3%	0.11 MB
D26	QGA, 4...e6	60	45.0%	52.5%	0.04 MB
D24	QGA, 4.Nc3	16	37.5%	62.5%	0.01 MB
D25	QGA, 4.e3	7	42.9%	64.3%	0.01 MB
D22	QGA, Alekhine defence	13	53.8%	57.7%	0.01 MB
D22	QGA, Alekhine defence, Alatortsev variation	1	100.0%	50.0%	0.00 MB
D21	QGA, Alekhine defense, Borisenko-Furman variation	2	50.0%	25.0%	0.00 MB
D24	QGA, Bogolyubov variation	4	75.0%	37.5%	0.00 MB
D21	QGA, Ericson variation	1	0.0%	0.0%	0.00 MB
D25	QGA, Flohr variation	14	28.6%	64.3%	0.01 MB
D22	QGA, Haberditz variation	3	66.7%	33.3%	0.00 MB
D25	QGA, Janowsky-Larsen variation	38	42.1%	57.9%	0.03 MB
D20	QGA, Linares variation	9	44.4%	55.6%	0.01 MB
D23	QGA, Mannheim variation	8	37.5%	56.3%	0.01 MB
D25	QGA, Smyslov variation	6	66.7%	66.7%	0.01 MB
D26	QGA, classical variation	191	52.4%	52.9%	0.14 MB
D26	QGA, classical variation, 6.O-O	8	50.0%	50.0%	0.01 MB
D27	QGA, classical, 6...a6	394	49.2%	56.3%	0.26 MB
D28	QGA, classical, 7...b5	17	29.4%	67.6%	0.01 MB
D28	QGA, classical, 7.Qe2	17	52.9%	55.9%	0.01 MB
D29	QGA, classical, 8...Bb7	67	37.3%	41.0%	0.05 MB
D26	QGA, classical, Furman variation	1	0.0%	0.0%	0.00 MB
D27	QGA, classical, Geller variation	13	53.8%	65.4%	0.01 MB
D27	QGA, classical, Rubinstein variation	453	41.9%	56.1%	0.29 MB
D29	QGA, classical, Smyslov variation	8	37.5%	56.3%	0.01 MB
D26	QGA, classical, Steinitz variation	4	75.0%	62.5%	0.00 MB
D30	QGD	55	43.6%	58.2%	0.04 MB
D51	QGD	1	100.0%	50.0%	0.00 MB
D52	QGD	6	50.0%	58.3%	0.01 MB
D30	QGD Slav	30	56.7%	58.3%	0.03 MB
D15	QGD Slav accepted	15	40.0%	33.3%	0.01 MB
D16	QGD Slav accepted, Alapin variation	7	14.3%	78.6%	0.00 MB
D10	QGD Slav defence	390	35.9%	54.6%	0.27 MB
D10	QGD Slav defence, Alekhine variation	4	0.0%	75.0%	0.00 MB
D10	QGD Slav defence, exchange variation	168	39.3%	54.2%	0.13 MB
D11	QGD Slav, 3.Nf3	174	37.9%	54.0%	0.13 MB
D15	QGD Slav, 4.Nc3	214	34.1%	54.4%	0.15 MB
D11	QGD Slav, 4.e3	138	34.1%	52.5%	0.10 MB
D12	QGD Slav, 4.e3 Bf5	332	39.2%	54.2%	0.22 MB
D15	QGD Slav, 5.e3 (Alekhine variation)	18	27.8%	58.3%	0.01 MB
D12	QGD Slav, Amsterdam variation	3	33.3%	83.3%	0.00 MB
D11	QGD Slav, Breyer variation	21	33.3%	59.5%	0.02 MB
D17	QGD Slav, Carlsbad variation	57	31.6%	52.6%	0.04 MB
D17	QGD Slav, Czech defence	24	37.5%	43.8%	0.02 MB
D18	QGD Slav, Dutch variation	16	12.5%	56.3%	0.01 MB
D19	QGD Slav, Dutch variation	270	33.7%	58.7%	0.18 MB
D19	QGD Slav, Dutch variation, main line	39	33.3%	60.3%	0.03 MB
D17	QGD Slav, Krause attack	49	30.6%	64.3%	0.04 MB
D15	QGD Slav, Schlechter variation	18	44.4%	55.6%	0.01 MB
D16	QGD Slav, Smyslov variation	10	20.0%	60.0%	0.01 MB
D16	QGD Slav, Soultanbeieff variation	4	50.0%	75.0%	0.00 MB
D16	QGD Slav, Steiner variation	18	22.2%	77.8%	0.01 MB
D15	QGD Slav, Suechting variation	2	50.0%	75.0%	0.00 MB
D15	QGD Slav, Tolush-Geller gambit	5	20.0%	10.0%	0.00 MB
D17	QGD Slav, Wiesbaden variation	71	31.0%	59.2%	0.04 MB
D10	QGD Slav, Winawer counter-gambit	24	20.8%	56.3%	0.02 MB
D12	QGD Slav, exchange variation	16	25.0%	56.3%	0.01 MB
D13	QGD Slav, exchange variation	74	35.1%	59.5%	0.05 MB
D14	QGD Slav, exchange variation, 6.Bf4 Bf5	39	46.2%	53.8%	0.03 MB
D14	QGD Slav, exchange, Trifunovic variation	12	33.3%	41.7%	0.01 MB
D43	QGD semi-Slav	986	37.1%	52.8%	0.61 MB
D45	QGD semi-Slav, 5...Nd7	90	28.9%	45.6%	0.07 MB
D44	QGD semi-Slav, 5.Bg5 dc	11	45.5%	50.0%	0.01 MB
D45	QGD semi-Slav, 5.e3	48	31.3%	55.2%	0.03 MB
D46	QGD semi-Slav, 6.Bd3	9	44.4%	55.6%	0.01 MB
D47	QGD semi-Slav, 7.Bc4	19	26.3%	55.3%	0.01 MB
D46	QGD semi-Slav, Bogolyubov variation	63	42.9%	53.2%	0.04 MB
D44	QGD semi-Slav, Botvinnik system (anti-Meran)	11	36.4%	45.5%	0.01 MB
D46	QGD semi-Slav, Chigorin defence	74	35.1%	56.8%	0.05 MB
D44	QGD semi-Slav, Ekstrom variation	9	33.3%	27.8%	0.01 MB
D48	QGD semi-Slav, Meran	8	0.0%	25.0%	0.01 MB
D47	QGD semi-Slav, Meran variation	162	42.6%	57.7%	0.11 MB
D48	QGD semi-Slav, Meran, 8...a6	210	37.6%	47.9%	0.15 MB
D49	QGD semi-Slav, Meran, Blumenfeld variation	88	38.6%	47.7%	0.06 MB
D48	QGD semi-Slav, Meran, Pirc variation	2	0.0%	50.0%	0.00 MB
D49	QGD semi-Slav, Meran, Rabinovich variation	28	32.1%	51.8%	0.02 MB
D49	QGD semi-Slav, Meran, Rellstab attack	10	50.0%	45.0%	0.01 MB
D48	QGD semi-Slav, Meran, Reynolds' variation	270	35.6%	54.8%	0.16 MB
D49	QGD semi-Slav, Meran, Sozin variation	70	35.7%	47.9%	0.04 MB
D49	QGD semi-Slav, Meran, Stahlberg variation	39	41.0%	41.0%	0.03 MB
D47	QGD semi-Slav, Meran, Wade variation	2889	34.5%	54.7%	1.69 MB
D48	QGD semi-Slav, Meran, old main line	73	39.7%	59.6%	0.05 MB
D46	QGD semi-Slav, Romih variation	86	36.0%	63.4%	0.06 MB
D45	QGD semi-Slav, Rubinstein (anti-Meran) system	10	20.0%	40.0%	0.01 MB
D45	QGD semi-Slav, Stoltz variation	3390	39.5%	52.2%	2.06 MB
D45	QGD semi-Slav, accelerated Meran (Alekhine variation)	82	30.5%	45.7%	0.06 MB
D44	QGD semi-Slav, anti-Meran gambit	198	33.8%	54.3%	0.11 MB
D44	QGD semi-Slav, anti-Meran, Lilienthal variation	58	31.0%	60.3%	0.03 MB
D44	QGD semi-Slav, anti-Meran, Szabo variation	8	12.5%	43.8%	0.01 MB
