Chess puzzle (Crushing)
Moves: 1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Nf3 d6 5. c3 O-O 6. Qc2 Bg4 7. Nbd2 Bxf3 8.
Nxf3 a5 9. Be2 Na6 10. a3 c5 11. O-O b5 12. Bxb5 Qb6 13. Bd3 Rab8 14. Rab1 Nd5
15. dxc5 Nxc5 16. Bc4 Nxf4 17. exf4 a4 18. Ne1 Nb3 19. Bxb3 Qxb3 20. Qxb3 Rxb3
21. Nd3 Bh6 22. g3 Rb7 23. Rfe1 Rfb8 24. Re3 e5 25. Re4 exf4 26. Nxf4 Bxf4 27.
Rxf4 Rxb2 28. Rxa4 *
Position (FEN): 1r4k1/5p1p/3p2p1/8/R7/P1P3P1/1r3P1P/1R4K1 b - - 0 28
Black to move.
Themes: Hanging Piece Endgame, Rook Endgame  
Puzzle rating: 744
Best move: Rxb1+