C47 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. ....Four knights, Scotch variation

├── C47 - 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 - Four Knights Game: Italian Variation (0)
└── C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 - Four Knights Game (49)
    ├── C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3 - Four Knights Game: Gunsberg Variation (2)
    ├── C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 - Four Knights Game: Scotch Variation Accepted (20)
    │   ├── C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 - Four Knights Game: Scotch Variation Accepted (17)
    │   │   ├── C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 - Four Knights Game: Scotch Variation Accepted (10)
    │   │   │   └── C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 O-O 9. O-O - Four Knights Game: Scotch Variation Accepted, Main Line (9)
    │   │   ├── C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d6 - Four Knights Game: Scotch Variation Accepted (1)
    │   │   └── C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 O-O - Four Knights Game: Scotch Variation Accepted (6)
    │   └── C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bc5 6. Be3 - Four Knights Game: Scotch Variation Accepted (3)
    ├── C47 - 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 - Four Knights Game: Glek System (1)
    └── C47 - 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Nd5 (1)