Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Colle_System
Moves: 1. d4 Nf6 2. e3 e6 3. Nf3 d5 4. c4 Bb4+ 5. Bd2 Bxd2+ 6. Nbxd2 O-O 7. Bd3 Nc6 8.
a3 b6 9. O-O dxc4 10. Bxc4 a5 11. e4 Bb7 12. e5 Nd5 13. Ba2 Nf4 14. Bb1 Ba6 15.
Re1 Nxd4 16. Nxd4 Qxd4 17. Qc2 Ne2+ 18. Kh1 Nf4 *
Position (FEN): r4rk1/2p2ppp/bp2p3/p3P3/3q1n2/P7/1PQN1PPP/RB2R2K w - - 4 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 967
Best move: Qxh7#