Chess puzzle (Crushing)
Moves: 1. Nf3 d5 2. d4 c5 3. c4 cxd4 4. Nxd4 dxc4 5. e3 e5 6. Nf3 Qxd1+ 7. Kxd1 Bg4 8.
Bxc4 e4 9. h3 Bxf3+ 10. gxf3 exf3 11. Bd5 Nc6 12. Bxf3 Nf6 13. Nc3 Bb4 14. Bd2
O-O-O 15. Kc2 Ne5 16. Be2 Kb8 17. a3 Ba5 18. b4 Bb6 19. Na4 Rc8+ 20. Kb3 Rhd8
21. Bc3 Ned7 22. Rhg1 Nd5 23. Bxg7 f6 24. Bh6 Bc7 25. Rg7 Be5 26. Bc4 N7b6 27.
Bxd5 Rxd5 28. Rag1 Nxa4 29. Kxa4 b5+ 30. Ka5 Rc3 31. Rg8+ Kb7 32. R1g7+ Bc7+
33. Rxc7+ Rxc7 34. Bf4 Rd3 35. Bxc7 Rxa3+ 36. Kxb5 Kxc7 37. Rg7+ Kd6 38. Rxh7
Ra2 39. f4 Re2 40. Rxa7 Rxe3 41. Ra6+ Ke7 42. h4 Re4 43. Kc5 Rxf4 44. b5 Rxh4
45. b6 Rh1 *
Position (FEN): 8/4k3/RP3p2/2K5/8/8/8/7r w - - 1 46
White to move.
Themes: Advanced Pawn Endgame, Rook Endgame  
Puzzle rating: 1582
Best move: b7