Chess puzzle (Advantage)
Opening: Vienna_Game, Vienna_Game_Stanley_Variation
Moves: 1. e4 e5 2. Bc4 Nf6 3. Nc3 Bc5 4. Nf3 O-O 5. Nxe5 d6 6. Nf3 Bg4 7. h3 Bh5 8. a3
Re8 9. d3 Nc6 10. g4 Bg6 11. g5 *
Position (FEN): r2qr1k1/ppp2ppp/2np1nb1/2b3P1/2B1P3/P1NP1N1P/1PP2P2/R1BQK2R b KQ - 0 11
Black to move.
Themes:  Middlegame  
Puzzle rating: 2056
Best move: d5