Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. Nc3 Ne7 5. Nd5 g6 *
Position (FEN): r1bqkb1r/ppp1np1p/2np2p1/1B1Np3/4P3/5N2/PPPP1PPP/R1BQK2R w KQkq - 0 6
White to move.
Themes:  Opening Mate in 1 
Puzzle rating: 1223
Best move: Nf6#