Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. Qf3 Qg5 6. O-O Qxb5 7. a4 Qc5 8.
Qd3 b6 9. b3 Nf6 10. Ba3 Qc6 11. Bxf8 Rxf8 12. Qxd4 Bb7 13. Re1 O-O-O 14. c4
Rde8 15. d3 Nh5 16. Nc3 f5 17. Nb5 Kb8 18. Nc3 fxe4 19. dxe4 Rf6 20. Rad1 Ref8
21. f3 Nf4 22. Nd5 Ne6 23. Qe5 Qc5+ 24. Kh1 Bxd5 25. cxd5 Nf4 26. Rc1 Qd6 27.
Qc3 R6f7 28. b4 Rf6 29. a5 Rh6 30. Rc2 Nxd5 31. exd5 *
Position (FEN): 1k3r2/p1pp2pp/1p1q3r/P2P4/1P6/2Q2P2/2R3PP/4R2K b - - 0 31
Black to move.
Themes: Kingside Attack Endgame Mate in 1 
Puzzle rating: 811
Best move: Qxh2#