Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. c3 e6 3. d4 d5 4. exd5 exd5 5. Nf3 Nf6 6. Be2 Bd6 7. O-O O-O 8. Bg5
h6 9. Bxf6 Qxf6 10. dxc5 Bxc5 11. Qxd5 Bb6 12. Nbd2 Nc6 13. Rfe1 Be6 14. Qd3
Rad8 15. Qc2 Rd7 16. Ne4 Qf4 17. Ng3 Rfd8 18. Rad1 Ne5 19. Rxd7 Rxd7 20. Rd1
Nxf3+ 21. Bxf3 Rxd1+ 22. Qxd1 Bxa2 23. Ne2 Qc4 24. Bxb7 Qc5 25. Nd4 Bd5 26.
Bxd5 Qxd5 27. Kf1 Qa2 28. Qd2 Qb1+ 29. Ke2 Qe4+ 30. Kf1 Qb1+ 31. Ke2 Qe4+ 32.
Kf1 Kh7 33. f3 Qe5 34. g3 Qd5 35. Kg2 g6 36. b4 a5 37. bxa5 Bxa5 38. Qd3 Qa2+
39. Kh3 Qa3 40. Ne2 Qc5 41. c4 Qh5+ 42. Kg2 Qc5 43. Qd5 Qc7 44. Nd4 Bb6 45. Nb5
Qe7 46. Nd6 Kg7 47. Ne4 f5 48. Nd6 Qe2+ 49. Kh3 Qf1+ 50. Kh4 g5+ 51. Kh5 *
Position (FEN): 8/6k1/1b1N3p/3Q1ppK/2P5/5PP1/7P/5q2 b - - 1 51
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 855
Best move: Qh3#