Chess puzzle (Checkmate)
Opening: Blackmar-Diemer_Gambit, Blackmar-Diemer_Gambit_Teichmann_Variation
Moves: 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bg4 6. h3 Bxf3 7. Qxf3 c6 8.
g4 e6 9. g5 Nd5 10. Bd3 Bb4 11. O-O O-O 12. Ne4 Be7 13. a3 Nd7 14. c3 Rc8 15.
Qh5 g6 16. Qh6 b5 17. h4 Re8 18. Rxf7 Bf8 *
Position (FEN): 2rqrbk1/p2n1R1p/2p1p1pQ/1p1n2P1/3PN2P/P1PB4/1P6/R1B3K1 w - - 1 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1089
Best move: Qxh7#