Chess puzzle (Crushing)
Moves: 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bd3 c5 6. O-O Be6 7. Re1 Be7 8.
Ng5 Bg4 9. f3 Bh5 10. dxc5 O-O 11. Be3 Nc6 12. c3 h6 13. Nh3 Qc7 14. Nf4 Ne5
15. Nxh5 Nxh5 16. Bd4 Nxd3 17. Qxd3 Bxc5 18. Nd2 Qb6 19. Nb3 Bxd4+ 20. Qxd4
Qxd4+ 21. Nxd4 Rfe8 22. Kf2 Nf4 23. Red1 a6 24. g3 Ne6 25. Nf5 Rad8 26. Rd2 Rd7
27. Re1 Red8 28. Nd4 Rd6 29. a4 Nc5 30. a5 Kf8 31. Rde2 g6 32. h4 Kg7 33. Re7
R8d7 34. Rxd7 Rxd7 35. Re3 Rc7 36. Re8 Nd3+ 37. Ke3 Nxb2 38. Ne2 Nc4+ 39. Kd4
Nxa5 40. Kxd5 Kf6 41. Re4 b6 42. c4 Nb3 43. Nd4 Nc5 44. Re8 Nd3 45. Nc6 Rd7+
46. Ke4 Nc5+ 47. Ke3 Rd3+ 48. Ke2 Rc3 49. Rb8 Na4 50. Ra8 Nc5 51. Rb8 Rb3 52.
Nd4 a5 *
Position (FEN): 1R6/5p2/1p3kpp/p1n5/2PN3P/1r3PP1/4K3/8 w - - 0 53
White to move.
Themes:  Endgame  
Puzzle rating: 1214
Best move: Nxb3