Chess puzzle (Advantage)
Moves: 1. d4 d5 2. a3 Nc6 3. Nf3 Nf6 4. Bf4 e6 5. e3 Be7 6. c3 O-O 7. Nbd2 Bd6 8. Bg3
Ne4 9. Bd3 f5 10. Bxd6 Nxd6 11. Qc2 Ne4 12. Bxe4 dxe4 13. Ne5 Nxe5 14. dxe5 c5
15. f4 exf3 16. Nxf3 b5 17. Rd1 Qe7 18. O-O Bb7 19. Rd2 Qf7 20. Qb3 a6 21. Rd6
Rfe8 22. Rf2 Qg6 23. Rd7 Bd5 24. Rxd5 exd5 25. Qxd5+ Kh8 26. Qxc5 f4 27. Nd2
Rac8 28. Qd4 Red8 29. Qxf4 Kg8 30. g3 Rf8 31. Qe4 Qxe4 32. Rxf8+ Kxf8 33. Nxe4
Re8 34. Kf2 Rxe5 35. Kf3 Kf7 36. Nd6+ Ke6 37. Nb7 Rd5 38. Ke2 h5 39. Na5 g5 40.
Nc6 h4 41. Nd4+ Ke7 42. g4 a5 43. Nc6+ Kf6 44. Nxa5 Ke5 45. Nc6+ Kd6 46. Nd4
Ke5 47. h3 Ke4 48. b3 Rc5 49. Kd2 Rc8 50. b4 Rf8 51. Nxb5 *
Position (FEN): 5r2/8/8/1N4p1/1P2k1Pp/P1P1P2P/3K4/8 b - - 0 51
Black to move.
Themes:  Endgame  
Puzzle rating: 1340
Best move: Rf2+