D47	QGD semi-Slav, neo-Meran (Lundin variation)	34	38.2%	66.2%	0.03 MB
D35	QGD, 3...Nf6	25	36.0%	54.0%	0.02 MB
D31	QGD, 3.Nc3	18	38.9%	63.9%	0.02 MB
D50	QGD, 4.Bg5	14	42.9%	50.0%	0.01 MB
D53	QGD, 4.Bg5 Be7	8	37.5%	43.8%	0.01 MB
D51	QGD, 4.Bg5 Nbd7	3	0.0%	66.7%	0.00 MB
D37	QGD, 4.Nf3	393	38.7%	51.7%	0.26 MB
D51	QGD, 5...c6	5	60.0%	50.0%	0.01 MB
D55	QGD, 6.Nf3	7	28.6%	57.1%	0.01 MB
D31	QGD, Alapin variation	2	50.0%	75.0%	0.00 MB
D08	QGD, Albin counter-gambit	3	33.3%	50.0%	0.00 MB
D09	QGD, Albin counter-gambit, 5.g3	4	25.0%	37.5%	0.01 MB
D50	QGD, Been-Koomen variation	1	0.0%	0.0%	0.00 MB
D52	QGD, Cambridge Springs defence, 7.cd	1	0.0%	0.0%	0.00 MB
D52	QGD, Cambridge Springs defence, Argentine variation	1	100.0%	50.0%	0.00 MB
D52	QGD, Cambridge Springs defence, Bogoljubow variation	68	47.1%	52.9%	0.05 MB
D52	QGD, Cambridge Springs defence, Rubinstein variation	14	57.1%	42.9%	0.01 MB
D52	QGD, Cambridge Springs defence, Yugoslav variation	50	44.0%	58.0%	0.04 MB
D30	QGD, Capablanca-Duras variation	22	36.4%	63.6%	0.02 MB
D31	QGD, Charousek (Petrosian) variation	54	33.3%	57.4%	0.05 MB
D07	QGD, Chigorin defence	301	35.2%	59.8%	0.19 MB
D07	QGD, Chigorin defence, Janowski variation	6	33.3%	66.7%	0.01 MB
D06	QGD, Grau (Sahovic) defence	5	40.0%	60.0%	0.00 MB
D30	QGD, Hastings variation	19	31.6%	57.9%	0.02 MB
D31	QGD, Janowski variation	3	66.7%	33.3%	0.00 MB
D56	QGD, Lasker defence	36	25.0%	51.4%	0.03 MB
D56	QGD, Lasker defence, Teichmann variation	8	37.5%	43.8%	0.01 MB
D06	QGD, Marshall defence	44	45.5%	61.4%	0.03 MB
D55	QGD, Neo-orthodox variation, 7.Bh4	17	52.9%	61.8%	0.02 MB
D55	QGD, Neo-orthodox variation, 7.Bxf6	6	33.3%	83.3%	0.01 MB
D60	QGD, Orthodox defence	9	44.4%	66.7%	0.01 MB
D63	QGD, Orthodox defence	3	33.3%	50.0%	0.00 MB
D62	QGD, Orthodox defence, 7.Qc2 c5, 8.cd (Rubinstein)	21	52.4%	69.0%	0.02 MB
D63	QGD, Orthodox defence, 7.Rc1	17	29.4%	61.8%	0.01 MB
D66	QGD, Orthodox defence, Bd3 line	41	41.5%	62.2%	0.03 MB
D67	QGD, Orthodox defence, Bd3 line	16	50.0%	50.0%	0.01 MB
D67	QGD, Orthodox defence, Bd3 line, 11.O-O	13	15.4%	69.2%	0.01 MB
D67	QGD, Orthodox defence, Bd3 line, Alekhine variation	24	50.0%	58.3%	0.02 MB
D60	QGD, Orthodox defence, Botvinnik variation	9	33.3%	61.1%	0.01 MB
D63	QGD, Orthodox defence, Pillsbury attack	1	0.0%	100.0%	0.00 MB
D64	QGD, Orthodox defence, Rubinstein attack (with Rc1)	19	57.9%	55.3%	0.02 MB
D64	QGD, Orthodox defence, Rubinstein attack, Gruenfeld variation	3	33.3%	50.0%	0.00 MB
D64	QGD, Orthodox defence, Rubinstein attack, Karlsbad variation	7	14.3%	50.0%	0.01 MB
D64	QGD, Orthodox defence, Rubinstein attack, Wolf variation	1	0.0%	0.0%	0.00 MB
D61	QGD, Orthodox defence, Rubinstein variation	29	48.3%	51.7%	0.03 MB
D63	QGD, Orthodox defence, Swiss (Henneberger) variation	18	44.4%	61.1%	0.01 MB
D63	QGD, Orthodox defence, Swiss, Karlsbad variation	35	40.0%	48.6%	0.03 MB
D68	QGD, Orthodox defence, classical variation	33	42.4%	57.6%	0.02 MB
D68	QGD, Orthodox defence, classical, 13.d1b1 (Maroczy)	2	50.0%	25.0%	0.00 MB
D68	QGD, Orthodox defence, classical, 13.d1c2 (Vidmar)	32	53.1%	57.8%	0.02 MB
D69	QGD, Orthodox defence, classical, 13.de	15	66.7%	40.0%	0.01 MB
D55	QGD, Petrosian variation	116	47.4%	54.7%	0.08 MB
D38	QGD, Ragozin variation	322	39.4%	55.4%	0.22 MB
D39	QGD, Ragozin, Vienna variation	535	47.3%	52.8%	0.30 MB
D40	QGD, Semi-Tarrasch defence	108	42.6%	50.9%	0.08 MB
D40	QGD, Semi-Tarrasch defence, Pillsbury variation	2	0.0%	50.0%	0.00 MB
D41	QGD, Semi-Tarrasch with e3	18	50.0%	52.8%	0.01 MB
D41	QGD, Semi-Tarrasch, 5.cd	75	42.7%	53.3%	0.05 MB
D42	QGD, Semi-Tarrasch, 7.Bd3	41	48.8%	58.5%	0.04 MB
D41	QGD, Semi-Tarrasch, Kmoch variation	1	100.0%	50.0%	0.00 MB
D50	QGD, Semi-Tarrasch, Primitive Pillsbury variation	2	0.0%	100.0%	0.00 MB
D41	QGD, Semi-Tarrasch, San Sebastian variation	6	16.7%	91.7%	0.00 MB
D32	QGD, Tarrasch defence	34	50.0%	57.4%	0.02 MB
D32	QGD, Tarrasch defence, 4.cd ed	2	100.0%	50.0%	0.00 MB
D32	QGD, Tarrasch defence, Marshall gambit	3	33.3%	50.0%	0.00 MB
D33	QGD, Tarrasch, Folkestone (Swedish) variation	5	40.0%	60.0%	0.00 MB
D33	QGD, Tarrasch, Prague variation	8	50.0%	37.5%	0.01 MB
D34	QGD, Tarrasch, Prague variation, 7...Be7	36	38.9%	55.6%	0.03 MB
D34	QGD, Tarrasch, Prague variation, 9.Bg5	56	44.6%	59.8%	0.04 MB
D34	QGD, Tarrasch, Prague variation, Normal position	57	43.9%	51.8%	0.05 MB
D34	QGD, Tarrasch, Reti variation	2	100.0%	50.0%	0.00 MB
D33	QGD, Tarrasch, Schlechter-Rubinstein system	4	25.0%	37.5%	0.00 MB
D33	QGD, Tarrasch, Wagner variation	2	50.0%	75.0%	0.00 MB
D32	QGD, Tarrasch, von Hennig-Schara gambit	2	0.0%	100.0%	0.00 MB
D58	QGD, Tartakower (Makagonov-Bondarevsky) system	2021	44.8%	52.8%	1.31 MB
D59	QGD, Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd5	26	42.3%	48.1%	0.02 MB
D59	QGD, Tartakower variation	25	28.0%	46.0%	0.02 MB
D30	QGD, Vienna variation	5	40.0%	60.0%	0.00 MB
D37	QGD, classical variation (5.Bf4)	634	41.6%	58.2%	0.40 MB
D35	QGD, exchange variation	17	35.3%	47.1%	0.02 MB
D35	QGD, exchange, Saemisch variation	19	42.1%	36.8%	0.02 MB
