Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. b4 cxb4 3. a3 bxa3 4. d4 g6 5. Bd3 Bg7 6. c3 d6 7. Ne2 Nf6 8. Nxa3
O-O 9. O-O Nc6 10. f4 e5 11. fxe5 dxe5 12. d5 Ne7 13. c4 Qb6+ 14. Kh1 Ng4 15.
Qe1 f5 16. exf5 Bxf5 17. Bxf5 Rxf5 18. Rxf5 Nxf5 19. h3 Nf2+ 20. Kh2 e4 21. Rb1
Be5+ 22. g3 Nd3 23. Rxb6 Nxe1 24. Rxb7 Nf3+ 25. Kg2 Ne1+ 26. Kh2 Nd3 27. Bf4
Bxf4 28. Nxf4 Nxf4 29. gxf4 e3 30. Nc2 e2 31. Ne1 a5 32. c5 a4 33. c6 Nd6 34.
Rb2 a3 35. Ra2 Ra5 36. Kg2 Rxd5 37. Rxa3 Rc5 38. Re3 Rxc6 39. Rxe2 Kf7 40. Nf3
Ra6 41. Ng5+ Kg8 42. Re7 Ra2+ 43. Kg1 Ra1+ 44. Kg2 Ra2+ 45. Kg1 h6 46. Ne6 Nf5
47. Rb7 Re2 48. Nd8 Re4 49. Rb8 Kg7 50. Rb7+ Kf6 *
Position (FEN): 3N4/1R6/5kpp/5n2/4rP2/7P/8/6K1 w - - 10 51
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 786
Best move: Rf7#