Chess puzzle (Crushing)
Moves: 1. e4 e6 2. d4 d5 3. exd5 Qxd5 4. Nf3 Nf6 5. Nc3 Bb4 6. Bd2 Qd8 7. a3 Be7 8.
Bd3 b6 9. O-O Bb7 10. Re1 Nbd7 11. b4 Nd5 12. Nxd5 Bxd5 13. Qe2 Nf6 14. Ne5 h6
15. Bb5+ Kf8 16. Nc6 Bxc6 17. Bxc6 Rb8 18. a4 Qd6 19. b5 Nd5 20. Bxd5 Qxd5 21.
c3 Bg5 22. Red1 Bxd2 23. Rxd2 Ke7 24. Rb2 Rhd8 25. a5 Kf8 26. axb6 axb6 27. Ra7
Qd6 28. h3 Ra8 29. Rba2 Rxa7 30. Rxa7 Rc8 31. Qf3 Qd5 32. Qg3 Qd6 33. Qxd6+
cxd6 34. Ra3 Ke7 35. f4 f5 36. Kf2 Kf6 37. Ke3 e5 38. dxe5+ dxe5 39. fxe5+ Kxe5
40. Kd3 Rd8+ 41. Kc2 Rd5 42. Rb3 Kf4 43. c4 Re5 44. Rf3+ Ke4 45. Kb3 g5 46. Kb4
h5 47. Rc3 Rc5 48. Rg3 g4 49. hxg4 hxg4 50. Rc3 *
Position (FEN): 8/8/1p6/1Pr2p2/1KP1k1p1/2R5/6P1/8 b - - 1 50
Black to move.
Themes: Defensive Move Endgame, Rook Endgame  
Puzzle rating: 1677
Best move: f4