Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 cxd4 6. cxd4 Bg4 7. Be2 e6 8. O-O
Qb6 9. b3 Bxf3 10. Bxf3 Qxd4 11. Qc2 Qxa1 12. Nc3 Nd4 13. Qd2 Nxf3+ 14. gxf3
Bb4 15. Bb2 Bxc3 16. Bxc3 Qxf1+ 17. Kxf1 Ne7 18. Bb4 Nc6 19. Bd6 Rd8 20. b4 f6
21. f4 g5 22. fxg5 fxe5 23. Bc5 Kd7 24. b5 Ne7 25. Bxa7 b6 26. Bxb6 Rb8 27. Qa5
Ra8 28. Ba7 Rhg8 29. b6 Nc6 30. Qb5 Kd6 31. a4 Rxg5 32. a5 Rg7 33. a6 Nxa7 34.
bxa7 Rgxa7 35. Qb6+ Ke7 36. Qc5+ Kf6 37. Qc2 Kg7 38. Qe2 Rxa6 39. Qxe5+ Kh6 40.
Qf6+ Kh5 41. h4 R8a7 *
Position (FEN): 8/r6p/r3pQ2/3p3k/7P/8/5P2/5K2 w - - 1 42
White to move.
Themes:  Endgame, Queen and Rook Endgame Mate in 1 
Puzzle rating: 846
Best move: Qg5#