D35	QGD, exchange, positional line	78	38.5%	65.4%	0.06 MB
D35	QGD, exchange, positional line, 5...c6	30	33.3%	56.7%	0.02 MB
D36	QGD, exchange, positional line, 6.Qc2	10	40.0%	40.0%	0.01 MB
D31	QGD, semi-Slav	44	34.1%	55.7%	0.04 MB
D31	QGD, semi-Slav, Abrahams variation	18	50.0%	47.2%	0.02 MB
D31	QGD, semi-Slav, Marshall gambit	73	35.6%	53.4%	0.05 MB
D31	QGD, semi-Slav, Noteboom variation	10	30.0%	45.0%	0.01 MB
D06	QGD, symmetrical (Austrian) defence	1	0.0%	0.0%	0.00 MB
C40	QP counter-gambit (elephant gambit)	2	50.0%	75.0%	0.00 MB
A50	Queen's Indian accelerated	22	31.8%	52.3%	0.02 MB
A47	Queen's Indian defence	89	36.0%	59.6%	0.07 MB
E12	Queen's Indian defence	87	29.9%	52.9%	0.06 MB
E12	Queen's Indian, 4.Nc3	738	35.2%	51.8%	0.46 MB
E12	Queen's Indian, 4.Nc3, Botvinnik variation	3	33.3%	50.0%	0.00 MB
E13	Queen's Indian, 4.Nc3, main line	16	37.5%	62.5%	0.01 MB
E14	Queen's Indian, 4.e3	317	35.6%	55.0%	0.20 MB
E15	Queen's Indian, 4.g3	128	32.0%	57.4%	0.09 MB
E15	Queen's Indian, 4.g3 Bb7	24	29.2%	72.9%	0.02 MB
E17	Queen's Indian, 5.Bg2 Be7	7	57.1%	42.9%	0.01 MB
E14	Queen's Indian, Averbakh variation	1	0.0%	100.0%	0.00 MB
E15	Queen's Indian, Buerger variation	2	100.0%	50.0%	0.00 MB
E16	Queen's Indian, Capablanca variation	15	33.3%	43.3%	0.01 MB
E17	Queen's Indian, Euwe variation	4	25.0%	62.5%	0.01 MB
A47	Queen's Indian, Marienbad system	19	31.6%	57.9%	0.02 MB
A47	Queen's Indian, Marienbad system, Berg variation	3	33.3%	50.0%	0.00 MB
E12	Queen's Indian, Miles variation	39	30.8%	48.7%	0.03 MB
E15	Queen's Indian, Nimzovich variation (exaggerated fianchetto)	4560	35.5%	55.8%	2.79 MB
E17	Queen's Indian, Opovcensky variation	74	43.2%	54.1%	0.05 MB
E12	Queen's Indian, Petrosian system	1090	37.2%	52.7%	0.69 MB
E16	Queen's Indian, Riumin variation	15	53.3%	46.7%	0.01 MB
E15	Queen's Indian, Rubinstein variation	12	33.3%	41.7%	0.01 MB
E16	Queen's Indian, Yates variation	31	25.8%	61.3%	0.02 MB
E17	Queen's Indian, anti-Queen's Indian system	13	46.2%	53.8%	0.01 MB
E17	Queen's Indian, old main line, 6.O-O	47	36.2%	60.6%	0.04 MB
E18	Queen's Indian, old main line, 7.Nc3	149	43.6%	59.4%	0.10 MB
E19	Queen's Indian, old main line, 9.Qxc3	163	36.2%	59.2%	0.12 MB
A41	Queen's Pawn	64	31.3%	51.6%	0.05 MB
D02	Queen's bishop game	270	31.5%	50.6%	0.19 MB
D20	Queen's gambit accepted	172	37.8%	59.0%	0.12 MB
D23	Queen's gambit accepted	3	66.7%	33.3%	0.00 MB
D30	Queen's gambit declined	920	39.8%	54.3%	0.59 MB
A40	Queen's pawn	608	38.3%	56.0%	0.42 MB
A45	Queen's pawn game	409	38.6%	53.1%	0.28 MB
A46	Queen's pawn game	361	32.4%	56.4%	0.24 MB
A50	Queen's pawn game	103	29.1%	60.2%	0.07 MB
D00	Queen's pawn game	25	52.0%	54.0%	0.02 MB
D02	Queen's pawn game	1116	35.6%	52.6%	0.72 MB
D04	Queen's pawn game	106	35.8%	49.1%	0.08 MB
D05	Queen's pawn game	76	35.5%	53.3%	0.05 MB
E00	Queen's pawn game	126	37.3%	53.6%	0.10 MB
E10	Queen's pawn game	664	39.8%	58.9%	0.43 MB
D02	Queen's pawn game, Chigorin variation	40	47.5%	48.8%	0.04 MB
D02	Queen's pawn game, Krause variation	21	33.3%	59.5%	0.02 MB
D05	Queen's pawn game, Rubinstein (Colle-Zukertort) variation	22	54.5%	50.0%	0.02 MB
D05	Queen's pawn game, Zukertort variation	4	25.0%	62.5%	0.01 MB
A40	Queen's pawn, Charlick (Englund) gambit	1	100.0%	50.0%	0.00 MB
D00	Queen's pawn, Chigorin variation	11	54.5%	63.6%	0.01 MB
A40	Queen's pawn, English defence	16	25.0%	68.8%	0.01 MB
A40	Queen's pawn, Franco-Indian (Keres) defence	92	40.2%	54.9%	0.07 MB
A40	Queen's pawn, Keres defence	157	36.3%	58.3%	0.11 MB
A40	Queen's pawn, Lundin (Kevitz-Mikenas) defence	16	12.5%	62.5%	0.01 MB
D00	Queen's pawn, Mason variation	199	38.7%	53.0%	0.13 MB
D00	Queen's pawn, Mason variation, Steinitz counter-gambit	8	62.5%	68.8%	0.01 MB
E60	Queen's pawn, Mengarini attack	11	9.1%	86.4%	0.02 MB
A46	Queen's pawn, Torre attack	56	41.1%	49.1%	0.04 MB
A46	Queen's pawn, Torre attack, Wagner gambit	1	0.0%	100.0%	0.00 MB
A46	Queen's pawn, Yusupov-Rubinstein system	44	38.6%	62.5%	0.04 MB
D00	Queen's pawn, stonewall attack	4	0.0%	75.0%	0.00 MB
A09	Reti accepted	33	48.5%	48.5%	0.03 MB
A09	Reti accepted, Keres variation	9	22.2%	77.8%	0.01 MB
A04	Reti opening	1073	36.9%	53.7%	0.72 MB
A05	Reti opening	582	38.0%	55.8%	0.39 MB
A06	Reti opening	216	38.0%	50.9%	0.15 MB
A09	Reti opening	22	45.5%	54.5%	0.02 MB
A04	Reti v Dutch	60	25.0%	60.8%	0.05 MB
A05	Reti, King's Indian attack	84	47.6%	51.2%	0.06 MB
A07	Reti, King's Indian attack	67	32.8%	46.3%	0.05 MB
A08	Reti, King's Indian attack	61	34.4%	54.9%	0.05 MB
A07	Reti, King's Indian attack (Barcza system)	601	41.3%	54.7%	0.43 MB
A07	Reti, King's Indian attack (with ...c5)	54	44.4%	51.9%	0.04 MB
A08	Reti, King's Indian attack, French variation	13	23.1%	42.3%	0.01 MB
A07	Reti, King's Indian attack, Keres variation	47	44.7%	43.6%	0.04 MB
A07	Reti, King's Indian attack, Pachman system	7	28.6%	57.1%	0.01 MB
A05	Reti, King's Indian attack, Reti-Smyslov variation	11	45.5%	50.0%	0.01 MB
A05	Reti, King's Indian attack, Spassky's variation	49	32.7%	53.1%	0.04 MB
