Chess puzzle (Crushing)
Opening: Kings_Indian_Defense, Kings_Indian_Defense_Normal_Variation
Moves: 1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 O-O 5. Nf3 b6 6. Bd3 Bb7 7. O-O a6 8. Re1
d6 9. Bg5 Nbd7 10. Qd2 Re8 11. Bh6 e5 12. dxe5 Nxe5 13. Bg5 Nxf3+ 14. gxf3 Qd7
15. f4 Qg4+ 16. Kh1 Qf3+ 17. Kg1 Ng4 18. Bf1 *
Position (FEN): r3r1k1/1bp2pbp/pp1p2p1/6B1/2P1PPn1/2N2q2/PP1Q1P1P/R3RBK1 b - - 6 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1739
Best move: Bxc3