Modern Defense: Geller System
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3
Main Transpositions
Most Popular
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 (664/M). More: dbcn ccoe c365
TCEC Games
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O Nc6 7. Nbd2 e5 8. Re1 Nh5 (15cp, 25/M, TCEC +1=0-1). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O Nc6 7. Nbd2 e5 (9cp, 88/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O Nc6 7. h3 e5 8. Re1 Re8 9. d5 Nb8 (86cp, 2/M, TCEC +0=4-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O Nc6 7. h3 e5 8. Re1 Re8 (54cp, 33/M, TCEC +2=3-2). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O Nc6 7. h3 e5 8. Re1 h6 (34cp, 32/M, TCEC +0=0-2). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O Nc6 (33cp, 222/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 Nc6 8. d5 Na5 (84cp, 6/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 Nc6 8. Re1 Nd7 (63cp, 3/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 Nc6 (62cp, 53/M, TCEC +3=5-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 Qc7 8. Be3 Rd8 (89cp, 0/M, TCEC +2=0-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 Qc7 8. Re1 e5 (99cp, 5/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 Qc7 8. Re1 Rd8 (111cp, 2/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. Nbd2 cxd4 8. cxd4 Nc6 (2cp, 18/M, TCEC +1=2-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O Nbd7 7. Re1 e5 8. Nbd2 Re8 (29cp, 25/M, TCEC +0=1-1). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O Bg4 7. h3 Bxf3 8. Qxf3 Nc6 (82cp, 3/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. Nbd2 Bg4 (64cp, 2/M, TCEC +0=2-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. h3 Nbd7 7. Be3 b6 8. O-O (-34cp, 0/M, TCEC +1=0-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 c5 6. O-O Qc7 (79cp, 10/M, TCEC +2=10-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 c5 (52cp, 100/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 (32cp, 484/M, TCEC +3=0-1). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nd7 5. Bd3 e6 6. O-O Ne7 7. Re1 a6 (85cp, 2/M, TCEC +4=6-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nd7 5. Bd3 e6 6. O-O Ne7 7. Re1 b6 8. a4 a6 (84cp, 1/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nc6 5. Bd3 Bg4 (109cp, 4/M, TCEC +1=1-0). Games. More: dbcn ccoe c365
Biased Popular Lines
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O Nc6 7. h3 e5 8. Re1 Nh5 (65cp, -35cp; 20/M, 19%). More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 Nc6 8. d5 Nb8 (116cp, -56cp; 11/M, 48%). More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 Nc6 8. Be3 Nd7 (77cp, -54cp; 7/M, 88%). More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 Qc7 (84cp, -43cp; 48/M, 32%). More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 Nfd7 (104cp, -63cp; 11/M, 7%). More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 d5 (77cp, -36cp; 8/M, 5%). More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c6 7. h3 Qc7 (79cp, -43cp; 8/M, 39%). More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 c5 6. O-O Qc7 (84cp, -43cp; 10/M, 14%). More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 c5 6. O-O Nc6 (99cp, -58cp; 8/M, 12%). More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 c5 6. h3 Qc7 (83cp, -56cp; 12/M, 21%). More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nd7 5. Bd3 e6 (73cp, -51cp; 8/M, 20%). More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nd7 5. Bd3 c5 (80cp, -58cp; 8/M, 19%). More: dbcn ccoe c365
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Bg4 (75cp, -51cp; 10/M, 1%). More: dbcn ccoe c365
Lines with Disagreement to Human Master Play
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 Nc6 8. d5 Nb8 (116cp, -56cp; 11/M, 48%). More: dbcn ccoe c365
Latest dbcn data: 2025-12-19