├── 1. e4 d6 2. d4 Nf6 3. Bd3 e5 - 1. e4 d6 2. d4 Nf6 3. Bd3 e5 - Pirc Defense (1)
├── B07 - 1. d4 g6 2. Nf3 Bg7 3. e4 d6 4. c3 Nf6 - Modern Defense: Geller's System (1)
├── B07 1. e4 d6 2. d4 Nf6 3. Nc3 Pirc defence (1)
├── B08 - 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 - Pirc Defense: Classical Variation (2)
└── B09 - 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 - Pirc Defense: Austrian Attack (0)