Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Accelerated_London_System
Moves: 1. d4 d5 2. Bf4 Nc6 3. e3 e6 4. h3 Bd6 5. Bxd6 Qxd6 6. a3 Bd7 7. Nf3 f6 8. c4
dxc4 9. Bxc4 O-O-O 10. Nc3 Qf8 11. O-O Nge7 12. Rc1 Kb8 13. b4 g5 14. Qb3 Qf7
15. Be2 h5 16. Rfd1 g4 17. hxg4 *
Position (FEN): 1k1r3r/pppbnq2/2n1pp2/7p/1P1P2P1/PQN1PN2/4BPP1/2RR2K1 b - - 0 17
Black to move.
Themes:  Middlegame  
Puzzle rating: 958
Best move: hxg4