Chess puzzle (Crushing)
Moves: 1. e4 c5 2. b3 d6 3. Bb2 e5 4. Ne2 Nc6 5. g3 Nf6 6. Bg2 Be7 7. O-O O-O 8. f4 b5
9. a4 b4 10. c4 bxc3 11. Nbxc3 Qb6 12. Kh1 Rb8 13. Ra3 c4 14. Nd5 Nxd5 15. exd5
Na5 16. Nc1 cxb3 17. f5 Ba6 18. Rf3 Nc4 19. Raxb3 Nxb2 20. Rxb6 Nxd1 21. Rxb8 *
Position (FEN): 1R3rk1/p3bppp/b2p4/3PpP2/P7/5RP1/3P2BP/2Nn3K b - - 0 21
Black to move.
Themes:  Middlegame  
Puzzle rating: 1141
Best move: Rxb8