Chess puzzle (Advantage)
Moves: 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. Nc3 Bf5 5. e3 Bg7 6. Bd3 Qd7 7. O-O O-O 8. e4
Bg4 9. h3 Bxf3 10. Qxf3 e5 11. dxe5 dxe5 12. Rd1 c6 13. Be3 Qe7 14. a3 Nbd7 15.
b4 Rfd8 16. c5 Nf8 17. Bc4 Ne6 18. Bxe6 Qxe6 19. Rxd8+ Rxd8 20. Rd1 Rd7 21.
Rxd7 Qxd7 22. Qe2 Qe6 23. Qd3 Nd7 24. Qd6 Qxd6 25. cxd6 b6 26. b5 c5 27. Nd5
Bf8 28. Bg5 Bxd6 29. Bd8 c4 30. a4 Kf8 31. a5 Bc5 32. axb6 axb6 33. Kf1 Ke8 34.
Bc7 f6 35. Ke2 Kf7 36. f3 Ke6 37. Kd2 Bd4 38. g4 h5 39. Ne3 c3+ 40. Ke2 hxg4
41. hxg4 Kf7 42. Nd5 Ke6 43. Kd3 Nc5+ 44. Kc2 Na4 45. Bd8 f5 46. gxf5+ gxf5 47.
Be7 fxe4 48. fxe4 Kf7 49. Bb4 Nc5 50. Bxc3 Bxc3 51. Nxc3 Kg6 52. Kd2 Nb3+ 53.
Kd3 Nd4 54. Kc4 Kg5 55. Nd5 Ne6 *
Position (FEN): 8/8/1p2n3/1P1Np1k1/2K1P3/8/8/8 w - - 9 56
White to move.
Themes:  Endgame, Knight Endgame  
Puzzle rating: 1039
Best move: Nxb6