Chess puzzle (Crushing)
Opening: Kings_Indian_Defense, Kings_Indian_Defense_Four_Pawns_Attack
Moves: 1. c4 g6 2. Nc3 Bg7 3. e4 d6 4. d4 Nf6 5. f4 O-O 6. Nf3 Nc6 7. d5 Nb8 8. Be2 e6
9. O-O exd5 10. exd5 Bf5 11. Bd3 Bxd3 12. Qxd3 Nbd7 13. h3 Nc5 14. Qc2 Re8 15.
f5 Nce4 16. Nxe4 Nxe4 17. fxg6 hxg6 18. Bf4 Qf6 19. b3 *
Position (FEN): r3r1k1/ppp2pb1/3p1qp1/3P4/2P1nB2/1P3N1P/P1Q3P1/R4RK1 b - - 0 19
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1331
Best move: Qxf4