E11 - 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O Nbd7


├── E11 - 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 Nbd7 7. O-O O-O 8. Qc2 c6 - Bogo-Indian Defense: Retreat Variation (7)
└── E11 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4 5. Bd2 Be7 6. Bg2 O-O 7. O-O Nbd7 8. b4 - Bogo-Indian Defense: Retreat Variation (1)