Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Bg5 e6 3. e4 h6 4. Bxf6 Qxf6 5. Nc3 a6 6. Qd2 Bb4 7. a3 Ba5 8. e5
Qe7 9. Nf3 d6 10. Bd3 Bd7 11. O-O c5 12. exd6 Bxc3 13. Qxc3 cxd4 14. Qxd4 Qf6
15. Be4 Nc6 16. Qxf6 gxf6 17. c4 Na5 18. Rac1 Rc8 19. c5 Nb3 20. Bxb7 Rxc5 21.
Rc3 Rxc3 22. bxc3 a5 23. Rb1 a4 24. Nd4 Nd2 25. Rb4 O-O 26. c4 e5 27. Nf3 Nb3
28. Bd5 Rd8 29. Rb6 e4 30. Ne1 f5 31. Nc2 Kg7 32. g3 Kf6 33. Ne3 Ke5 34. Bxf7
Be6 35. Rb5+ Kf6 36. Bxe6 Kxe6 37. Nxf5 Rc8 38. Ne3 Kxd6 39. Rd5+ Ke6 40. Rh5
Nd2 41. Rxh6+ Ke5 42. Ra6 Rb8 43. Rxa4 Rb1+ 44. Kg2 Nf3 45. Ng4+ Ke6 46. c5
Rg1+ 47. Kh3 Kf5 48. Ne3+ Ke5 49. Rc4 Rh1 50. c6 Rxh2+ 51. Kg4 Rh8 52. c7 Rg8+
53. Kh3 Rh8+ 54. Kg2 Rh2+ 55. Kf1 Rh1+ 56. Ke2 *
Position (FEN): 8/2P5/8/4k3/2R1p3/P3NnP1/4KP2/7r b - - 8 56
Black to move.
Themes:  Endgame Hook Mate, Mate in 1 
Puzzle rating: 1261
Best move: Re1#