Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nc3 Bf5 3. f3 e6 4. e4 Bg6 5. e5 h6 6. Be3 Nc6 7. Bb5 Qd7 8. Qe2 a6
9. Ba4 b5 10. Bb3 Bb4 11. a4 Bxc3+ 12. bxc3 b4 13. cxb4 Nxb4 14. Qd2 a5 15. c3
Nd3+ 16. Kd1 Qc6 17. Ne2 Ne7 18. g4 O-O 19. h4 Qb6 20. Rb1 Qc6 21. Ng3 Nf2+ 22.
Qxf2 Bxb1 23. g5 hxg5 24. hxg5 Qxc3 25. Bc2 Bxc2+ 26. Qxc2 Qxe3 *
Position (FEN): r4rk1/2p1npp1/4p3/p2pP1P1/P2P4/4qPN1/2Q5/3K3R w - - 0 27
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 791
Best move: Qh7#