Chess puzzle (Crushing)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. Nc3 Bd7 5. Bxc6 Bxc6 6. d3 h6 7. O-O Nf6 8. a4
Be7 9. a5 a6 10. b4 Nd7 11. Nd5 O-O 12. Bb2 Bxd5 13. exd5 Nf6 14. c4 c6 15.
dxc6 bxc6 16. c5 d5 17. Bxe5 Nd7 18. Bc3 Bf6 19. d4 Be7 20. Ne5 Qc7 21. f4 Nf6
22. f5 Ne4 23. Bd2 Bf6 24. Bf4 Qc8 25. Qg4 Bg5 26. Bxg5 Nxg5 27. Rf4 f6 28. Nf3
Nxf3+ 29. Rxf3 Rb8 30. Rg3 Rf7 31. Rb1 Rbb7 32. Rgb3 Qe8 33. Qg3 Qe4 34. Qd3
Rfe7 35. Qxe4 Rxe4 36. Kf2 Rxd4 37. Ke3 Rdxb4 *
Position (FEN): 6k1/1r4p1/p1p2p1p/P1Pp1P2/1r6/1R2K3/6PP/1R6 w - - 0 38
White to move.
Themes:  Endgame, Rook Endgame  
Puzzle rating: 400
Best move: Rxb4