Chess puzzle (Advantage)
Opening: Kings_Indian_Attack, Kings_Indian_Attack_Omega-Delta_Gambit
Moves: 1. Nf3 d5 2. g3 e5 3. d3 c5 4. Bg2 Bg4 5. c4 Nf6 6. O-O Bd6 7. Bg5 h6 8. Bxf6
Qxf6 9. cxd5 Bxf3 10. Bxf3 h5 11. h4 g5 12. hxg5 Qxg5 13. Qa4+ Nd7 14. Kg2 h4
15. Rh1 O-O-O 16. Qg4 f6 17. Rxh4 Rxh4 18. gxh4 Qxg4+ *
Position (FEN): 2kr4/pp1n4/3b1p2/2pPp3/6qP/3P1B2/PP2PPK1/RN6 w - - 0 19
White to move.
Themes:  Middlegame  
Puzzle rating: 942
Best move: Bxg4