Chess puzzle (Crushing)
Moves: 1. Nf3 Nf6 2. e3 g6 3. d4 Bg7 4. Be2 O-O 5. b3 b6 6. Bb2 Bb7 7. O-O c5 8. c4 e6
9. Nc3 Qe7 10. Qc2 Nc6 11. Rad1 Rac8 12. dxc5 bxc5 13. a3 d6 14. Rd2 Ne8 15.
Rfd1 f5 16. Nb5 Bxb2 17. Qxb2 Rd8 18. b4 cxb4 19. axb4 g5 20. Nbd4 Nb8 21. c5
e5 22. Nb5 Bxf3 23. Bxf3 e4 24. Be2 Rf6 25. Bc4+ Kf8 26. cxd6 Qg7 27. Nc7 Rdxd6
28. Rxd6 Nxd6 29. Ne6+ Rxe6 30. Bxe6 *
Position (FEN): 1n3k2/p5qp/3nB3/5pp1/1P2p3/4P3/1Q3PPP/3R2K1 b - - 0 30
Black to move.
Themes: Hanging Piece Endgame  
Puzzle rating: 815
Best move: Qxb2