English Opening

175 named lines, ECO A10–C20. The main position arises after1. c4.

Line	Games	White / draw / Black
English Opening A10 · 1. c4	366,272	51%44%
Agincourt Defense (1. c4 e6) A13 · 1. c4 e6	38,614	49%45%
Anglo-Dutch Defense A10 · 1. c4 f5	6,905	50%45%
Anglo-Indian Defense (1. c4 Nf6) A15 · 1. c4 Nf6	60,946	50%45%
Anglo-Lithuanian Variation A10 · 1. c4 Nc6	5,006	52%43%
Anglo-Scandinavian Defense A10 · 1. c4 d5	29,920	53%43%
Caro-Kann Defensive System A11 · 1. c4 c6	23,793	48%46%
Great Snake Variation A10 · 1. c4 g6	19,212	50%45%
Jaenisch Gambit A10 · 1. c4 b5	1,081	53%42%
King's English Variation (1. c4 e5) A20 · 1. c4 e5	118,181	51%44%
Myers Defense A10 · 1. c4 g5	422	51%45%
Symmetrical Variation (1. c4 c5) A30 · 1. c4 c5	39,178	51%44%
Achilles-Omega Gambit A10 · 1. c4 Nf6 2. e4	90	51%47%
Agincourt Defense (1… e6 2. Nf3) A13 · 1. c4 e6 2. Nf3	2,482	51%44%
Anglo-Dutch Defense, Hickmann Gambit A10 · 1. c4 f5 2. e4	62	37%55%
Anglo-Indian Defense, King's Knight Variation A15 · 1. c4 Nf6 2. Nf3	3,384	52%41%
Anglo-Indian Defense, Queen's Knight Variation A16 · 1. c4 Nf6 2. Nc3	35,497	50%45%
King's English Variation, Nimzowitsch Variation A20 · 1. c4 e5 2. Nf3	2,608	50%46%
King's English Variation, Reversed Sicilian A21 · 1. c4 e5 2. Nc3	70,327	52%44%
Symmetrical Variation (1… c5 2. Nf3) A30 · 1. c4 c5 2. Nf3	3,663	51%43%
Symmetrical Variation, Normal Variation A34 · 1. c4 c5 2. Nc3	22,437	51%44%
The Whale C20 · 1. e4 e5 2. c4	9,706	48%47%
Wade Gambit A10 · 1. c4 f5 2. g4	28	50%50%
Wing Gambit A30 · 1. c4 c5 2. b4	82	49%44%
Adorjan Defense A10 · 1. c4 g6 2. e4 e5	8	38%63%
Agincourt Defense (2. Nf3 d5) A13 · 1. c4 e6 2. Nf3 d5	1,491	50%44%
Anglo-Grünfeld Defense A16 · 1. c4 Nf6 2. Nc3 d5	2,667	49%45%
Anglo-Indian Defense, Hedgehog System A17 · 1. c4 Nf6 2. Nc3 e6	8,993	51%44%
Anglo-Indian Defense, King's Indian Formation A15 · 1. c4 Nf6 2. Nf3 g6	1,318	51%43%
Anglo-Indian Defense, Old Indian Formation A15 · 1. c4 Nf6 2. Nf3 d6	291	49%43%
Anglo-Indian Defense, Queen's Indian Formation (2. Nf3 b6) A15 · 1. c4 Nf6 2. Nf3 b6	71	41%14%45%
Anglo-Indian Defense, Scandinavian Defense A15 · 1. c4 Nf6 2. Nf3 d5	215	54%38%
Anglo-Scandinavian Defense, Löhn Gambit A10 · 1. c4 d5 2. cxd5 e6	731	58%39%
Anglo-Scandinavian Defense, Schulz Gambit A10 · 1. c4 d5 2. cxd5 Nf6	2,569	55%41%
Drill Variation A20 · 1. c4 e5 2. g3 h5	57	53%47%
King's English Variation, Kramnik-Shirov Counterattack A21 · 1. c4 e5 2. Nc3 Bb4	4,810	50%46%
King's English Variation, Nimzowitsch-Flohr Variation A20 · 1. c4 e5 2. Nf3 e4	395	45%51%
King's English Variation, Reversed Closed Sicilian (2. Nc3 Nc6) A25 · 1. c4 e5 2. Nc3 Nc6	12,900	52%43%
King's English Variation, Two Knights Variation A22 · 1. c4 e5 2. Nc3 Nf6	25,404	51%44%
Myers Gambit A10 · 1. c4 g5 2. d4 Bg7	29	52%48%
Symmetrical Variation, Two Knights Variation A35 · 1. c4 c5 2. Nc3 Nc6	11,881	51%44%
Zilbermints Gambit A10 · 1. c4 g5 2. d4 e5	–
Anglo-Dutch Variation, Chabanon Gambit A10 · 1. c4 f5 2. Nf3 d6 3. e4	–
Anglo-Dutch Variation, Ferenc Gambit A10 · 1. c4 f5 2. Nc3 Nf6 3. e4	39	33%62%
Carls-Bremen System A22 · 1. c4 e5 2. Nc3 Nf6 3. g3	9,729	51%44%
King's English Variation (2… d6 3. Nf3) A21 · 1. c4 e5 2. Nc3 d6 3. Nf3	1,327	53%42%
