Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bc5 4. h3 h5 5. Bc4 Nc6 6. a3 Na5 7. Ba2 Nc6 8. d3
b6 9. Na4 Bd6 10. Nc3 Bb7 11. Nd5 Bc5 12. Bg5 Be7 13. Nxf6+ Bxf6 14. Qd2 Nd4
15. Bxf6 Qxf6 16. Ng5 O-O 17. c3 Nc6 18. Bd5 d6 19. O-O Rab8 20. f4 Ne7 21.
Bxb7 Rxb7 22. Qf2 c5 23. h4 Nc6 24. f5 Qh6 25. Rad1 f6 26. Ne6 Re8 27. Rfe1 Nd8
28. Nxd8 Rxd8 29. Re3 Kh7 30. Rg3 Rg8 31. Rg6 Qf4 32. Rf1 Qxf2+ 33. Rxf2 a5 34.
g4 hxg4 35. Rxg4 Rh8 36. Rh2 Kg8 37. h5 g5 38. hxg6 Rxh2 39. Kxh2 b5 40. Rh4 b4
41. axb4 axb4 42. c4 Ra7 43. Kg3 Ra2 44. Rh2 Ra3 45. Rd2 Ra1 46. Kf2 Ra4 47.
Ke2 Ra2 48. Kd1 Ra1+ 49. Kc2 Rg1 50. Kb3 Ra1 51. Rh2 Ra8 52. Rh7 Rf8 53. Rd7
Rc8 54. Rxd6 Kg7 55. Rd7+ Kh6 56. Rh7+ Kg5 57. g7 Rg8 58. Ka4 Kf4 59. Kb5 Ke3
60. Kxc5 Kxd3 61. Kxb4 Kxe4 62. c5 Kxf5 63. c6 e4 64. c7 e3 65. Rh8 e2 66. Rh1
Kg6 67. Rg1+ Kf7 68. Kb5 f5 69. Kb6 *
Position (FEN): 6r1/2P2kP1/1K6/5p2/8/8/1P2p3/6R1 b - - 1 69
Black to move.
Themes: Defensive Move Endgame, Rook Endgame  
Puzzle rating: 2105
Best move: f4