Chess puzzle (Advantage)
Opening: London_System, London_System_Other_variations
Moves: 1. d4 Nf6 2. Nf3 g6 3. Bf4 d6 4. e3 Bg7 5. Bd3 Nc6 6. c3 O-O 7. Nbd2 Re8 8. h3
e5 9. Bg5 h6 10. Bxf6 Bxf6 11. d5 Ne7 12. e4 a6 13. h4 b5 14. Ng5 *
Position (FEN): r1bqr1k1/2p1np2/p2p1bpp/1p1Pp1N1/4P2P/2PB4/PP1N1PP1/R2QK2R b KQ - 1 14
Black to move.
Themes:  Middlegame  
Puzzle rating: 1125
Best move: hxg5