Chess puzzle (Checkmate)
Opening: Kings_Pawn_Game, Kings_Pawn_Game_Leonardis_Variation
Moves: 1. e4 e5 2. d3 Nc6 3. c4 Nd4 4. h3 Bc5 5. Nf3 Nf6 6. Nxd4 Bxd4 7. Be2 d6 8. O-O
h5 9. Kh1 g5 10. f4 g4 11. h4 g3 12. Nc3 Nxe4 13. Nxe4 *
Position (FEN): r1bqk2r/ppp2p2/3p4/4p2p/2PbNP1P/3P2p1/PP2B1P1/R1BQ1R1K b kq - 0 13
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 508
Best move: Qxh4#