Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Three_Knights
Moves: 1. d4 Nf6 2. Nf3 d5 3. c4 dxc4 4. Nc3 e6 5. Bg5 Be7 6. e4 O-O 7. e5 Nd5 8. Bxe7
Qxe7 9. Bxc4 Nxc3 10. bxc3 c5 11. O-O cxd4 12. cxd4 Nc6 13. Rc1 Bd7 14. Bb3 Na5
15. Bc2 Bb5 16. Re1 Bc4 17. Bb1 Bd5 18. Qc2 Nc4 *
Position (FEN): r4rk1/pp2qppp/4p3/3bP3/2nP4/5N2/P1Q2PPP/1BR1R1K1 w - - 13 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 650
Best move: Qxh7#