Chess puzzle (Crushing)
Moves: 1. d4 d5 2. Nf3 Nc6 3. e3 Nf6 4. c4 dxc4 5. Bxc4 e5 6. Ng5 Bb4+ 7. Bd2 Bxd2+ 8.
Nxd2 O-O 9. dxe5 Nxe5 10. O-O Nxc4 11. Nxc4 Ne4 12. Nxe4 Qe7 13. Ng3 Qb4 14.
Qb3 Qc5 15. Rac1 Qb6 16. Qxb6 cxb6 17. Nd6 Be6 18. a3 Rab8 19. Rc7 Bd5 20. Rd1
Bc6 21. b4 Rfd8 22. Rxf7 Rd7 23. Rxd7 Bxd7 24. Nge4 Bc6 25. f3 Rd8 26. Kf2 a5
27. bxa5 bxa5 28. Ke2 b5 29. Rc1 Ba8 30. Nxb5 Rb8 31. a4 Kf7 32. Rc7+ Ke6 33.
Rxg7 Kd5 34. Rxh7 Kc4 35. Ra7 Kb4 36. Nec3 Rc8 37. h4 Bc6 38. Rc7 Bxb5+ 39. Kf2
Rxc7 40. Nxb5 Rb7 41. Nd6 Rd7 42. Ne4 Kxa4 43. h5 Rh7 44. g4 Kb4 45. Ke2 *
Position (FEN): 8/7r/8/p6P/1k2N1P1/4PP2/4K3/8 b - - 2 45
Black to move.
Themes: Defensive Move Endgame  
Puzzle rating: 1012
Best move: a4