Dutch - Leningrad - Basman system
1. d4 f5 2. g3 g6 3. Bg2 Bg7 4. Nf3 c6 5. O-O Nh6
White advances the queen's pawn to d4. Black plays the f-pawn to f5. White moves the g-pawn to g3.
Black moves the g-pawn to g6. White develops the light-squared bishop to g2. Black develops the dark-squared bishop to g7.
White develops the knight to f3. Black moves the c-pawn to c6. White castles kingside.
Black develops the knight to h6.