An entry in the Encyclopedia of Chess Openings (ECO A91), reached after 9 half-moves: 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nh3.
1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nh3
No further variations branch from this position in our database. To explore neighbouring ideas: