Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Mason_Variation
Moves: 1. d4 d5 2. Bf4 e6 3. e3 Be7 4. Nf3 Nf6 5. Bd3 O-O 6. c3 c5 7. Nbd2 c4 8. Bb1
b5 9. Ne5 Bd6 10. g4 Bxe5 11. dxe5 Nfd7 12. Qc2 g6 13. h4 Nc5 14. h5 Nd3+ 15.
Ke2 g5 16. Bg3 h6 17. Nf3 Bb7 18. Ne1 Nc5 *
Position (FEN): rn1q1rk1/pb3p2/4p2p/1pnpP1pP/2p3P1/2P1P1B1/PPQ1KP2/RB2N2R w - - 4 19
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1023
Best move: Qh7#