Chess puzzle (Crushing)
Moves: 1. e4 d5 2. exd5 e5 3. Nc3 Nf6 4. Bc4 Bc5 5. h3 Bf5 6. d3 Nbd7 7. a3 Qe7 8. Be3
O-O-O 9. Bxc5 Qxc5 10. Qd2 Nb6 11. Bb3 Nbxd5 12. Nxd5 Nxd5 13. O-O-O Be6 14.
Nf3 Nf4 15. g3 Nxd3+ 16. Kb1 Nxb2 17. Qe2 Nxd1 18. Rxd1 Bxb3 19. cxb3 Qxa3 20.
Nd2 f6 21. Qc4 Rd7 22. Rc1 Rhd8 23. Rc2 c6 24. Ra2 Qd6 25. Rc2 a6 26. Qg4 g6
27. Ka2 f5 28. Qe2 e4 29. Nc4 Qc7 30. Qe3 Kb8 31. h4 Rd3 32. Qc5 Rd1 33. Nb6
R8d5 34. Qb4 Rb5 35. Qf8+ Ka7 36. Nc8+ Ka8 37. Nb6+ Ka7 38. Nc8+ Ka8 39. Nd6+
Ka7 40. Nxb5+ *
Position (FEN): 5Q2/kpq4p/p1p3p1/1N3p2/4p2P/1P4P1/K1R2P2/3r4 b - - 0 40
Black to move.
Themes:  Endgame  
Puzzle rating: 1333
Best move: axb5