King's English Variation, Three Knights System A27 · 1. c4 e5 2. Nc3 Nc6 3. Nf3	3,103	52%43%
King's English, Mazedonisch A22 · 1. c4 e5 2. Nc3 Nf6 3. f4	64	48%44%
Mikenas-Carls Variation (2… Nf6 3. e4) A18 · 1. c4 e6 2. Nc3 Nf6 3. e4	590	54%43%
Symmetrical Variation, Anti-Benoni Variation A31 · 1. c4 Nf6 2. d4 c5 3. Nf3	48	50%46%
Symmetrical Variation, Fianchetto Variation A34 · 1. c4 Nf6 2. Nc3 c5 3. g3	885	50%43%
Symmetrical Variation, Napolitano Gambit A30 · 1. c4 c5 2. Nf3 Nf6 3. b4	1	100%
Symmetrical Variation, Three Knights Variation A34 · 1. c4 c5 2. Nc3 Nf6 3. Nf3	668	52%43%
Symmetrical Variation, Two Knights, Fianchetto Variation A36 · 1. c4 c5 2. Nc3 Nc6 3. g3	5,046	51%43%
Agincourt Defense, Catalan Defense (3. g3 c5) A13 · 1. c4 e6 2. Nf3 d5 3. g3 c5	32	44%50%
Agincourt Defense, Kurajica Defense A13 · 1. c4 e6 2. Nf3 d5 3. g3 c6	48	60%33%
Anglo-Indian Defense, Grünfeld Formation A15 · 1. c4 Nf6 2. Nf3 g6 3. g3 d5	4	100%
Anglo-Indian Defense, Nimzo-English A17 · 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4	183	46%49%
Anglo-Indian Defense, Queen's Indian Formation (3. Nf3 b6) A17 · 1. c4 e6 2. Nc3 Nf6 3. Nf3 b6	21	29%67%
Anglo-Indian Defense, Romanishin Variation A15 · 1. c4 e6 2. Nf3 Nf6 3. g3 a6	4	75%25%
Anglo-Indian Defense, Scandinavian Defense, Exchange Variation A15 · 1. c4 Nf6 2. Nf3 d5 3. cxd5 Nxd5	118	57%35%
Anglo-Indian Defense, Slav Formation A15 · 1. c4 Nf6 2. Nf3 g6 3. g3 c6	6	83%17%
Anglo-Scandinavian Defense, Malvinas Variation A10 · 1. c4 d5 2. cxd5 Qxd5 3. Nc3 Qa5	3,890	53%43%
King's English Variation, Four Knights Variation (3. Nf3 Nc6) A28 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6	3,120	53%43%
King's English Variation, Keres Defense A21 · 1. c4 e5 2. Nc3 d6 3. g3 c6	317	50%47%
King's English Variation, Smyslov Defense A21 · 1. c4 e5 2. Nc3 d6 3. Nf3 Bg4	39	59%38%
King's English Variation, Two Knights Variation, Fianchetto Line A24 · 1. c4 e5 2. Nc3 Nf6 3. g3 g6	191	54%42%
King's English Variation, Two Knights Variation, Keres Variation (3. g3 c6) A23 · 1. c4 e5 2. Nc3 Nf6 3. g3 c6	1,314	47%47%
King's English Variation, Two Knights Variation, Reversed Dragon A22 · 1. c4 e5 2. Nc3 Nf6 3. g3 d5	2,299	50%46%
King's English Variation, Two Knights Variation, Smyslov System A22 · 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4	1,646	50%47%
Mikenas-Carls Variation (3. e4 Nc6) A18 · 1. c4 e6 2. Nc3 Nf6 3. e4 Nc6	22	73%27%
Mikenas-Carls, Sicilian A19 · 1. c4 e6 2. Nc3 Nf6 3. e4 c5	53	49%45%
Neo-Catalan A13 · 1. c4 e6 2. Nf3 d5 3. g3 Nf6	296	44%48%
Symmetrical Variation (3. Nf3 e5) A35 · 1. c4 c5 2. Nc3 Nf6 3. Nf3 e5	9	33%56%
Symmetrical Variation, Four Knights Variation A35 · 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6	106	53%43%
Anglo-Indian Defense, Anglo-Grünfeld Variation (3… Nxd5 4. Nf3) A16 · 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3	297	57%38%
Anglo-Indian Defense, Anti-Anti-Grünfeld A15 · 1. c4 Nf6 2. Nc3 g6 3. Nf3 Bg7 4. e4	103	44%50%
Anglo-Indian Defense, Zvjaginsev-Krasenkow Attack A17 · 1. c4 e6 2. Nc3 Nf6 3. Nf3 Bb4 4. g4	–
Four Knights System, Nimzowitsch Variation A28 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4	398	52%43%
