Chess puzzle (Crushing)
Moves: 1. e4 e5 2. Nf3 d6 3. Nc3 Nf6 4. Bc4 Be7 5. h3 O-O 6. d3 Nc6 7. Nd5 Nxd5 8.
Bxd5 Bd7 9. Be3 Qe8 10. a3 Bf6 11. Nd2 Be6 12. Bxe6 fxe6 13. Nc4 d5 14. Nd2 Nd4
15. Bxd4 exd4 16. exd5 exd5+ 17. Qe2 Qd7 18. O-O-O c5 19. Rhe1 Rfe8 20. Qf3
Rxe1 21. Rxe1 Qc6 22. Qf5 b5 23. Re6 Qd7 24. g4 Rd8 25. Ra6 Qxf5 26. gxf5 Rd7
27. Ra5 Rb7 28. Nb3 c4 29. Nc5 Rb6 30. Rxa7 cxd3 31. Nxd3 h6 32. Kd2 Bg5+ 33.
Kd1 Bf6 34. Kc1 Kf8 35. Nb4 Rd6 36. Rb7 Bh4 37. f3 Rf6 38. Rxb5 Rxf5 39. Rxd5
Rxf3 40. Rxd4 Rxh3 41. c4 Rh2 42. Kb1 Bf6 43. Rf4 Rxb2+ 44. Kc1 Rb3 45. Nd5
Rxa3 46. Nxf6 gxf6 47. Rxf6+ Kg7 48. Rc6 h5 49. Kd2 h4 50. Ke2 h3 51. Rb6 *
Position (FEN): 8/6k1/1R6/8/2P5/r6p/4K3/8 b - - 1 51
Black to move.
Themes: Defensive Move Endgame, Rook Endgame  
Puzzle rating: 2237
Best move: Ra1