Chess puzzle (Crushing)
Moves: 1. e4 d6 2. d4 c6 3. Nc3 h6 4. Bc4 Qc7 5. Bf4 Nd7 6. e5 e6 7. Nf3 b6 8. a4 Bb7
9. h3 g5 10. Be3 Bg7 11. Bb3 dxe5 12. dxe5 Nxe5 13. Bd4 Nxf3+ 14. gxf3 e5 15.
Be3 f5 16. Qe2 O-O-O 17. Be6+ Kb8 18. Bxf5 Nf6 19. Ne4 Nxe4 20. Bxe4 c5 21. Rg1
Bxe4 22. fxe4 Bf6 23. b3 Qc6 24. c4 Qxe4 25. Rg4 Qd3 26. Qxd3 Rxd3 27. Rb1 Rhd8
28. Ke2 h5 29. Rgg1 R3d6 30. Rg3 Rf8 31. Bxg5 Bxg5 32. Rxg5 Rdf6 33. Rf1 Rf5
34. Rxf5 Rxf5 35. Ke3 Rf4 36. Rg1 Kb7 37. Rg5 Rh4 38. f3 e4 39. Rg3 Ka6 *
Position (FEN): 8/p7/kp6/2p4p/P1P1p2r/1P2KPRP/8/8 w - - 2 40
White to move.
Themes: Defensive Move Endgame, Rook Endgame  
Puzzle rating: 1907
Best move: f4