King's English Variation, Four Knights Variation, Fianchetto Line (3… Nc6 4. g3) A29 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3	1,041	53%42%
King's English Variation, Four Knights Variation, Flexible Line A28 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d3	277	51%42%
King's English Variation, Four Knights Variation, Korchnoi Line A28 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. a3	107	57%36%
King's English Variation, Four Knights Variation, Quiet Line (3… Nc6 4. e3) A28 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3	852	53%44%
King's English Variation, Kahiko-Hula Gambit A20 · 1. c4 e5 2. e3 Nf6 3. f4 exf4 4. Nf3	–
Mikenas-Carls Variation (3… d5 4. e5) A18 · 1. c4 e6 2. Nc3 Nf6 3. e4 d5 4. e5	115	60%35%
Porcupine Variation A10 · 1. c4 f5 2. Nc3 Nf6 3. e4 fxe4 4. g4	4	100%
Agincourt Defense, Bogoljubow Defense A13 · 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Bd6	23	48%43%
Agincourt Defense, Catalan Defense Accepted A13 · 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 dxc4	10	50%50%
Agincourt Defense, Catalan Defense, Semi-Slav Defense A13 · 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 c6	12	58%33%
Anglo-Indian Defense, Anglo-Grünfeld Variation (4. Nf3 g6) A16 · 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6	96	60%34%
Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit A19 · 1. c4 e6 2. Nc3 Nf6 3. e4 c5 4. e5 Ng8	26	54%38%
Anglo-Indian Defense, King's Indian Formation, Double Fianchetto A15 · 1. c4 Nf6 2. Nf3 g6 3. g3 b6 4. Bg2 Bb7	1	100%
Anglo-Indian Defense, Queen's Indian Formation (4. Bg2 Bb7) A15 · 1. c4 e6 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7	20	45%45%
King's English Variation, Adhiban Gambit A22 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Ng5 c6	122	43%52%
King's English Variation, Bellon Gambit A22 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Ng5 b5	22	59%36%
King's English Variation, Four Knights Variation, Bradley Beach Variation A28 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 e4	91	49%51%
King's English Variation, Four Knights Variation, Fianchetto Line (4. g3 Bb4) A29 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4	229	47%49%
King's English Variation, Taimanov Variation A25 · 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7	270	48%43%
King's English Variation, Troger Defense A21 · 1. c4 e5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Be6	106	58%39%
King's English Variation, Two Knights Variation, Keres Variation (4. Bg2 c6) A23 · 1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 c6	265	51%45%
King's English, Erbenheimer Gambit A22 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Ng5 Ng4	7	71%29%
Neo-Catalan Declined A13 · 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7	134	43%51%
Romanishin Gambit A13 · 1. c4 Nf6 2. Nf3 e6 3. g3 a6 4. Bg2 b5	–
Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense (4. Nxd4 Nf6) A32 · 1. c4 e6 2. d4 c5 3. Nf3 cxd4 4. Nxd4 Nf6	3	100%
Symmetrical Variation, Four Knights Variation, Keres-Parma System A35 · 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 e6	1	100%
Symmetrical Variation, Ultra-Symmetrical Variation A36 · 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6	274	53%41%
