Alekhine's defence - Kmoch variation
1. e4 Nf6 2. e5 Nd5 3. Bc4 Nb6 4. Bb3 c5 5. d3
White pushes the king's pawn to e4. Black develops the knight to f6. White moves the king's pawn to e5.
Black moves the knight to d5. White develops the light-squared bishop to c4. Black transfers the knight to b6.
White moves the light-squared bishop to b3. Black pushes the c-pawn to c5. White moves the queen's pawn to d3.