Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Exchange_Variation
Moves: 1. d4 d5 2. c4 Nf6 3. Nc3 e6 4. cxd5 Nxd5 5. e4 Nf6 6. e5 Nd5 7. Bd3 Bb4 8. Bd2
Bd7 9. Nf3 Nc6 10. O-O O-O 11. Bxh7+ Kxh7 12. Ng5+ Kg8 13. Qh5 f6 *
Position (FEN): r2q1rk1/pppb2p1/2n1pp2/3nP1NQ/1b1P4/2N5/PP1B1PPP/R4RK1 w - - 0 14
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 786
Best move: Qh7#