Agincourt Defense, Catalan Defense (4… Bb7 5. O-O) A13 · 1. c4 e6 2. Nf3 d5 3. g3 b6 4. Bg2 Bb7 5. O-O	4	75%25%
Agincourt Defense, Neo-Catalan Declined (4… Be7 5. O-O) A14 · 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O	126	42%51%
Agincourt Defense, Neo-Catalan Declined, Early b3 (4… Be7 5. b3) A14 · 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. b3	3	33%67%
Agincourt Defense, Wimpy System A13 · 1. c4 e6 2. Nf3 Nf6 3. b3 d5 4. Bb2 c5 5. e3	1	100%
Anglo-Indian Defense, Queen's Indian Variation A17 · 1. c4 e6 2. Nc3 Nf6 3. Nf3 b6 4. e4 Bb7 5. Bd3	–
King's English Variation, Closed System A25 · 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3	46	57%33%
King's English Variation, Hungarian Attack A25 · 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Rb1	2	50%50%
King's English Variation, Reversed Closed Sicilian (4… Bb4 5. Nd5) A25 · 1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Bb4 5. Nd5	119	57%36%
Symmetrical Variation, Botvinnik System A36 · 1. c4 c5 2. e4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2	3	67%33%
Symmetrical Variation, Three Knights, Fianchetto Variation (4… Bg7 5. Nf3) A37 · 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3	646	50%43%
Agincourt Defense (5. e3 O-O) A13 · 1. c4 e6 2. Nf3 d5 3. b3 Nf6 4. Bb2 Be7 5. e3 O-O	4	50%50%
Agincourt Defense, Neo-Catalan Declined, Early b3 (5. b3 b6) A14 · 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. b3 b6	–
Agincourt Defense, Neo-Catalan Declined, Early b3 (5. b3 c5) A14 · 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. b3 c5	–
Anglo-Indian Defense (5. e3 e6) A17 · 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 c5 5. e3 e6	–
Anglo-Indian Defense, Anglo-Grünfeld Variation (5. Bg2 Nb6) A16 · 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nb6	24	25%71%
Anglo-Indian Defense, Anglo-Grünfeld Variation (5. Bg2 Nxc3) A16 · 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nxc3	91	52%38%
Closed, Taimanov Variation (5. Bg2 Bg7) A25 · 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Rb1 Nh6 5. Bg2 Bg7	–
King's English Variation, Closed System, Full Symmetry A26 · 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6	23	61%17%22%
King's English Variation, Four Knights Variation, Fianchetto Line (5. Nf3 Nc6) A29 · 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nf3 Nc6	138	54%38%
King's English Variation, Four Knights Variation, Quiet Line (5. Qc2 Bxc3) A28 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3	32	47%47%
Symmetrical Variation (5. d4 cxd4) A34 · 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 d5 5. d4 cxd4	1	100%
Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense (5. Nxd4 Nc6) A33 · 1. c4 e6 2. Nf3 Nf6 3. Nc3 c5 4. d4 cxd4 5. Nxd4 Nc6	–
Symmetrical Variation, Botvinnik System Reversed, with e3 A36 · 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 e5	72	54%43%
Symmetrical Variation, Botvinnik System Reversed, with Nf3 (5. Nf3 e5) A37 · 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 e5	43	56%35%
Symmetrical Variation, Full Symmetry Line A38 · 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7	9	33%67%
