Chess puzzle (Advantage)
Opening: Four_Knights_Game, Four_Knights_Game_Spanish_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 Bc5 5. O-O d6 6. d4 exd4 7. Nxd4 Bd7 8.
Nxc6 bxc6 9. Bd3 Qb8 10. Bg5 Qxb2 11. Na4 Qa3 *
Position (FEN): r3k2r/p1pb1ppp/2pp1n2/2b3B1/N3P3/q2B4/P1P2PPP/R2Q1RK1 w kq - 2 12
White to move.
Themes: Defensive Move Middlegame  
Puzzle rating: 2015
Best move: c3