Chess puzzle (Crushing)
Moves: 1. e4 c5 2. d4 cxd4 3. Nf3 g6 4. Nxd4 Bg7 5. b3 Nc6 6. Bb2 Nf6 7. Nxc6 bxc6 8.
Nd2 O-O 9. Bc4 d5 10. exd5 cxd5 11. Bd3 Qc7 12. h4 e5 13. c4 e4 14. Bc2 Bg4 15.
f3 Qg3+ 16. Kf1 exf3 17. Nxf3 Ne4 18. Bxe4 dxe4 19. Bxg7 Rfd8 20. Qc2 Kxg7 21.
Qc3+ *
Position (FEN): r2r4/p4pkp/6p1/8/2P1p1bP/1PQ2Nq1/P5P1/R4K1R b - - 1 21
Black to move.
Themes: Defensive Move Middlegame  
Puzzle rating: 1767
Best move: f6