Symmetrical Variation, Rubinstein Variation (5. Bg2 Nc7) A34 · 1. c4 Nf6 2. Nc3 c5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc7	47	47%45%
Agincourt Defense (5… O-O 6. d4) A13 · 1. c4 e6 2. Nf3 d5 3. b3 Nf6 4. Bb2 Be7 5. e3 O-O 6. d4	1	100%
Agincourt Defense, Neo-Catalan Declined (5… O-O 6. b3) A14 · 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3	49	41%55%
King's English Variation, Botvinnik System A26 · 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. e4	2	100%
King's English Variation, Four Knights Variation, Fianchetto Line (5… Nc6 6. d3) A29 · 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. d3	8	63%38%
King's English Variation, Four Knights Variation, Fianchetto Line, with .. d6 (5… d6 6. Bg2) A29 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bc5 5. d3 d6 6. Bg2	2	100%
King's English Variation, Reversed Closed Sicilian (5… d6 6. Nge2) A25 · 1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Bb4 5. e4 d6 6. Nge2	2	100%
King's English Variation, Reversed Closed Sicilian (5… Nc6 6. Bg2) A25 · 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. e4 O-O 5. Nge2 Nc6 6. Bg2	2	50%50%
Symmetrical Variation, Three Knights, Fianchetto Variation (5… d6 6. Nc3) A37 · 1. c4 c5 2. Nf3 Nc6 3. g3 g6 4. Bg2 Bg7 5. O-O d6 6. Nc3	14	50%50%
Symmetrical Variation, Three Knights, Fianchetto Variation (5… e6 6. Nc3) A37 · 1. c4 c5 2. Nf3 Nc6 3. g3 g6 4. Bg2 Bg7 5. O-O e6 6. Nc3	21	48%19%33%
Agincourt Defense, Neo-Catalan Declined (6. b3 c5) A14 · 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. c4 O-O 6. b3 c5	13	54%38%
Agincourt Defense, Tarrasch Defense A13 · 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 c5 5. b3 Nc6 6. O-O Be7	–
Anglo-Grünfeld Defense, Korchnoi Variation A16 · 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6 5. g3 Bg7 6. Bg2 e5	–
Closed, Taimanov Variation (6. Nge2 Nh6) A25 · 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Nh6	–
King's English Variation, Bremen-Hort Variation A25 · 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Be6	18	50%44%
King's English Variation, Four Knights Variation, Fianchetto Line, with .. d6, a6 A29 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bc5 5. d3 d6 6. Bg2 a6	–
King's English Variation, Four Knights Variation, Fianchetto Line, with .. d6, Be7 A29 · 1. c4 e5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 d6 5. d3 Be7 6. Nf3 O-O	3	33%67%
King's English Variation, Four Knights Variation, Fianchetto Line, with .. d6, h6 A29 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bc5 5. d3 d6 6. Bg2 h6	–
King's English Variation, Four Knights Variation, Fianchetto Line, with Bc5 A29 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Bc5	17	18%82%
King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 A29 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nb6	57	49%46%
King's English Variation, Reversed Closed Sicilian (6. Nge2 Bg4) A25 · 1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Bb4 5. e4 d6 6. Nge2 Bg4	2	100%
Symmetrical Variation, Anti-Benoni Variation, Geller Variation A33 · 1. c4 e6 2. Nf3 Nf6 3. Nc3 c5 4. d4 Nc6 5. g3 cxd4 6. Nxd4 Qb6	–
Symmetrical Variation, Botvinnik System Reversed, with Nf3 (6. O-O d6) A37 · 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 e5 6. O-O d6	3	67%33%
