Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Najdorf_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3
Nbd7 9. Bc4 Qc7 10. Bxe6 Nc5 11. Bxc8 Rxc8 12. Bxf6 Bxf6 13. Nd5 Qa5+ 14. b4
Bxd4 *
Position (FEN): 2r1k2r/1p3ppp/p2p4/q1nN4/1P1bPP2/5Q2/P1P3PP/R3K2R w KQk - 0 15
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1113
Best move: bxa5