Chess puzzle (Crushing)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. dxe5 Nxe5 6. Bxd7+ Qxd7 7. Nxe5 dxe5
8. Qxd7+ Kxd7 9. O-O Rd8 10. Rd1+ Kc8 11. Rxd8+ Kxd8 12. Be3 a6 13. Nd2 Nf6 14.
f3 h6 15. Rd1 Kc8 16. Nc4 Nd7 17. a4 f6 18. c3 Bc5 19. Kf2 Bxe3+ 20. Nxe3 Nc5
21. a5 Rd8 22. Rxd8+ Kxd8 23. Nf5 Ne6 24. h4 Ke8 25. Ke3 Kf7 26. h5 Nf4 27. g4
Ng2+ 28. Kd3 Ne1+ 29. Ke2 Nc2 30. Ne3 Na1 31. Nd5 c6 32. Ne3 Nb3 33. Nc4 Ke7
34. Kd3 Nc5+ 35. Kc2 Ne6 36. b4 Ng5 37. Nd2 Kd7 38. Kd3 Kc7 39. Kc4 Kd6 40. Kd3
Kc7 41. Ke3 Kd7 42. Nb3 Kc7 43. Nc5 b6 44. Nxa6+ *
Position (FEN): 8/2k3p1/Npp2p1p/P3p1nP/1P2P1P1/2P1KP2/8/8 b - - 0 44
Black to move.
Themes: Defensive Move Endgame, Knight Endgame  
Puzzle rating: 940
Best move: Kb7