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 9. Re1 Nd8 10. d4 Ne6 11. Bc1 c6 12. Bf1 Nd7 (99cp, 0/M, TCEC +4=0-0). 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 Qe7 (4cp, 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 (1cp, 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 (80cp, 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 (2cp, 515/M, TCEC +1=2-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 (2cp, 1155/M, TCEC +2=6-2). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Bc5 6. Nxe5 O-O 7. Nd3 Bb6 8. Nf4 d5 9. d3 c6 10. O-O Bg4 (-171cp, 0/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 c6 6. O-O d6 7. Nxd4 exd4 8. Ne2 Qb6 (90cp, 0/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 (1cp, 646/M, TCEC +0=9-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bd7 6. O-O Be7 (51cp, 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 (122cp, 186/M, TCEC +2=4-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 (62cp, 541/M, TCEC +0=5-1). 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 (0cp, 5/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 (2cp, 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 h6 7. g4 Nd4 8. g5 hxg5 9. Bxg5 Nxb5 (99cp, 0/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bd6 5. d3 O-O 6. a3 Re8 (10cp, 5/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bd6 (2cp, 217/M, TCEC +0=3-1). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5 (0cp, 247/M, TCEC +0=2-0). 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 (111cp, 31/M, TCEC +5=3-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 O-O (57cp, 17/M, TCEC +6=2-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 Bc5 (-2cp, 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 (3cp, 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 (134cp, 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 (51cp, 14/M, TCEC +0=4-0). 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 (22cp, 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 (-222cp, 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 (29cp, 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 (256cp, 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 (-51cp, 8/M, TCEC +0=10-0). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 Nxe5 (-227cp, 21/M, TCEC +0=2-2). Games. More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 (222cp, 21/M, TCEC +4=2-11). 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 (93cp, -58cp; 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 (72cp, -9cp; 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 (78cp, -46cp; 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 (119cp, -119cp; 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 (170cp, -170cp; 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 (193cp, -41cp; 9/M, 55%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O d6 (152cp, -151cp; 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 (143cp, -141cp; 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 (182cp, -47cp; 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 (135cp, -126cp; 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 (148cp, -116cp; 18/M, 7%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bd7 (113cp, -82cp; 186/M, 56%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 a6 (231cp, -200cp; 10/M, 3%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bg4 (297cp, -266cp; 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 (77cp, -10cp; 8/M, 95%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. O-O Bg4 (67cp, -38cp; 20/M, 17%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. Bxc6+ bxc6 6. d4 a6 (224cp, -220cp; 7/M, 64%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. Nxe5 Nxe5 6. d4 Bb4 (84cp, -84cp; 9/M, 16%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. Nxe5 Bxf2+ (199cp, -199cp; 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 (141cp, -140cp; 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 (237cp, -100cp; 8/M, 34%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 bxc6 (137cp, -123cp; 34/M, 26%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d5 (234cp, -234cp; 17/M, 0%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Qd3 Nxe5 7. dxe5 Qxe5 8. Bd2 O-O (84cp, -5cp; 13/M, 95%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Qd3 Nxe5 (79cp, -63cp; 13/M, 71%). 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 (115cp, -13cp; 18/M, 83%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 (102cp, -87cp; 31/M, 27%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe5 (234cp, -219cp; 12/M, 11%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bd6 (114cp, -113cp; 20/M, 0%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 d5 (103cp, -102cp; 15/M, 0%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Nxd4 (138cp, -137cp; 8/M, 0%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d3 Bc5 5. Bg5 d6 (78cp, -78cp; 7/M, 25%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5 (231cp, -232cp; 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 Bb4 5. O-O O-O 6. d3 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. d4 Ne6 11. Bc1 c5 (93cp, -58cp; 42/M, 44%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 Bc5 6. Nxe5 Qe7 7. Nd3 Nxe4 (107cp, -73cp; 5/M, 74%). 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 11. Nxe5 Bxe4 12. Nxe4 Nxe4 13. Nd3 f5 14. f3 Bc5+ (415cp, -177cp; 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 Be7 7. Re1 O-O 8. Bxc6 Bxc6 9. dxe5 dxe5 10. Qxd8 Raxd8 11. Nxe5 Bxe4 (238cp, -56cp; 6/M, 66%). 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 (206cp, -58cp; 6/M, 73%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 Bd7 (113cp, -82cp; 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 (224cp, -220cp; 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 (141cp, -140cp; 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 (237cp, -100cp; 8/M, 34%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 bxc6 (137cp, -123cp; 34/M, 26%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Qe7 6. Qd3 Nxe5 (79cp, -63cp; 13/M, 71%). 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+ (320cp, -111cp; 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 (209cp, -94cp; 7/M, 40%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 (102cp, -87cp; 31/M, 27%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. d5 Ne7 6. Nxe5 O-O (69cp, -69cp; 5/M, 25%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 d5 5. dxe5 dxe4 (218cp, -177cp; 5/M, 58%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3 Bc5 5. Nxe5 Bxf2+ (164cp, -151cp; 5/M, 22%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d3 Bc5 5. Bg5 d6 (78cp, -78cp; 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 (90cp, -85cp; 5/M, 31%). More: dbcn ccoe c365
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Be2 Bb4 5. Nd5 Ba5 (57cp, -57cp; 8/M, 41%). More: dbcn ccoe c365
Latest dbcn data: 2025-12-19