Chess puzzle (Checkmate)
Moves: 1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. O-O Nd7 5. d4 e6 6. Ne5 Nxe5 7. dxe5 Bc5 8. h3
Bh5 9. Kh2 Qb6 10. f4 Bg6 11. c3 a5 12. Qb3 Qc7 13. Nd2 h5 14. e4 a4 15. Qd1
dxe4 16. Nxe4 Bxe4 17. Bxe4 Nh6 18. Qf3 Ng4+ 19. Kg2 Nh6 20. Be3 Qb6 21. Bxc5
Qxc5 22. Qxh5 Qb5 23. Rf2 O-O-O 24. Qe2 Qb6 25. Rd1 Nf5 26. Bxf5 exf5 27. Rxd8+
Rxd8 28. Qc2 g6 29. Qxa4 Qe3 30. Qc2 Rd3 31. g4 Qxh3+ 32. Kg1 fxg4 33. e6 Rg3+
34. Rg2 Rxg2+ 35. Qxg2 Qe3+ 36. Kh2 Qxe6 37. Kg3 f5 38. Qd2 Qd5 39. Qe3 Qd7 40.
b4 g5 41. fxg5 Qd6+ 42. Qf4 Qd3+ 43. Kh4 *
Position (FEN): 2k5/1p6/2p5/5pP1/1P3QpK/2Pq4/P7/8 b - - 4 43
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 752
Best move: Qh3#