Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Accelerated_London_System
Moves: 1. d4 d5 2. Bf4 Nc6 3. Nf3 f6 4. c3 e5 5. dxe5 fxe5 6. Bg5 Be7 7. Bxe7 Qxe7 8.
e3 e4 9. Nd4 Nxd4 10. cxd4 Bd7 11. Nc3 Qb4 12. Rb1 O-O-O 13. Be2 Nf6 14. a3 Qb6
15. O-O a6 16. b4 h5 17. Qb3 Bg4 18. Bxg4+ *
Position (FEN): 2kr3r/1pp3p1/pq3n2/3p3p/1P1Pp1B1/PQN1P3/5PPP/1R3RK1 b - - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1651
Best move: hxg4