Chess puzzle (Advantage)
Opening: Four_Knights_Game, Four_Knights_Game_Italian_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bc5 5. a3 O-O 6. O-O d6 7. d3 Bg4 8. h3
Bh5 9. Bg5 h6 10. Bh4 Nd4 11. Nxd4 *
Position (FEN): r2q1rk1/ppp2pp1/3p1n1p/2b1p2b/2BNP2B/P1NP3P/1PP2PP1/R2Q1RK1 b - - 0 11
Black to move.
Themes:  Opening  
Puzzle rating: 1645
Best move: Bxd1