Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Modern_Variations
Moves: 1. e4 c5 2. Nf3 d6 3. Bc4 Nf6 4. d4 cxd4 5. Qxd4 Nc6 6. Bb5 Bd7 7. Qa4 a6 8.
Bxc6 Bxc6 9. Qb4 Bxe4 10. O-O Bxf3 11. gxf3 Qc7 12. Nc3 e5 13. Rd1 d5 14. Qa4+
b5 *
Position (FEN): r3kb1r/2q2ppp/p4n2/1p1pp3/Q7/2N2P2/PPP2P1P/R1BR2K1 w kq - 0 15
White to move.
Themes:  Middlegame  
Puzzle rating: 1174
Best move: Nxb5