Ruy Lopez - Berlin defence - Trifunovic variation
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 d5
White moves the king's pawn to e4. Black moves the king's pawn to e5. White develops the knight to f3.
Black develops the knight to c6. White develops the light-squared bishop to b5. Black transfers the knight to f6.
White castles kingside. Black captures with the knight on e4. White advances the queen's pawn to d4.
Black develops the dark-squared bishop to e7. White moves the queen to e2. Black plays the queen's pawn to d5.