A07	Reti, King's Indian attack, Yugoslav variation	220	36.8%	47.5%	0.16 MB
A04	Reti, Lisitsin gambit deferred	2	50.0%	25.0%	0.00 MB
A06	Reti, Nimzovich-Larsen attack	184	33.2%	47.6%	0.13 MB
A04	Reti, Pirc-Lisitsin gambit	12	41.7%	70.8%	0.01 MB
A09	Reti, advance variation	73	43.8%	47.9%	0.06 MB
A06	Reti, old Indian attack	21	33.3%	40.5%	0.02 MB
B00	Reversed Grob (Borg/Basman defence/macho Grob)	4	25.0%	87.5%	0.00 MB
D01	Richter-Veresov attack	47	21.3%	38.3%	0.03 MB
D01	Richter-Veresov attack, Richter variation	3	66.7%	66.7%	0.00 MB
D01	Richter-Veresov attack, Veresov variation	3	33.3%	50.0%	0.00 MB
B06	Robatsch (modern) defence	193	28.5%	57.8%	0.14 MB
B06	Robatsch defence	27	37.0%	51.9%	0.02 MB
B07	Robatsch defence, Geller's system	36	33.3%	63.9%	0.03 MB
B06	Robatsch defence, Gurgenidze variation	3	0.0%	66.7%	0.00 MB
B06	Robatsch defence, Pseudo-Austrian attack	22	18.2%	72.7%	0.02 MB
A41	Robatsch defence, Rossolimo variation	8	37.5%	56.3%	0.01 MB
B06	Robatsch defence, Two knights variation	4	0.0%	75.0%	0.00 MB
B06	Robatsch defence, Two knights, Suttles variation	48	37.5%	56.3%	0.04 MB
B06	Robatsch defence, three pawns attack	1	100.0%	50.0%	0.00 MB
C70	Ruy Lopez	2	0.0%	50.0%	0.00 MB
C60	Ruy Lopez (Spanish opening)	2	0.0%	0.0%	0.00 MB
C78	Ruy Lopez, ...b5 & ...d6	7	14.3%	50.0%	0.01 MB
C78	Ruy Lopez, 5.O-O	90	37.8%	63.3%	0.06 MB
C70	Ruy Lopez, Alapin's defence deferred	15	33.3%	76.7%	0.01 MB
C77	Ruy Lopez, Anderssen variation	50	42.0%	59.0%	0.04 MB
C78	Ruy Lopez, Archangelsk (counterthrust) variation	123	39.0%	51.2%	0.09 MB
C65	Ruy Lopez, Berlin defence	79	34.2%	51.3%	0.07 MB
C65	Ruy Lopez, Berlin defence, 4.O-O	8	37.5%	43.8%	0.01 MB
C66	Ruy Lopez, Berlin defence, 4.O-O, d6	12	25.0%	37.5%	0.01 MB
C65	Ruy Lopez, Berlin defence, Beverwijk variation	48	22.9%	63.5%	0.04 MB
C67	Ruy Lopez, Berlin defence, Cordel variation	3	0.0%	66.7%	0.00 MB
C65	Ruy Lopez, Berlin defence, Duras variation	2	0.0%	50.0%	0.00 MB
C65	Ruy Lopez, Berlin defence, Kaufmann variation	2	50.0%	75.0%	0.00 MB
C67	Ruy Lopez, Berlin defence, Minckwitz variation	3	0.0%	66.7%	0.00 MB
C65	Ruy Lopez, Berlin defence, Nyholm attack	10	50.0%	55.0%	0.01 MB
C67	Ruy Lopez, Berlin defence, Pillsbury variation	1	0.0%	0.0%	0.00 MB
C67	Ruy Lopez, Berlin defence, Winawer attack	6	33.3%	83.3%	0.00 MB
C66	Ruy Lopez, Berlin defence, hedgehog variation	66	53.0%	61.4%	0.05 MB
C67	Ruy Lopez, Berlin defence, open variation	449	42.8%	55.2%	0.29 MB
C61	Ruy Lopez, Bird's defence	6	0.0%	66.7%	0.00 MB
C70	Ruy Lopez, Caro variation	18	33.3%	55.6%	0.02 MB
C70	Ruy Lopez, Classical defence deferred	58	48.3%	55.2%	0.05 MB
C60	Ruy Lopez, Cozio defence	6	16.7%	91.7%	0.01 MB
C60	Ruy Lopez, Cozio defence, Paulsen variation	2	0.0%	50.0%	0.00 MB
C85	Ruy Lopez, Exchange variation doubly deferred (DERLD)	325	36.6%	49.4%	0.22 MB
C70	Ruy Lopez, Graz variation	4	100.0%	50.0%	0.00 MB
C89	Ruy Lopez, Marshall counter-attack	29	34.5%	55.2%	0.02 MB
C89	Ruy Lopez, Marshall counter-attack, 11...c6	22	27.3%	50.0%	0.02 MB
C89	Ruy Lopez, Marshall, Kevitz variation	1	100.0%	50.0%	0.00 MB
C89	Ruy Lopez, Marshall, main line, 12.d2d4	24	45.8%	43.8%	0.02 MB
C89	Ruy Lopez, Marshall, main line, 14...Qh3	37	16.2%	62.2%	0.03 MB
C78	Ruy Lopez, Moeller defence	126	34.9%	54.8%	0.08 MB
C77	Ruy Lopez, Morphy defence	80	35.0%	60.0%	0.06 MB
C77	Ruy Lopez, Morphy defence, Duras variation	2	0.0%	100.0%	0.00 MB
C63	Ruy Lopez, Schliemann defence	3	0.0%	66.7%	0.00 MB
C63	Ruy Lopez, Schliemann defence, Berger variation	20	30.0%	60.0%	0.02 MB
C74	Ruy Lopez, Siesta, Kopayev variation	12	25.0%	54.2%	0.01 MB
C79	Ruy Lopez, Steinitz defence deferred (Russian defence)	71	28.2%	56.3%	0.05 MB
C79	Ruy Lopez, Steinitz defence deferred, Lipnitsky variation	8	62.5%	56.3%	0.01 MB
C79	Ruy Lopez, Steinitz defence deferred, Rubinstein variation	1	100.0%	50.0%	0.00 MB
C70	Ruy Lopez, Taimanov (chase/wing/accelerated counterthrust) variation	65	26.2%	68.5%	0.05 MB
C88	Ruy Lopez, Trajkovic counter-attack	5	40.0%	60.0%	0.01 MB
C77	Ruy Lopez, Treybal (Bayreuth) variation (exchange var. deferred)	13	46.2%	53.8%	0.02 MB
C77	Ruy Lopez, Wormald (Alapin) attack	30	23.3%	55.0%	0.03 MB
C86	Ruy Lopez, Worrall attack	6	66.7%	50.0%	0.01 MB
C86	Ruy Lopez, Worrall attack, sharp line	31	41.9%	53.2%	0.03 MB
C86	Ruy Lopez, Worrall attack, solid line	8	62.5%	43.8%	0.01 MB
C64	Ruy Lopez, classical (Cordel) defence	43	27.9%	48.8%	0.03 MB
C64	Ruy Lopez, classical defence, 4.c3	19	31.6%	63.2%	0.02 MB
C64	Ruy Lopez, classical defence, Benelux variation	114	36.8%	58.8%	0.08 MB
C64	Ruy Lopez, classical defence, Charousek variation	2	50.0%	75.0%	0.00 MB
C88	Ruy Lopez, closed	179	36.9%	55.9%	0.11 MB
C96	Ruy Lopez, closed (10...c5)	156	38.5%	55.1%	0.12 MB
C96	Ruy Lopez, closed (8...Na5)	8	50.0%	62.5%	0.01 MB
C90	Ruy Lopez, closed (with ...d6)	358	31.3%	47.2%	0.23 MB
C66	Ruy Lopez, closed Berlin defence, Bernstein variation	7	14.3%	35.7%	0.01 MB
