Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O f6 6. d4 Bg4 7. dxe5 Qxd1 8.
Rxd1 fxe5 9. Nc3 Bd6 10. Be3 Ne7 11. h3 Bxf3 12. gxf3 O-O 13. Kg2 Ng6 14. Ne2
Nh4+ 15. Kh1 Rxf3 16. Ng1 Rf7 17. c4 c5 18. Rd5 b6 19. Rf1 Raf8 20. Bg5 Nf3 21.
Nxf3 Rxf3 22. Kg2 h6 23. Be3 g5 24. a3 a5 25. h4 gxh4 26. Bxh6 h3+ 27. Kg1 R8f6
28. Be3 Rg6+ 29. Kh1 Rxe3 30. fxe3 Kh7 31. Rg1 Rf6 32. Rg3 Rf1+ 33. Kh2 Rf2+
34. Kxh3 Rxb2 35. Rg2 Rb3 36. Rd1 Rxe3+ 37. Rg3 Rxe4 38. Rh1 Re2 39. Rg4 e4 40.
Rg5 Bf8 41. Kg4+ Bh6 42. Rgh5 Rg2+ 43. Kf5 Rg6 44. Kxe4 Kg7 45. Kd5 Rd6+ 46.
Ke5 a4 47. R1h3 Rg6 48. Kd5 Rd6+ 49. Ke5 Rg6 50. Kf5 Rf6+ 51. Ke4 c6 52. Ke5
Rg6 53. Ke4 Rd6 54. Rg3+ Kf7 55. Rf5+ Ke7 56. Ke5 *
Position (FEN): 8/4k3/1ppr3b/2p1KR2/p1P5/P5R1/8/8 b - - 9 56
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1299
Best move: Re6#