Chess puzzle (Advantage)
Opening: Italian_Game, Italian_Game_Classical_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. c3 d6 6. cxd4 Bb6 7. O-O Bg4 8.
Qb3 Qd7 9. Ng5 Nh6 10. Bb5 a6 11. Ba4 Bxd4 *
Position (FEN): r3k2r/1ppq1ppp/p1np3n/6N1/B2bP1b1/1Q6/PP3PPP/RNB2RK1 w kq - 0 12
White to move.
Themes:  Middlegame  
Puzzle rating: 1713
Best move: Qxb7