Chess puzzle (Crushing)
Moves: 1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. d4 Bf5 5. Bd3 Qd7 6. Ne5 Qe6 7. O-O Nd7 8.
Re1 O-O-O 9. Qf3 Bxd3 10. Qxd3 f6 11. Nf3 Qd6 12. Bf4 Qxf4 13. Qc3+ Kb8 14. Na3
Rc8 15. Qa5 Qd6 16. c4 dxc4 17. Rac1 e5 18. dxe5 fxe5 19. Nxc4 Qc5 20. Qxc5
Nxc5 21. Nfxe5 Nh6 22. h3 g6 23. b4 b5 24. Na5 Bd6 25. Nec6+ Ka8 26. bxc5 Bc7
27. Re7 Bb8 28. Rd1 Rc7 29. Rdd7 Rhc8 30. Nxb8 Kxb8 31. Nc6+ Ka8 32. Na5 Rxd7
33. Rxd7 Nf5 34. c6 Kb8 35. Rb7+ Ka8 36. c7 Nd6 37. f4 *
Position (FEN): k1r5/pRP4p/3n2p1/Np6/5P2/7P/P5P1/6K1 b - - 0 37
Black to move.
Themes:  Endgame  
Puzzle rating: 985
Best move: Nxb7