Four Knights Game

49 named lines, ECO C47–C50. The main position arises after1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6.

Line	Games	White / draw / Black
Four Knights Game C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6	78,003	48%47%
Glek System (3… Nf6 4. g3) C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3	830	46%49%
Gunsberg Variation C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3	1,837	51%45%
Halloween Gambit C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5	2,850	54%42%
Italian Variation (3… Nf6 4. Nc3) C47 · 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3	32,507	49%47%
Naroditsky Variation C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nd5	504	46%48%
Scotch Variation C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4	17,226	51%44%
Spanish Variation (3… Nf6 4. Bb5) C48 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5	15,522	50%45%
Italian Variation (4. Nc3 Nf6) C50 · 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6	12,196	49%47%
Scotch Variation Accepted C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4	12,524	50%44%
Spanish Variation, Classical Variation C48 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5	3,395	47%48%
Spanish Variation, Double Spanish (4. Bb5 Bb4) C49 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4	2,468	51%43%
Spanish Variation, Rubinstein Variation (4. Bb5 Nd4) C48 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4	1,249	47%49%
Gunsberg Variation, Provincial Opening C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3 d6 5. h3	61	52%46%
Italian Variation, Noa Gambit C47 · 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Nxe4 5. Bxf7+	1,264	45%52%
Scotch Variation, Belgrade Gambit C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5	539	53%44%
Scotch Variation, Krause Gambit C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5	145	58%39%
Spanish Variation, Ranken Variation C48 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6	2,196	53%42%
Spanish Variation, Rubinstein Variation (4… Nd4 5. Be2) C48 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Be2	23	52%39%
Spanish Variation, Rubinstein Variation Accepted C48 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Nxd4	489	45%52%
Spanish Variation, Rubinstein Variation, Henneberger Variation C48 · 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Nd4 5. O-O	113	51%42%
Scotch Variation, Krause Gambit, Leonhardt Defense C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7	21	19%71%
Scotch Variation, Oxford Gambit C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. d5 Nd4	66	64%32%
Scotch Variation, Schmid Defense C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Nxe4	133	49%43%
Spanish Variation, Double Spanish (5… O-O 6. d3) C49 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3	180	49%44%
Spanish Variation, Nimzowitsch Variation C49 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. Bxc6	67	52%40%
Spanish Variation, Rubinstein Variation (5… Qe7 6. f4) C48 · 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Nd4 5. Nxe5 Qe7 6. f4	15	20%13%67%
Scotch Variation, Belgrade Gambit, Modern Defense C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5 Nxe4 6. Qe2 f5	51	61%37%
Spanish Variation (6. d3 Bxc3) C49 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3	34	41%15%44%
Spanish Variation, Rubinstein Variation, Marshall Gambit C48 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Bc5 6. Nxe5 O-O	2	100%
Spanish Variation, Rubinstein Variation, Marshall Variation C48 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Nxe5 Bc5 6. O-O O-O	1	100%
Spanish Variation, Symmetrical Variation (6. d3 d6) C49 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6	106	53%43%
Glek System (6… Nxc3 7. bxc3) C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3	40	35%57%
Spanish Variation, Symmetrical Variation (6… d6 7. Ne2) C49 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Ne2	13	69%23%
Spanish Variation, Alatortsev Variation C49 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Qe7 7. Ne2 d5	–
Spanish Variation, Gunsberg Counterattack C49 · 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. Nd5 Nxd5 7. exd5 e4	–
Spanish Variation, Svenonius Variation C49 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d5	2	100%
Spanish Variation, Symmetrical Variation (7. Bg5 Ne7) C49 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Ne7	6	17%16%67%
Spanish Variation, Symmetrical Variation, Tarrasch Variation C49 · 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Be6	1	100%
Spanish Variation, Janowski Variation C49 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 Bxc3 7. bxc3 d6 8. Re1	6	50%17%33%
Halloween Gambit, Oldtimer Variation C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 Nxe5 5. d4 Ng6 6. e5 Ng8 7. Bc4 Bb4 8. Qf3 f5	1	100%
Spanish Variation, Symmetrical Variation, Metger Unpin C49 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7	10	50%50%
Scotch Variation Accepted, Main Line C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 O-O 9. O-O	111	53%12%35%
Spanish Variation, Bardeleben Variation C48 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Nxe5 Nxe5 7. d4 Bd6 8. f4 Nc6 9. e5 Bb4	–
Spanish Variation, Rubinstein Variation, Maróczy Variation C48 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Be2 Nxf3+ 6. Bxf3 Bc5 7. O-O O-O 8. d3 d6 9. Na4 Bb6	–
Spanish Variation, Spielmann Variation C48 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 dxc6 6. Nxe5 Nxe4 7. Nxe4 Qd4 8. O-O Qxe5 9. Re1 Be6 10. d4 Qd5	6	50%17%33%
Spanish Variation, Symmetrical Variation (10. d4 Bg4) C49 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Bg4	–
Spanish Variation, Symmetrical Variation, Blake Variation C49 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Ne7 8. Nh4 c6 9. Bc4 d5 10. Bb3 Qd6	–
Halloween Gambit, Plasma Variation C47 · 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 Nxe5 5. d4 Nc6 6. d5 Ne5 7. f4 Ng6 8. e5 Ng8 9. d6 cxd6 10. exd6 Qf6 11. Nb5 Rb8	5	20%80%