Voir : 12 24 Tous A90 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 - Dutch Defense: Classical Variation (1) Dutch Defense: Classical Variation (A90) Coups: 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2