Symmetrical Variation, Botvinnik System Reversed, with Nf3 (6. O-O Nge7) A37 · 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 e5 6. O-O Nge7	20	55%40%
Symmetrical Variation, Hedgehog Defense A30 · 1. c4 e6 2. Nf3 Nf6 3. Nc3 c5 4. g3 b6 5. Bg2 Bb7 6. O-O Be7	–
Symmetrical Variation, Rubinstein Variation (6. Bg2 Nc7) A34 · 1. c4 c5 2. Nf3 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Nc6 6. Bg2 Nc7	4	25%25%50%
Agincourt Defense, Neo-Catalan Declined (6… c5 7. e3) A14 · 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. c4 O-O 6. b3 c5 7. e3	–
King's English Variation, Four Knights Variation, Fianchetto Line, with .. d6 (6… O-O 7. O-O) A29 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bc5 5. d3 d6 6. Bg2 O-O 7. O-O	1	100%
King's English Variation, Four Knights Variation, Quiet Line (6… Re8 7. Qf5) A28 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. Qf5	5	60%40%
Symmetrical Variation, Botvinnik System Reversed, with Nf3 (6… Nge7 7. a3) A37 · 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 e5 6. O-O Nge7 7. a3	3	67%33%
Symmetrical Variation, Botvinnik System Reversed, with Nf3 (6… Nge7 7. d3) A37 · 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 e5 6. O-O Nge7 7. d3	9	44%12%44%
Symmetrical Variation, Double Fianchetto A38 · 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. b3	11	55%45%
Symmetrical Variation, Duchamp Variation A38 · 1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c5 6. Nc3 Nc6 7. d3	–
Symmetrical Variation, Mecking Variation A39 · 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4	3	33%67%
Agincourt Defense, Keres Defense A14 · 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O c5 6. cxd5 Nxd5 7. Nc3 Nc6	–
Agincourt Defense, Neo-Catalan Declined (7. e3 d4) A14 · 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. c4 O-O 6. b3 c5 7. e3 d4	–
Agincourt Defense, Neo-Catalan Declined (7. e3 Nc6) A14 · 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. c4 O-O 6. b3 c5 7. e3 Nc6	–
King's English Variation, Four Knights Variation, Fianchetto Line (6… d6 7. O-O O-O) A29 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 Bxc3 6. dxc3 d6 7. O-O O-O	–
King's English Variation, Four Knights Variation, Fianchetto Line (6… Be7 7. O-O O-O) A29 · 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. d3 Be7 7. O-O O-O	1	100%
King's English Variation, Four Knights Variation, Fianchetto Line, Delayed .. Nc6 A29 · 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Bg2 O-O 5. Nf3 Re8 6. O-O e4 7. Nd4 Nc6	2	50%50%
Symmetrical Variation, Botvinnik System Reversed, with Nf3 (7. d3 d6) A37 · 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 e5 6. O-O Nge7 7. d3 d6	2	50%50%
King's English Variation, Botvinnik System, Prickly Pawn Pass System A10 · 1. c4 g6 2. Nc3 Bg7 3. g3 Nf6 4. Bg2 O-O 5. e4 d6 6. Nge2 e5 7. O-O c6 8. d3 a6	–
King's English Variation, Four Knights Variation (8. bxc3 Ne5) A28 · 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5	–
Symmetrical, Hedgehog, Flexible Formation A30 · 1. c4 e6 2. Nf3 c5 3. Nc3 Nf6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4 d6 9. Rd1 a6 10. b3 Nbd7	–