C66	Ruy Lopez, closed Berlin defence, Showalter variation	32	53.1%	60.9%	0.02 MB
C66	Ruy Lopez, closed Berlin defence, Wolf variation	30	60.0%	60.0%	0.02 MB
C84	Ruy Lopez, closed defence	385	37.1%	54.9%	0.25 MB
C88	Ruy Lopez, closed, 7...O-O	370	36.2%	55.1%	0.23 MB
C88	Ruy Lopez, closed, 8.c3	2	0.0%	0.0%	0.00 MB
C91	Ruy Lopez, closed, 9.d4	261	30.3%	58.8%	0.17 MB
C92	Ruy Lopez, closed, 9.h3	68	41.2%	52.9%	0.05 MB
C87	Ruy Lopez, closed, Averbach variation	57	36.8%	58.8%	0.04 MB
C88	Ruy Lopez, closed, Balla variation	8	37.5%	56.3%	0.01 MB
C84	Ruy Lopez, closed, Basque gambit (North Spanish variation)	2	50.0%	25.0%	0.00 MB
C91	Ruy Lopez, closed, Bogolyubov variation	965	37.3%	53.1%	0.64 MB
C96	Ruy Lopez, closed, Borisenko defence	11	36.4%	45.5%	0.01 MB
C94	Ruy Lopez, closed, Breyer defence	2	50.0%	25.0%	0.00 MB
C95	Ruy Lopez, closed, Breyer, Borisenko variation	304	35.2%	55.8%	0.22 MB
C95	Ruy Lopez, closed, Breyer, Gligoric variation	17	29.4%	61.8%	0.02 MB
C95	Ruy Lopez, closed, Breyer, Simagin variation	5	60.0%	70.0%	0.00 MB
C97	Ruy Lopez, closed, Chigorin defence	276	29.0%	63.8%	0.18 MB
C98	Ruy Lopez, closed, Chigorin, 12...Nc6	71	32.4%	58.5%	0.06 MB
C99	Ruy Lopez, closed, Chigorin, 12...c5d4	484	43.4%	62.4%	0.31 MB
C92	Ruy Lopez, closed, Flohr-Zaitsev system (Lenzerheide variation)	813	37.6%	55.4%	0.52 MB
C96	Ruy Lopez, closed, Keres (...Nd7) defence	52	23.1%	67.3%	0.04 MB
C92	Ruy Lopez, closed, Keres (9...a5) variation	3	66.7%	33.3%	0.00 MB
C92	Ruy Lopez, closed, Kholmov variation	29	27.6%	55.2%	0.02 MB
C90	Ruy Lopez, closed, Lutikov variation	5	60.0%	50.0%	0.01 MB
C90	Ruy Lopez, closed, Pilnik variation	157	37.6%	46.2%	0.12 MB
C92	Ruy Lopez, closed, Ragozin-Petrosian (`Keres') variation	50	42.0%	61.0%	0.04 MB
C93	Ruy Lopez, closed, Smyslov defence	17	29.4%	50.0%	0.02 MB
C90	Ruy Lopez, closed, Suetin variation	6	16.7%	58.3%	0.01 MB
C88	Ruy Lopez, closed, anti-Marshall 8.a4	216	32.9%	51.2%	0.14 MB
C84	Ruy Lopez, closed, centre attack	9	55.6%	50.0%	0.01 MB
C68	Ruy Lopez, exchange variation	17	47.1%	52.9%	0.01 MB
C69	Ruy Lopez, exchange variation, 5.O-O	29	34.5%	51.7%	0.02 MB
C69	Ruy Lopez, exchange variation, Alapin gambit	12	8.3%	45.8%	0.01 MB
C68	Ruy Lopez, exchange, Alekhine variation	3	33.3%	16.7%	0.00 MB
C69	Ruy Lopez, exchange, Bronstein variation	53	24.5%	50.0%	0.04 MB
C69	Ruy Lopez, exchange, Gligoric variation	51	35.3%	64.7%	0.04 MB
C68	Ruy Lopez, exchange, Keres variation	6	66.7%	33.3%	0.00 MB
C68	Ruy Lopez, exchange, Romanovsky variation	3	33.3%	83.3%	0.00 MB
C60	Ruy Lopez, fianchetto (Smyslov/Barnes) defence	18	38.9%	69.4%	0.01 MB
C77	Ruy Lopez, four knights (Tarrasch) variation	20	20.0%	50.0%	0.02 MB
C71	Ruy Lopez, modern Steinitz defence	18	33.3%	61.1%	0.02 MB
C74	Ruy Lopez, modern Steinitz defence	8	37.5%	81.3%	0.01 MB
C75	Ruy Lopez, modern Steinitz defence	13	38.5%	50.0%	0.01 MB
C72	Ruy Lopez, modern Steinitz defence, 5.O-O	43	34.9%	59.3%	0.03 MB
C73	Ruy Lopez, modern Steinitz defence, Alapin variation	6	16.7%	58.3%	0.01 MB
C71	Ruy Lopez, modern Steinitz defence, Duras (Keres) variation	21	23.8%	50.0%	0.02 MB
C73	Ruy Lopez, modern Steinitz defence, Richter variation	22	40.9%	56.8%	0.02 MB
C75	Ruy Lopez, modern Steinitz defence, Rubinstein variation	9	11.1%	72.2%	0.01 MB
C71	Ruy Lopez, modern Steinitz defence, Three knights variation	7	42.9%	64.3%	0.01 MB
C76	Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation	52	34.6%	51.9%	0.04 MB
C74	Ruy Lopez, modern Steinitz defence, siesta variation	1	0.0%	100.0%	0.00 MB
C62	Ruy Lopez, old Steinitz defence	94	35.1%	58.0%	0.08 MB
C62	Ruy Lopez, old Steinitz defence, Nimzovich attack	3	0.0%	33.3%	0.00 MB
C80	Ruy Lopez, open (Tarrasch) defence	9	33.3%	72.2%	0.01 MB
C67	Ruy Lopez, open Berlin defence, 5...Be7	7	28.6%	42.9%	0.01 MB
C67	Ruy Lopez, open Berlin defence, l'Hermet variation	2	0.0%	0.0%	0.00 MB
C80	Ruy Lopez, open, 6.d4	4	75.0%	62.5%	0.00 MB
C80	Ruy Lopez, open, 7.Bb3	10	50.0%	55.0%	0.01 MB
C80	Ruy Lopez, open, 8...Be6	94	34.0%	51.1%	0.06 MB
C83	Ruy Lopez, open, 9...Be7, 10.Re1	7	42.9%	78.6%	0.01 MB
C80	Ruy Lopez, open, Berger variation	2	100.0%	50.0%	0.00 MB
C80	Ruy Lopez, open, Bernstein variation	50	36.0%	66.0%	0.03 MB
C80	Ruy Lopez, open, Bernstein variation, Karpov gambit	2	0.0%	0.0%	0.00 MB
C82	Ruy Lopez, open, Dilworth variation	5	40.0%	20.0%	0.01 MB
C80	Ruy Lopez, open, Friess attack	6	16.7%	41.7%	0.00 MB
C80	Ruy Lopez, open, Harksen gambit	1	0.0%	100.0%	0.00 MB
C81	Ruy Lopez, open, Howell attack	3	33.3%	83.3%	0.00 MB
C82	Ruy Lopez, open, Italian variation	2	0.0%	100.0%	0.00 MB
C83	Ruy Lopez, open, Malkin variation	4	75.0%	62.5%	0.00 MB
C82	Ruy Lopez, open, Motzko attack	3	66.7%	66.7%	0.00 MB
C80	Ruy Lopez, open, Riga variation	3	100.0%	50.0%	0.00 MB
C80	Ruy Lopez, open, Schlechter defence	1	100.0%	50.0%	0.00 MB
C82	Ruy Lopez, open, St. Petersburg variation	10	10.0%	55.0%	0.01 MB
C80	Ruy Lopez, open, Tartakower variation	2	0.0%	50.0%	0.00 MB
C80	Ruy Lopez, open, Zukertort variation	1	0.0%	100.0%	0.00 MB
C83	Ruy Lopez, open, classical defence	22	45.5%	45.5%	0.02 MB
A06	Santasiere's folly	13	23.1%	50.0%	0.01 MB
A00	Saragossa opening	8	62.5%	68.8%	0.01 MB
B01	Scandinavian (centre counter) defence	87	40.2%	56.9%	0.06 MB
B01	Scandinavian defence	37	32.4%	54.1%	0.03 MB
B01	Scandinavian defence, Gruenfeld variation	2	0.0%	50.0%	0.00 MB
B01	Scandinavian defence, Lasker variation	13	38.5%	65.4%	0.01 MB
B01	Scandinavian gambit	15	53.3%	60.0%	0.02 MB
B01	Scandinavian, Anderssen counter-attack orthodox attack	1	0.0%	100.0%	0.00 MB
B01	Scandinavian, Anderssen counter-attack, Collijn variation	1	0.0%	100.0%	0.00 MB
B01	Scandinavian, Icelandic gambit	10	50.0%	55.0%	0.01 MB
B01	Scandinavian, Marshall variation	83	41.0%	63.9%	0.05 MB
B01	Scandinavian, Pytel-Wade variation	21	52.4%	54.8%	0.02 MB
C44	Scotch gambit	12	41.7%	45.8%	0.01 MB
C44	Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack	1	0.0%	0.0%	0.00 MB
C44	Scotch gambit, Benima defence	1	100.0%	50.0%	0.00 MB
C44	Scotch gambit, Dubois-Reti defence	45	40.0%	46.7%	0.03 MB
C45	Scotch game	449	41.0%	54.1%	0.29 MB
C45	Scotch, Blackburne attack	1	0.0%	0.0%	0.00 MB
C45	Scotch, Blumenfeld attack	4	50.0%	25.0%	0.00 MB
C45	Scotch, Ghulam Kassim variation	2	100.0%	50.0%	0.00 MB
C44	Scotch, Goering gambit	8	37.5%	43.8%	0.01 MB
C45	Scotch, Horwitz attack	12	25.0%	70.8%	0.01 MB
C44	Scotch, Lolli variation	11	45.5%	50.0%	0.01 MB
C45	Scotch, Meitner variation	1	100.0%	50.0%	0.00 MB
C45	Scotch, Mieses variation	251	29.9%	54.8%	0.14 MB
C45	Scotch, Potter variation	8	37.5%	68.8%	0.01 MB
C44	Scotch, Relfsson gambit ('MacLopez')	2	0.0%	100.0%	0.00 MB
C45	Scotch, Romanishin variation	3	33.3%	83.3%	0.00 MB
C45	Scotch, Schmidt variation	118	61.9%	43.6%	0.08 MB
C45	Scotch, Steinitz variation	2	0.0%	50.0%	0.00 MB
C45	Scotch, Tartakower variation	2	50.0%	25.0%	0.00 MB
A44	Semi-Benoni (`blockade variation')	2	50.0%	75.0%	0.00 MB
B50	Sicilian	350	33.1%	54.6%	0.25 MB
B54	Sicilian	197	34.5%	54.8%	0.15 MB
B56	Sicilian	290	32.8%	54.0%	0.19 MB
B20	Sicilian defence	312	34.3%	49.2%	0.20 MB
B27	Sicilian defence	2	50.0%	75.0%	0.00 MB
B30	Sicilian defence	304	38.5%	50.5%	0.23 MB
B32	Sicilian defence	100	25.0%	58.5%	0.07 MB
B33	Sicilian defence	93	34.4%	50.5%	0.07 MB
B40	Sicilian defence	716	33.2%	54.7%	0.49 MB
B44	Sicilian defence	117	35.9%	49.6%	0.08 MB
B22	Sicilian, 2.c3, Heidenfeld variation	2	50.0%	75.0%	0.00 MB
B22	Sicilian, Alapin's variation (2.c3)	715	38.5%	53.6%	0.48 MB
B40	Sicilian, Anderssen variation	117	36.8%	56.0%	0.08 MB
B58	Sicilian, Boleslavsky variation	77	45.5%	44.8%	0.06 MB
B59	Sicilian, Boleslavsky variation, 7.Nb3	11	18.2%	54.5%	0.01 MB
B58	Sicilian, Boleslavsky, Louma variation	1	0.0%	100.0%	0.00 MB
B51	Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack	153	42.5%	54.6%	0.11 MB
B52	Sicilian, Canal-Sokolsky attack, 3...Bd7	90	53.3%	54.4%	0.07 MB
B52	Sicilian, Canal-Sokolsky attack, Bronstein gambit	21	42.9%	64.3%	0.02 MB
B52	Sicilian, Canal-Sokolsky attack, Sokolsky variation	72	41.7%	56.9%	0.05 MB
B53	Sicilian, Chekhover variation	78	34.6%	51.9%	0.05 MB
B53	Sicilian, Chekhover, Zaitsev variation	3	0.0%	66.7%	0.00 MB
B32	Sicilian, Flohr variation	13	30.8%	61.5%	0.01 MB
B21	Sicilian, Grand Prix attack	172	36.0%	51.7%	0.11 MB
B23	Sicilian, Grand Prix attack	55	29.1%	50.9%	0.04 MB
B23	Sicilian, Grand Prix attack, Schofman variation	4	50.0%	50.0%	0.00 MB
B27	Sicilian, Hungarian variation	158	34.2%	57.0%	0.11 MB
B41	Sicilian, Kan variation	18	27.8%	58.3%	0.02 MB
B42	Sicilian, Kan, 5.Bd3	305	35.4%	58.4%	0.20 MB
B43	Sicilian, Kan, 5.Nc3	294	37.8%	56.6%	0.20 MB
B42	Sicilian, Kan, Gipslis variation	19	26.3%	65.8%	0.01 MB
B41	Sicilian, Kan, Maroczy bind (Reti variation)	41	29.3%	51.2%	0.04 MB
B41	Sicilian, Kan, Maroczy bind - Bronstein variation	2	50.0%	25.0%	0.00 MB
B42	Sicilian, Kan, Polugaievsky variation	176	35.8%	54.8%	0.13 MB
B42	Sicilian, Kan, Swiss cheese variation	21	38.1%	61.9%	0.02 MB
B27	Sicilian, Katalimov variation	4	75.0%	37.5%	0.00 MB
B20	Sicilian, Keres variation (2.Ne2)	43	41.9%	58.1%	0.03 MB
B32	Sicilian, Labourdonnais-Loewenthal (Kalashnikov) variation	71	38.0%	59.9%	0.06 MB
B32	Sicilian, Labourdonnais-Loewenthal variation	20	50.0%	65.0%	0.02 MB
B57	Sicilian, Magnus Smith trap	4	50.0%	25.0%	0.00 MB
B40	Sicilian, Marshall variation	1	0.0%	100.0%	0.00 MB
B90	Sicilian, Najdorf	356	32.3%	52.4%	0.22 MB
B98	Sicilian, Najdorf variation	34	26.5%	66.2%	0.02 MB
B95	Sicilian, Najdorf, 6...e6	53	26.4%	32.1%	0.04 MB
B94	Sicilian, Najdorf, 6.Bg5	28	21.4%	57.1%	0.02 MB
B93	Sicilian, Najdorf, 6.f4	237	42.6%	51.3%	0.16 MB
B98	Sicilian, Najdorf, 7...Be7	28	39.3%	51.8%	0.02 MB
B99	Sicilian, Najdorf, 7...Be7 main line	143	18.2%	52.4%	0.08 MB
B97	Sicilian, Najdorf, 7...Qb6	231	22.9%	44.8%	0.14 MB
B96	Sicilian, Najdorf, 7.f4	71	31.0%	50.7%	0.05 MB
B90	Sicilian, Najdorf, Adams attack	12	58.3%	62.5%	0.01 MB
B98	Sicilian, Najdorf, Browne variation	11	18.2%	81.8%	0.01 MB
B90	Sicilian, Najdorf, Byrne (English) attack	4210	29.8%	53.1%	2.29 MB
