Code ECO B06 – Modern Defense

Coups: 1. e4 g6

├── B06 - 1. e4 g6 2. d4 Bg7 3. Nc3 a6 (1)
├── B06 - 1. e4 g6 2. d4 Bg7 3. Nc3 d6 - Modern Defense: Standard Defense (4)
│   ├── B06 - 1. d4 g6 2. e4 Bg7 3. Nc3 d6 4. Bg5 h6 - Modern Defense: Standard Defense (1)
│   └── B06 - 1. e4 g6 2. d4 d6 3. Nc3 Bg7 4. Be3 - Modern Defense: Standard Defense (3)
│       ├── B06 - 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 Nd7 (1)
│       └── B06 - 1. e4 g6 2. d4 d6 3. Nc3 Bg7 4. Be3 a6 - Modern Defense: Standard Defense (2)
│           ├── B06 - 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. g4 (1)
│           └── B06 - 1. e4 g6 2. d4 d6 3. Nc3 Bg7 4. Be3 a6 5. Nf3 - Modern Defense: Standard Defense (1)
├── B06 - 1. e4 g6 2. d4 Bg7 3. Nf3 (2)
└── B06 - 1. e4 g6 2. d4 d6 3. Nc3 c6 - Rat Defense: Accelerated Gurgenidze (1)