Chess puzzle (Checkmate)
Moves: 1. c4 c5 2. Nc3 e5 3. g3 d6 4. Bg2 Nf6 5. e3 Be7 6. Nge2 O-O 7. O-O Qd7 8. d4
cxd4 9. exd4 exd4 10. Nxd4 Nc6 11. Nxc6 bxc6 12. Qa4 Bb7 13. Bg5 Qe8 14. Rfe1
Qd7 15. Qc2 d5 16. Rad1 Qg4 17. Bxf6 Bxf6 18. cxd5 Bxc3 19. Qxc3 cxd5 20. Re7
Rac8 21. Qd2 Bc6 22. Rxa7 Rfd8 23. Ra3 d4 24. Bxc6 Rxc6 25. Re3 g6 26. Rd3 Rcd6
27. Qb4 Qe6 28. Rxd4 Rxd4 29. Rxd4 Rxd4 30. Qxd4 Qxa2 31. Qd8+ Kg7 32. Qb6 h6
33. b4 Qa1+ 34. Kg2 Qa8+ 35. Kg1 Qa1+ 36. Kg2 Qa8+ 37. Kh3 Qc8+ 38. Kg2 Qa8+
39. Kh3 Qc8+ 40. Kh4 g5+ 41. Kh5 *
Position (FEN): 2q5/5pk1/1Q5p/6pK/1P6/6P1/5P1P/8 b - - 1 41
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 620
Best move: Qh3#