B98	Sicilian, Najdorf, Goteborg (Argentine) variation	1	0.0%	0.0%	0.00 MB
B90	Sicilian, Najdorf, Lipnitzky attack	134	31.3%	50.7%	0.09 MB
B92	Sicilian, Najdorf, Opovcensky variation	740	37.2%	49.3%	0.48 MB
B97	Sicilian, Najdorf, Poisoned pawn variation	373	44.0%	49.3%	0.19 MB
B96	Sicilian, Najdorf, Polugayevsky variation	7	57.1%	28.6%	0.01 MB
B96	Sicilian, Najdorf, Polugayevsky, Simagin variation	4	50.0%	25.0%	0.00 MB
B91	Sicilian, Najdorf, Zagreb (fianchetto) variation	49	32.7%	53.1%	0.04 MB
B32	Sicilian, Nimzovich variation	3	0.0%	33.3%	0.00 MB
B31	Sicilian, Nimzovich-Rossolimo attack (with ...g6, without ...d6)	315	36.2%	55.9%	0.22 MB
B30	Sicilian, Nimzovich-Rossolimo attack (without ...d6)	378	35.2%	53.3%	0.26 MB
B31	Sicilian, Nimzovich-Rossolimo attack, Gurgenidze variation	1	100.0%	50.0%	0.00 MB
B29	Sicilian, Nimzovich-Rubinstein variation	12	33.3%	66.7%	0.01 MB
B29	Sicilian, Nimzovich-Rubinstein; Rubinstein counter-gambit	12	16.7%	41.7%	0.01 MB
B28	Sicilian, O'Kelly variation	11	54.5%	63.6%	0.01 MB
B33	Sicilian, Pelikan (Lasker/Sveshnikov) variation	94	24.5%	52.7%	0.07 MB
B33	Sicilian, Pelikan, Bird variation	34	35.3%	58.8%	0.02 MB
B33	Sicilian, Pelikan, Chelyabinsk variation	600	29.7%	60.8%	0.35 MB
B40	Sicilian, Pin variation (Sicilian counter-attack)	1	0.0%	100.0%	0.00 MB
B40	Sicilian, Pin, Koch variation	4	25.0%	87.5%	0.00 MB
B54	Sicilian, Prins (Moscow) variation	63	36.5%	57.9%	0.05 MB
B55	Sicilian, Prins variation, Venice attack	5	60.0%	70.0%	0.01 MB
B27	Sicilian, Quinteros variation	4	25.0%	87.5%	0.00 MB
B60	Sicilian, Richter-Rauzer	48	37.5%	68.8%	0.03 MB
B62	Sicilian, Richter-Rauzer, 6...e6	20	30.0%	55.0%	0.02 MB
B60	Sicilian, Richter-Rauzer, Bondarevsky variation	3	0.0%	33.3%	0.00 MB
B62	Sicilian, Richter-Rauzer, Keres variation	14	14.3%	50.0%	0.01 MB
B60	Sicilian, Richter-Rauzer, Larsen variation	18	16.7%	58.3%	0.01 MB
B61	Sicilian, Richter-Rauzer, Larsen variation, 7.Qd2	43	34.9%	54.7%	0.03 MB
B62	Sicilian, Richter-Rauzer, Margate (Alekhine) variation	11	18.2%	36.4%	0.01 MB
B62	Sicilian, Richter-Rauzer, Podvebrady variation	10	70.0%	45.0%	0.01 MB
B63	Sicilian, Richter-Rauzer, Rauzer attack	27	22.2%	66.7%	0.02 MB
B63	Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7	217	33.6%	54.6%	0.14 MB
B65	Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4	159	38.4%	56.9%	0.10 MB
B64	Sicilian, Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f4	92	41.3%	48.9%	0.06 MB
B66	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6	2735	31.6%	51.1%	1.52 MB
B69	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf6	48	29.2%	64.6%	0.03 MB
B67	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7	778	29.7%	54.0%	0.46 MB
B68	Sicilian, Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be7	27	29.6%	66.7%	0.02 MB
B64	Sicilian, Richter-Rauzer, Rauzer attack, Geller variation	1	100.0%	50.0%	0.00 MB
B84	Sicilian, Scheveningen (Paulsen), classical variation	1190	36.1%	49.7%	0.73 MB
B80	Sicilian, Scheveningen variation	306	27.8%	54.4%	0.19 MB
B83	Sicilian, Scheveningen, 6.Be2	189	38.1%	47.6%	0.13 MB
B82	Sicilian, Scheveningen, 6.f4	75	33.3%	58.0%	0.06 MB
B80	Sicilian, Scheveningen, English variation	52	25.0%	54.8%	0.03 MB
B81	Sicilian, Scheveningen, Keres attack	444	32.0%	61.5%	0.26 MB
B82	Sicilian, Scheveningen, Tal variation	7	28.6%	57.1%	0.01 MB
B80	Sicilian, Scheveningen, Vitolins variation	2	50.0%	25.0%	0.00 MB
B85	Sicilian, Scheveningen, classical	31	48.4%	56.5%	0.03 MB
B85	Sicilian, Scheveningen, classical main line	120	43.3%	55.0%	0.08 MB
B85	Sicilian, Scheveningen, classical, Maroczy system	11	27.3%	59.1%	0.01 MB
B84	Sicilian, Scheveningen, classical, Nd7 system	13	30.8%	61.5%	0.01 MB
B80	Sicilian, Scheveningen, fianchetto variation	40	45.0%	45.0%	0.03 MB
B21	Sicilian, Smith-Morra gambit	19	52.6%	57.9%	0.02 MB
B86	Sicilian, Sozin attack	11	45.5%	40.9%	0.01 MB
B87	Sicilian, Sozin with ...a6 and ...b5	152	37.5%	54.3%	0.10 MB
B89	Sicilian, Sozin, 7.Be3	251	31.1%	50.2%	0.16 MB
B57	Sicilian, Sozin, Benko variation	255	41.6%	50.6%	0.18 MB
B88	Sicilian, Sozin, Leonhardt variation	58	27.6%	56.9%	0.04 MB
B57	Sicilian, Sozin, not Scheveningen	22	50.0%	61.4%	0.02 MB
B20	Sicilian, Steinitz variation	124	45.2%	46.8%	0.09 MB
B33	Sicilian, Sveshnikov variation	275	37.5%	51.8%	0.16 MB
B44	Sicilian, Szen (`anti-Taimanov') variation	97	42.3%	49.0%	0.07 MB
B44	Sicilian, Szen variation, Dely-Kasparov gambit	2	50.0%	75.0%	0.00 MB
B44	Sicilian, Szen, hedgehog variation	59	37.3%	61.0%	0.04 MB
B47	Sicilian, Taimanov (Bastrikov) variation	1113	36.8%	54.8%	0.70 MB
B45	Sicilian, Taimanov variation	502	35.5%	57.4%	0.31 MB
B46	Sicilian, Taimanov variation	768	37.1%	55.3%	0.47 MB
B48	Sicilian, Taimanov variation	637	36.3%	52.0%	0.40 MB
B49	Sicilian, Taimanov variation	159	37.1%	56.9%	0.11 MB
B45	Sicilian, Taimanov, American attack	5	20.0%	30.0%	0.00 MB
B89	Sicilian, Velimirovic attack	145	27.6%	48.3%	0.09 MB
B56	Sicilian, Venice attack	20	55.0%	47.5%	0.01 MB
