Code ECO E00 – Catalan Opening

Coups: 1. d4 Nf6 2. c4 e6 3. g3

├── E00 - 1. d4 Nf6 2. c4 e6 3. Bg5 - Indian Defense: Seirawan Attack (0)
├── E00 - 1. d4 Nf6 2. c4 e6 3. g3 - Catalan Opening (4)
│   ├── E00 - 1. d4 Nf6 2. c4 e6 3. g3 Bb4 - Catalan Opening (2)
│   ├── E00 - 1. d4 Nf6 2. c4 e6 3. g3 c5 - Catalan Opening (2)
│   └── E00 - 1. d4 Nf6 2. c4 e6 3. g3 e5 - Catalan Opening: Hungarian Gambit (0)
├── E00 - 1. d4 Nf6 2. c4 e6 3. g4 - Indian Defense: Devin Gambit (0)
└── E00 - 1. d4 Nf6 2. c4 e6 3. Qb3 - Indian Defense (0)