Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 e6 3. Bc4 a6 4. O-O b5 5. Be2 d6 6. d4 cxd4 7. Nxd4 Bb7 8. Bf3
Nc6 9. Nxc6 Bxc6 10. Nc3 Qc7 11. e5 d5 12. Bf4 b4 13. Ne2 Bc5 14. Nd4 Bxd4 15.
Qxd4 Bb5 16. Rfe1 Ne7 17. c3 bxc3 18. bxc3 Ng6 19. Be3 Qxe5 20. Qb6 Qb8 21. Qc5
Qc8 22. Qb4 Qc4 23. Qd6 Rd8 24. Qa3 Rd7 25. Be2 Qc6 26. Bxb5 axb5 27. Bc5 Rc7
28. Bb4 Kd7 29. Qc1 Ra8 30. a3 Qc4 31. Qg5 Qf4 32. Qh5 Qh6 33. Qf3 Qf4 34. Qe2
Rb8 35. g3 Qc4 36. Qh5 h6 37. Qf3 Ke8 38. h4 Ne7 39. Qh5 Nc6 40. Rac1 Nxb4 41.
cxb4 Qxc1 42. Rxc1 Rxc1+ 43. Kg2 Rc3 44. Qe5 Rbc8 45. Qxg7 Rxa3 46. Qxh6 Ra4
47. Qh8+ Kd7 48. Qf6 Rf8 49. Qg7 Ke7 50. Qc3 Rd8 51. Qc5+ Rd6 52. Qxb5 Raa6 53.
Qb7+ Kf6 54. b5 Rab6 55. Qc7 d4 56. Qc1 d3 *
Position (FEN): 8/5p2/1r1rpk2/1P6/7P/3p2P1/5PK1/2Q5 w - - 0 57
White to move.
Themes:  Endgame, Queen and Rook Endgame Dovetail Mate, Mate in 1 
Puzzle rating: 1528
Best move: Qg5#