Four knights - Rubinstein counter-gambit - Bogolyubov variation
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Nxe5 Qe7 6. f4
White moves the king's pawn to e4. Black advances the king's pawn to e5. White develops the knight to f3.
Black develops the knight to c6. White jumps the knight to c3. Black moves the knight to f6.
White develops the light-squared bishop to b5. Black moves the knight to d4. White captures with the knight on e5.
Black deploys the queen to e7. White moves the f-pawn to f4.