Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e5 7. Nb3 Be7 8. Bg5
b5 9. Bxf6 Bxf6 10. Bd5 Ra7 11. O-O O-O 12. a4 b4 13. Ne2 a5 14. c3 Na6 15. Qd2
Bg5 16. Qd3 Nc5 17. Nxc5 dxc5 18. g3 Ba6 19. c4 Kh8 20. f4 exf4 21. gxf4 Bh6
22. Ng3 Qh4 23. Qf3 g6 24. Rad1 Bg7 25. e5 Bc8 26. Qe3 Rc7 27. Ne4 Bg4 28. Rd2
Bh3 29. Rf3 Bg4 30. Rff2 Bf5 31. Nxc5 Re8 32. Ne4 f6 33. Nd6 Ree7 34. Nxf5 gxf5
35. e6 Bh6 36. Kh1 Rg7 37. Qb6 Bxf4 38. Qb8+ Rg8 39. Qxg8+ Kxg8 40. e7+ Kg7 41.
e8=Q Bxd2 42. Rxd2 Kh6 43. Qf8+ Rg7 44. Re2 Qd4 45. Re1 f4 46. b3 Qf2 47. Qxf6+
Rg6 48. Qf8+ Rg7 49. Re6+ Kh5 50. Qf5+ Rg5 51. Qxh7+ Kg4 52. h3+ Kg3 53. Qd3+
Kh4 54. Qf3 *
Position (FEN): 8/8/4R3/p2B2r1/PpP2p1k/1P3Q1P/5q2/7K b - - 4 54
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1243
Best move: Rg1#