Chess puzzle (Equality)
Moves: 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Be7 5. h3 h6 6. Nf3 Nf6 7. c3 O-O 8. Be3
Re8 9. Nbd2 Nbd7 10. O-O Nf8 11. Re1 c6 12. Nf1 Be6 13. Ng3 Bd6 14. Ne5 N8d7
15. f4 Nh7 16. f5 Nxe5 17. fxe6 Rxe6 18. dxe5 Bxe5 19. Bxh7+ Kxh7 20. Qd3+ g6
21. Bd4 Bc7 22. Rxe6 fxe6 23. Re1 Qd6 24. Be5 Qe7 25. Bxc7 Qxc7 26. Rxe6 Qf7
27. Qe2 Kg8 28. Re7 Qf6 29. Qe6+ Qxe6 30. Rxe6 Kf7 31. Re2 Kf6 32. Nf1 Rd8 33.
g4 d4 34. cxd4 Rxd4 35. Kg2 a5 36. Ne3 c5 37. b3 a4 38. bxa4 Rxa4 39. Nd5+ Kf7
40. Nc3 Rd4 41. Nb5 Rd3 42. Rc2 b6 43. a4 Kf6 44. Rc3 Rxc3 45. Nxc3 Ke5 46. Kf3
Kd4 47. Nb5+ Kd3 48. Kf4 g5+ 49. Kf5 Kc4 50. Kg6 Kb4 51. Kxh6 Kxa4 52. Nc3+ Kb3
53. Ne4 c4 54. Kxg5 b5 55. h4 *
Position (FEN): 8/8/8/1p4K1/2p1N1PP/1k6/8/8 b - - 0 55
Black to move.
Themes: Defensive Move Endgame, Knight Endgame  
Puzzle rating: 1639
Best move: b4