Chess puzzle (Crushing)
Moves: 1. g3 e5 2. Bg2 Nc6 3. c4 d6 4. Nc3 f5 5. e3 Nf6 6. Nge2 Be7 7. d4 O-O 8. O-O
a6 9. a3 Bd7 10. b4 b5 11. cxb5 axb5 12. Nxb5 e4 13. Qb3+ Kh8 14. a4 Ne5 15.
dxe5 Bxb5 16. exf6 Bxf6 17. Bb2 Bxe2 18. Rfc1 d5 19. Bf1 Bf3 20. Bxf6 Rxf6 21.
Rc5 d4 22. exd4 Qxd4 23. Qc3 Qd8 24. Rxc7 h5 25. h4 Kh7 26. a5 Rg6 27. Kh2 Qd6
28. Bh3 Rf8 29. Qc5 Qd2 30. a6 *
Position (FEN): 5r2/2R3pk/P5r1/2Q2p1p/1P2p2P/5bPB/3q1P1K/R7 b - - 0 30
Black to move.
Themes:  Middlegame  
Puzzle rating: 2062
Best move: f4