1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3

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

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 (20cp, 25/M, TCEC +1=0-1). Games. More: dbcn ccoe
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 (80cp, 33/M, TCEC +1=3-0). Games. More: dbcn ccoe
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 (50cp, 32/M, TCEC +0=0-2). Games. More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O Nc6 (60cp, 222/M, TCEC +1=1-0). Games. More: dbcn ccoe
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 (93cp, 3/M, TCEC +1=1-0). Games. More: dbcn ccoe
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 (40cp, 18/M, TCEC +1=2-0). Games. More: dbcn ccoe
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 (39cp, 25/M, TCEC +0=1-1). Games. More: dbcn ccoe
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 (108cp, 3/M, TCEC +1=1-0). Games. More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 (29cp, 484/M, TCEC +3=0-1). Games. More: dbcn ccoe

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 Re8 (80cp, -19cp; 33/M, 31%). More: dbcn ccoe
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 9. Na3 Nh5 (78cp, -42cp; 5/M, 35%). More: dbcn ccoe
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 9. Be3 h6 (88cp, -38cp; 5/M, 63%). More: dbcn ccoe
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 (70cp, -9cp; 20/M, 19%). More: dbcn ccoe
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 a6 (80cp, -19cp; 6/M, 5%). More: dbcn ccoe
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 Ne5 (93cp, -27cp; 11/M, 48%). More: dbcn ccoe
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 (125cp, -59cp; 11/M, 48%). More: dbcn ccoe
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 (82cp, -67cp; 7/M, 88%). More: dbcn ccoe
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 (123cp, -34cp; 5/M, 35%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 Qc7 (92cp, -30cp; 48/M, 32%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 cxd4 8. cxd4 Nc6 (91cp, -19cp; 36/M, 91%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 cxd4 (72cp, -10cp; 22/M, 14%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 Nfd7 (134cp, -72cp; 11/M, 7%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 a6 (84cp, -22cp; 10/M, 7%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c5 7. h3 d5 (70cp, -8cp; 8/M, 5%). More: dbcn ccoe
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 Nh5 (88cp, -75cp; 7/M, 10%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O c6 7. h3 Qc7 (99cp, -49cp; 8/M, 39%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 O-O 6. O-O Bg4 (71cp, -40cp; 21/M, 5%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 c5 6. O-O Qc7 (88cp, -34cp; 10/M, 14%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 c5 6. O-O Nc6 (111cp, -57cp; 8/M, 12%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 c5 6. h3 Qc7 (88cp, -27cp; 12/M, 21%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 c5 6. h3 Nc6 (85cp, -24cp; 7/M, 12%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nf6 5. Bd3 Bg4 (89cp, -60cp; 10/M, 2%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nd7 5. Bd3 e5 6. O-O c6 (91cp, -58cp; 7/M, 25%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nd7 5. Bd3 e6 6. O-O Ne7 (99cp, -16cp; 7/M, 105%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nd7 5. Bd3 e6 (86cp, -53cp; 8/M, 20%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nd7 5. Bd3 c5 6. O-O a6 (117cp, -16cp; 6/M, 69%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nd7 5. Bd3 c5 6. O-O Qc7 (143cp, -42cp; 4/M, 57%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Nd7 5. Bd3 c5 (101cp, -68cp; 8/M, 19%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 c6 5. Bd3 e5 (93cp, -38cp; 5/M, 16%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 e6 5. Bd3 Ne7 (95cp, -17cp; 5/M, 65%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 e6 (78cp, -50cp; 10/M, 1%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 Bg4 (107cp, -79cp; 10/M, 1%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 e5 (73cp, -45cp; 6/M, 0%). More: dbcn ccoe
1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3 b6 (75cp, -47cp; 5/M, 0%). More: dbcn ccoe

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