Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Queens_Knight_Variation
Moves: 1. d4 d5 2. c4 e6 3. Nc3 dxc4 4. e3 Bb4 5. Bxc4 Nf6 6. Qa4+ c6 7. Ne2 Bxc3+ 8.
bxc3 O-O 9. O-O a6 10. Qc2 b5 11. Bb3 Nbd7 12. Ng3 Bb7 13. Ba3 Qa5 14. Bxf8
Rxf8 15. Qd3 e5 16. Bc2 c5 17. Ne4 Nxe4 18. f3 Nxc3 *
Position (FEN): 5rk1/1b1n1ppp/p7/qpp1p3/3P4/2nQPP2/P1B3PP/R4RK1 w - - 0 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 473
Best move: Qxh7#