Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Harrwitz_Attack
Moves: 1. d4 d5 2. c4 e6 3. Bf4 Nf6 4. Nc3 c6 5. e3 Bd6 6. Bg3 O-O 7. Nf3 b6 8. Bd3
Bb7 9. Qc2 Bxg3 10. hxg3 c5 11. g4 cxd4 12. Bxh7+ Nxh7 *
Position (FEN): rn1q1rk1/pb3ppn/1p2p3/3p4/2Pp2P1/2N1PN2/PPQ2PP1/R3K2R w KQ - 0 13
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 813
Best move: Qxh7#