Chess puzzle (Advantage)
Opening: Modern_Defense, Modern_Defense_Bishop_Attack
Moves: 1. e4 g6 2. d4 Bg7 3. Bc4 d6 4. Nf3 e5 5. d5 Ne7 6. Bd3 c6 7. c4 O-O 8. Nc3 Bg4
9. h3 Bd7 10. Bg5 Na6 11. a3 Nc5 12. Bc2 h6 13. h4 *
Position (FEN): r2q1rk1/pp1bnpb1/2pp2pp/2nPp1B1/2P1P2P/P1N2N2/1PB2PP1/R2QK2R b KQ - 0 13
Black to move.
Themes:  Opening  
Puzzle rating: 1255
Best move: hxg5