B39	Sicilian, accelerated fianchetto, Breyer variation	26	46.2%	50.0%	0.02 MB
B36	Sicilian, accelerated fianchetto, Gurgenidze variation	36	25.0%	70.8%	0.03 MB
B36	Sicilian, accelerated fianchetto, Maroczy bind	73	47.9%	52.7%	0.05 MB
B37	Sicilian, accelerated fianchetto, Maroczy bind, 5...Bg7	10	60.0%	50.0%	0.01 MB
B38	Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3	88	35.2%	59.7%	0.06 MB
B34	Sicilian, accelerated fianchetto, exchange variation	1	0.0%	100.0%	0.00 MB
B34	Sicilian, accelerated fianchetto, modern variation	38	39.5%	48.7%	0.03 MB
B35	Sicilian, accelerated fianchetto, modern variation with Bc4	114	42.1%	50.9%	0.08 MB
B23	Sicilian, chameleon variation	43	39.5%	61.6%	0.03 MB
B58	Sicilian, classical	22	54.5%	50.0%	0.02 MB
B23	Sicilian, closed	398	32.2%	52.8%	0.26 MB
B24	Sicilian, closed	40	37.5%	48.8%	0.03 MB
B25	Sicilian, closed	20	35.0%	67.5%	0.02 MB
B23	Sicilian, closed, 2...Nc6	130	39.2%	53.5%	0.09 MB
B26	Sicilian, closed, 6.Be3	49	32.7%	42.9%	0.03 MB
B25	Sicilian, closed, 6.Ne2 e5 (Botvinnik)	8	50.0%	50.0%	0.01 MB
B25	Sicilian, closed, 6.f4	35	28.6%	48.6%	0.03 MB
B25	Sicilian, closed, 6.f4 e5 (Botvinnik)	4	50.0%	75.0%	0.01 MB
B23	Sicilian, closed, Korchnoi variation	5	40.0%	40.0%	0.01 MB
B70	Sicilian, dragon variation	74	33.8%	52.0%	0.06 MB
B72	Sicilian, dragon, 6.Be3	9	44.4%	44.4%	0.01 MB
B71	Sicilian, dragon, Levenfish variation	6	16.7%	58.3%	0.00 MB
B75	Sicilian, dragon, Yugoslav attack	27	33.3%	61.1%	0.02 MB
B78	Sicilian, dragon, Yugoslav attack, 10.O-O-O	48	20.8%	47.9%	0.03 MB
B79	Sicilian, dragon, Yugoslav attack, 12.h4	6	16.7%	58.3%	0.01 MB
B76	Sicilian, dragon, Yugoslav attack, 7...O-O	27	22.2%	44.4%	0.02 MB
B77	Sicilian, dragon, Yugoslav attack, 9...Bd7	26	46.2%	53.8%	0.02 MB
B77	Sicilian, dragon, Yugoslav attack, 9.Bc4	8	37.5%	31.3%	0.01 MB
B76	Sicilian, dragon, Yugoslav attack, Rauser variation	130	26.2%	66.2%	0.08 MB
B72	Sicilian, dragon, classical attack	6	66.7%	50.0%	0.01 MB
B73	Sicilian, dragon, classical, 8.O-O	31	35.5%	53.2%	0.02 MB
B74	Sicilian, dragon, classical, 9.Nb3	20	35.0%	42.5%	0.02 MB
B74	Sicilian, dragon, classical, Alekhine variation	2	0.0%	100.0%	0.00 MB
B72	Sicilian, dragon, classical, Amsterdam variation	3	66.7%	33.3%	0.00 MB
B72	Sicilian, dragon, classical, Grigoriev variation	1	100.0%	50.0%	0.00 MB
B72	Sicilian, dragon, classical, Nottingham variation	2	50.0%	75.0%	0.00 MB
B74	Sicilian, dragon, classical, Reti-Tartakower variation	5	20.0%	70.0%	0.01 MB
B73	Sicilian, dragon, classical, Richter variation	8	25.0%	62.5%	0.01 MB
B73	Sicilian, dragon, classical, Zollner gambit	5	40.0%	60.0%	0.01 MB
B83	Sicilian, modern Scheveningen	88	31.8%	48.9%	0.06 MB
B83	Sicilian, modern Scheveningen, main line	76	40.8%	58.6%	0.06 MB
B83	Sicilian, modern Scheveningen, main line with Nb3	14	35.7%	67.9%	0.01 MB
B20	Sicilian, wing gambit	2	50.0%	75.0%	0.00 MB
B20	Sicilian, wing gambit, Carlsbad variation	2	0.0%	50.0%	0.00 MB
C00	St. George defence	4	75.0%	62.5%	0.00 MB
A06	Tennison (Lemberg, Zukertort) gambit	1	0.0%	100.0%	0.00 MB
C46	Three knights game	28	32.1%	51.8%	0.02 MB
C46	Three knights, Steinitz variation	8	25.0%	62.5%	0.01 MB
C46	Three knights, Steinitz, Rosenthal variation	1	0.0%	0.0%	0.00 MB
D03	Torre attack (Tartakower variation)	67	37.3%	47.0%	0.05 MB
A45	Trompovsky attack (Ruth, Opovcensky opening)	216	32.9%	52.5%	0.15 MB
C55	Two knights defence	7	42.9%	64.3%	0.01 MB
C56	Two knights defence	7	57.1%	57.1%	0.01 MB
C58	Two knights defence	8	37.5%	68.8%	0.01 MB
C59	Two knights defence	90	41.1%	56.1%	0.06 MB
C55	Two knights defence (Modern bishop's opening)	121	38.0%	54.5%	0.09 MB
C56	Two knights defence, Canal variation	1	100.0%	50.0%	0.00 MB
C57	Two knights defence, Fegatello attack	1	0.0%	0.0%	0.00 MB
C57	Two knights defence, Fegatello attack, Polerio defence	3	0.0%	100.0%	0.00 MB
C59	Two knights defence, Goering variation	2	50.0%	25.0%	0.00 MB
C58	Two knights defence, Paoli variation	3	33.3%	50.0%	0.01 MB
C55	Two knights defence, Perreux variation	4	75.0%	62.5%	0.00 MB
C59	Two knights defence, Steinitz variation	214	28.0%	50.9%	0.12 MB
C57	Two knights defence, Ulvestad variation	4	75.0%	62.5%	0.00 MB
C55	Two knights, Max Lange attack, Steinitz variation	1	0.0%	100.0%	0.00 MB
A00	Van't Kruijs opening	9	22.2%	55.6%	0.01 MB
C25	Vienna gambit	6	50.0%	58.3%	0.01 MB
C29	Vienna gambit	10	40.0%	50.0%	0.01 MB
C29	Vienna gambit, Breyer variation	10	40.0%	80.0%	0.01 MB
C25	Vienna game	69	33.3%	52.9%	0.05 MB
C26	Vienna game	23	30.4%	63.0%	0.02 MB
C27	Vienna game	7	42.9%	21.4%	0.01 MB
C28	Vienna game	30	33.3%	50.0%	0.02 MB
C27	Vienna, Alekhine variation	2	50.0%	75.0%	0.00 MB
C26	Vienna, Falkbeer variation	8	37.5%	56.3%	0.01 MB
C26	Vienna, Mengarini variation	2	0.0%	0.0%	0.00 MB
C25	Vienna, Paulsen variation	3	66.7%	66.7%	0.00 MB
C26	Vienna, Paulsen-Mieses variation	41	46.3%	47.6%	0.03 MB
C25	Vienna, Pierce gambit	1	100.0%	50.0%	0.00 MB
A56	Vulture defence	1	100.0%	50.0%	0.00 MB
B12	de Bruycker defence	3	0.0%	66.7%	0.00 MB