Chess puzzle (Advantage)
Opening: Italian_Game, Italian_Game_Hungarian_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. c3 d6 5. d4 Bg4 6. d5 Na5 7. Qa4+ c6 8. dxc6
Nxc6 9. Bd5 Qc7 10. Qb3 Nf6 11. Bxf7+ Kf8 12. Ng5 *
Position (FEN): r4k1r/ppq1bBpp/2np1n2/4p1N1/4P1b1/1QP5/PP3PPP/RNB1K2R b KQ - 2 12
Black to move.
Themes:  Middlegame  
Puzzle rating: 1943
Best move: Nd4