Four Knights Game
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6
Main Transpositions
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O to 3. Bb5 Nf6 4. O-O Bc5 5. Nc3
Most Popular
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 (515/M). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 (675/M). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O (789/M). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O (886/M). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 (1155/M). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 (646/M). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 (541/M). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 (3167/M). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 (2132/M). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 (2485/M). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 (530/M). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 (7791/M). More: dbcn ccoe c365
TCEC Games
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 (3cp, 230/M, TCEC +1=0-1). Games. More: dbcn ccoe c365
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 Ne7 (7cp, 36/M, TCEC +0=1-0). Games. More: dbcn ccoe c365
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 Bg4 (26cp, 20/M, TCEC +4=2-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Be6 (62cp, 7/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Ne2 Bg4 8. c3 Bc5 (22cp, 7/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 (1cp, 515/M, TCEC +1=2-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 (1cp, 1155/M, TCEC +2=4-2). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 (1cp, 646/M, TCEC +0=7-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bd7 6. O-O Be7 (48cp, 153/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bd7 (104cp, 186/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 (44cp, 541/M, TCEC +0=3-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. Nxe5 Nxe5 6. d4 Bd6 7. f4 Nc6 8. e5 Bb4 (-1cp, 5/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 (1cp, 468/M, TCEC +2=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bd6 5. d3 O-O 6. a3 Re8 (12cp, 5/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bd6 (4cp, 217/M, TCEC +0=1-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 (0cp, 2132/M, TCEC +1=4-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 (89cp, 31/M, TCEC +4=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 O-O (49cp, 17/M, TCEC +6=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 Bc5 (-1cp, 240/M, TCEC +0=3-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 Be7 8. O-O O-O (7cp, 13/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3 d5 5. Bb5 d4 6. Ne2 Bd6 7. d3 O-O (3cp, 2/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3 d5 5. Bb5 dxe4 6. Nxe5 Qd6 (111cp, 3/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Be2 Bc5 5. O-O O-O (42cp, 14/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Be2 d5 5. exd5 Nxd5 6. O-O Nxc3 7. bxc3 Bd6 8. d4 O-O 9. Rb1 e4 10. Ng5 Qe7 11. f3 e3 12. Ne4 Bf4 (29cp, 0/M, TCEC +1=0-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 Nxe5 5. d4 Ng6 (-203cp, 10/M, TCEC +0=0-2). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 Nxe5 5. d4 Nc6 6. d5 Ne5 7. f4 (44cp, 3/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 Nxe5 5. d4 Nc6 6. e5 Ng8 7. Bc4 (244cp, 0/M, TCEC +0=0-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 Nxe5 5. d4 Nc6 (-39cp, 8/M, TCEC +0=10-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 Nxe5 (-202cp, 21/M, TCEC +0=2-2). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 (202cp, 21/M, TCEC +1=0-2). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 (1cp, 7791/M, TCEC +1=4-1). Games. More: dbcn ccoe c365
Biased Popular Lines
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 Ne6 11. Bc1 c5 (76cp, -38cp; 42/M, 44%). More: dbcn ccoe c365
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 Ne6 11. Bc1 c6 12. Bf1 Qc7 (69cp, -17cp; 12/M, 54%). More: dbcn ccoe c365
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 Ne6 11. Bd2 c5 (75cp, -45cp; 8/M, 44%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bg4 (115cp, -116cp; 15/M, 4%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 h6 (164cp, -165cp; 7/M, 2%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O d6 6. Nd5 Bc5 (174cp, -43cp; 9/M, 55%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O d6 (131cp, -130cp; 57/M, 6%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. d3 d6 6. O-O Bg4 (128cp, -128cp; 8/M, 10%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bd7 6. O-O Be7 7. Re1 O-O 8. Bxc6 Bxc6 9. dxe5 dxe5 10. Qxd8 Raxd8 (173cp, -44cp; 11/M, 86%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bd7 6. O-O Be7 7. Re1 O-O (127cp, -118cp; 25/M, 21%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bd7 6. O-O a6 (129cp, -89cp; 18/M, 7%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bd7 6. Bxc6 Bxc6 7. Qd3 exd4 8. Nxd4 Bd7 (111cp, -37cp; 7/M, 44%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bd7 (104cp, -60cp; 186/M, 56%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 a6 (202cp, -158cp; 10/M, 3%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bg4 (275cp, -231cp; 7/M, 2%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. O-O Bg4 6. h3 Bh5 (75cp, -17cp; 8/M, 95%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. Bxc6+ bxc6 6. d4 a6 (205cp, -190cp; 7/M, 64%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. Nxe5 Bxf2+ (184cp, -185cp; 12/M, 16%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. Bxc6 dxc6 6. Nxe5 Qd4 (135cp, -135cp; 7/M, 38%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 bxc6 6. Nxe5 Qe7 (225cp, -97cp; 8/M, 34%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 bxc6 (128cp, -107cp; 34/M, 26%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d5 (197cp, -197cp; 17/M, 0%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 6. Qg4 Nxc3 (96cp, 0cp; 22/M, 93%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 (89cp, -72cp; 31/M, 27%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe5 (205cp, -188cp; 12/M, 11%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bd6 (87cp, -86cp; 20/M, 0%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 d5 (95cp, -94cp; 15/M, 0%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Nxd4 (117cp, -116cp; 8/M, 0%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 (202cp, -203cp; 21/M, 0%). More: dbcn ccoe c365
Lines with Disagreement to Human Master Play
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bd7 6. O-O Be7 7. Re1 O-O 8. Bxc6 Bxc6 9. dxe5 dxe5 10. Qxd8 Raxd8 11. Nxe5 Bxe4 12. Nxe4 Nxe4 13. Nd3 f5 14. f3 Bc5+ (421cp, -217cp; 5/M, 95%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bd7 6. O-O a6 7. Bxc6 Bxc6 8. dxe5 dxe5 (192cp, -62cp; 6/M, 73%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bd7 (104cp, -60cp; 186/M, 56%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. Bxc6+ bxc6 6. d4 a6 (205cp, -190cp; 7/M, 64%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. Bxc6 dxc6 6. Nxe5 Qd4 (135cp, -135cp; 7/M, 38%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 bxc6 6. Nxe5 Qe7 (225cp, -97cp; 8/M, 34%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 bxc6 (128cp, -107cp; 34/M, 26%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 6. Qg4 Nxc3 7. Qxg7 Rf8 8. a3 Nxd4 9. axb4 Nxc2+ (260cp, -69cp; 6/M, 95%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 6. Qg4 Nxc3 7. Qxg7 Rf8 8. a3 Nxd4 (191cp, -99cp; 7/M, 40%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 (89cp, -72cp; 31/M, 27%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 d5 5. dxe5 dxe4 (193cp, -151cp; 5/M, 58%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3 Bc5 5. Nxe5 Bxf2+ (150cp, -108cp; 5/M, 22%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d3 Bc5 5. Bg5 d6 (58cp, -59cp; 7/M, 25%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Be2 Bc5 5. Nxe5 Nxe5 6. d4 Bb4 (69cp, -53cp; 5/M, 31%). More: dbcn ccoe c365
Latest dbcn data: 2024-02-25