Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 cxd4 5. Qxd4 Nc6 6. Bb5 Bd7 7. Bxc6 bxc6 8.
O-O Ne7 9. Bg5 Qb6 10. Qxb6 axb6 11. a3 h6 12. Bh4 Nf5 13. Bg3 Nxg3 14. hxg3 c5
15. Nc3 Bc6 16. b4 d4 17. Ne2 g6 18. Rfb1 Be7 19. Nf4 g5 20. Nh5 O-O 21. Nh2
Kh7 22. Ng4 Kg6 23. Ngf6 Bxf6 24. Nxf6 Kf5 25. b5 Be8 26. Re1 Bxb5 27. g4+ Kg6
28. Ne4 Bc4 29. Nd6 Bd5 30. Reb1 Rfb8 31. a4 Bc6 32. a5 b5 33. a6 Rd8 34. Nxb5
Be4 35. Ra2 f5 36. Nd6 Bd5 37. gxf5+ exf5 38. Ra5 Be4 39. Rb6 Kh5 40. Nxe4 fxe4
41. e6 d3 42. cxd3 exd3 43. Ra1 c4 44. Rc6 Rdc8 45. Rxc8 Rxc8 46. a7 c3 47. Kf1
c2 48. Ke1 c1=Q+ 49. Rxc1 Rxc1+ 50. Kd2 Rc8 51. Kxd3 Kg6 52. Kd4 Kf6 53. Kd5
Rd8+ 54. Kc6 Kxe6 55. Kb7 Rd7+ 56. Kb8 Rd8+ 57. Kb7 Rd7+ 58. Kb8 Rxa7 59. Kxa7
Kf5 60. Kb6 Kf4 61. Kc5 h5 62. Kd4 g4 63. Kd3 h4 64. Ke2 h3 65. g3+ Ke4 66. Kf1
Kf3 67. Kg1 Ke2 68. f4 Kf3 69. f5 Kxg3 70. f6 h2+ 71. Kh1 Kh3 72. f7 g3 73.
f8=Q *
Position (FEN): 5Q2/8/8/8/8/6pk/7p/7K b - - 0 73
Black to move.
Themes: Advanced Pawn Endgame, Queen Endgame Mate in 1 
Puzzle rating: 665
Best move: g2#