Sicilian Defense: Open, Najdorf, Poisoned Pawn Variation
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6
Main Transpositions
Most Popular
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 (691/M). More: dbcn ccoe c365
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 (691/M). More: dbcn ccoe c365
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 (792/M). More: dbcn ccoe c365
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 (894/M). More: dbcn ccoe c365
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 (1361/M). More: dbcn ccoe c365
TCEC Games
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 10. f5 Nc6 11. fxe6 fxe6 12. Nxc6 bxc6 13. e5 Nd5 (105cp, 9/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 10. f5 Nc6 (1cp, 232/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 (0cp, 691/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Nb3 Be7 9. Qf3 Nbd7 10. O-O-O (0cp, 115/M, TCEC +1=4-1). Games. More: dbcn ccoe c365
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Nb3 Nc6 (50cp, 21/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. a3 Nc6 (0cp, 28/M, TCEC +2=0-0). Games. More: dbcn ccoe c365
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 (0cp, 1361/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
Biased Popular Lines
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 10. f5 Nc6 11. fxe6 fxe6 12. Nxc6 bxc6 13. e5 Nd5 (105cp, -105cp; 9/M, 8%). More: dbcn ccoe c365
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Nc6 9. Bxf6 gxf6 10. Nb3 Bd7 11. O-O-O O-O-O 12. Be2 h5 13. Rhf1 Kb8 14. Kb1 Be7 15. Rf3 Rdg8 (67cp, -15cp; 7/M, 66%). More: dbcn ccoe c365
Lines with Disagreement to Human Master Play
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 10. e5 dxe5 11. fxe5 Nfd7 12. Ne4 Qxa2 13. Rd1 Qd5 14. Qe3 Qxe5 (201cp, -197cp; 5/M, 66%). More: dbcn ccoe c365
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Nc6 9. Bxf6 gxf6 10. Nb3 Bd7 11. O-O-O O-O-O 12. Kb1 h6 (77cp, -54cp; 5/M, 63%). More: dbcn ccoe c365
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Nb3 Be7 9. Qf3 Nbd7 10. O-O-O Qc7 11. Bd3 b5 12. a3 Bb7 13. Rhe1 Nc5 (63cp, -57cp; 5/M, 31%). More: dbcn ccoe c365
Latest dbcn data: 2025-12-19