Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_McDonnell_Attack
Moves: 1. e4 c5 2. f4 e6 3. Nf3 Nc6 4. Bb5 Nf6 5. e5 Nd5 6. d3 Qa5+ 7. Bd2 Qxb5 8. c4
Qxb2 9. cxd5 Qxa1 10. dxc6 bxc6 *
Position (FEN): r1b1kb1r/p2p1ppp/2p1p3/2p1P3/5P2/3P1N2/P2B2PP/qN1QK2R w Kkq - 0 11
White to move.
Themes:  Middlegame  
Puzzle rating: 1680
Best move: Qb3