Chess puzzle (Checkmate)
Moves: 1. d4 a6 2. Nf3 b5 3. Bf4 Bb7 4. e3 e6 5. c4 bxc4 6. Bxc4 Ne7 7. Nc3 Ng6 8. Bg3
Nc6 9. O-O Na5 10. Bd3 c5 11. a3 cxd4 12. Nxd4 Nc6 13. Nxc6 Bxc6 14. Rc1 Be7
15. Ne4 Bh4 16. Nd6+ Ke7 17. Bxh4+ Nxh4 18. Ne4 f5 19. Qh5 Nxg2 20. Qg5+ Kf8
21. Qxg2 fxe4 22. Bxe4 Bxe4 23. Qxe4 h6 24. Rfd1 Qg5+ 25. Kf1 Rd8 26. Rc7 Qb5+
27. Kg1 Ke7 28. Qh4+ g5 29. Qd4 Rhg8 30. Kh1 g4 31. h3 gxh3 32. Qh4+ Qg5 33.
Qxh3 Qf6 34. Rg1 Qxf2 35. Rf1 Qxb2 36. Qh4+ Kd6 37. Qf4+ Ke7 38. Qh4+ Rg5 39.
Qxh6 Rh8 40. Qxh8 *
Position (FEN): 7Q/2Rpk3/p3p3/6r1/8/P3P3/1q6/5R1K b - - 0 40
Black to move.
Themes: Hanging Piece Endgame Mate in 1 
Puzzle rating: 725
Best move: Qxh8#