(A90) Bogo-Indian
1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Bb4+
(A90) Bogo-Indian (Alekhine)
1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Bb4+ 5. Bd2 Be7
(A90) Classical (Stonewall)
1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 d5 5. Nf3 c6 6.O-O Bd6