Chess puzzle (Checkmate)
Moves: 1. d4 g6 2. Bf4 Bg7 3. e3 Nf6 4. Nf3 O-O 5. Be2 d6 6. O-O Re8 7. c3 b6 8. Nbd2
Bb7 9. Re1 Nbd7 10. Rc1 e5 11. Bg5 h6 12. Bxf6 Qxf6 13. dxe5 dxe5 14. e4 Rad8
15. Qc2 Nc5 16. Bf1 Ne6 17. g3 h5 18. Kg2 Bh6 19. Rcd1 a5 20. b4 axb4 21. cxb4
Nd4 22. Nxd4 Rxd4 23. Nf3 Rxd1 24. Qxd1 Rd8 25. Qc2 Rd7 26. a4 Bf8 27. Qc3 Bd6
28. Bb5 Rd8 29. Qc4 Qe7 30. Rd1 Ra8 31. Bc6 Bxc6 32. Qxc6 Qe8 33. Qxe8+ Rxe8
34. b5 Ra8 35. Ra1 f6 36. Nd2 Kf7 37. Nc4 Bc5 38. a5 bxa5 39. Rxa5 Rb8 40. f4
exf4 41. gxf4 g5 42. Kf3 g4+ 43. Kg3 Kg6 44. e5 f5 45. Ra6+ Kg7 46. Rc6 Rxb5
47. Rxc7+ Kg6 48. Nd6 Rb3+ 49. Kg2 Rb2+ 50. Kg3 h4+ 51. Kxh4 *
Position (FEN): 8/2R5/3N2k1/2b1Pp2/5PpK/8/1r5P/8 b - - 0 51
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1965
Best move: Bf2#