Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nc6 5. exd5 exd5 6. Bb5 cxd4 7. O-O Bd6 8.
Re1+ Ne7 9. Nb3 O-O 10. Nfxd4 Qc7 11. h3 a6 12. Bf1 Ng6 13. Qh5 Nce5 14. Bd2
Bd7 15. Rad1 Rfe8 16. Nf5 Bf8 17. Nbd4 Nc4 18. Bc3 b5 19. Nf3 h6 20. Rxe8 Rxe8
21. Rxd5 Be6 22. Rd1 Qc5 23. Ng3 Nf4 24. Qxc5 Bxc5 25. b3 Na3 26. Bd3 Nxd3 27.
cxd3 Bd5 28. d4 Bd6 29. Ne5 f6 30. Nd3 Rc8 31. Bb4 Bxg3 32. fxg3 Nc2 33. Rc1
Rc6 34. Bc5 Ne3 35. Nb4 Re6 36. Nxd5 Nxd5 37. Kf2 Kf7 38. a4 Re3 39. axb5 axb5
40. b4 Rb3 41. Ra1 Nxb4 42. Ra7+ Ke6 43. Rxg7 Rb2+ 44. Kf3 Nd3 45. Rb7 Ne1+ 46.
Kg4 Nxg2 47. Rb6+ Kf7 48. Kf5 Ne3+ 49. Ke4 Nc4 50. Rb7+ Ke6 *
Position (FEN): 8/1R6/4kp1p/1pB5/2nPK3/6PP/1r6/8 w - - 8 51
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 998
Best move: d5#