Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Marshall_Gambit
Moves: 1. e4 e6 2. d4 d5 3. Nc3 c5 4. dxc5 Bxc5 5. exd5 exd5 6. Nxd5 Nf6 7. Nxf6+ Qxf6
8. Nf3 Bg4 9. Be2 O-O 10. c3 Re8 11. b4 *
Position (FEN): rn2r1k1/pp3ppp/5q2/2b5/1P4b1/2P2N2/P3BPPP/R1BQK2R b KQ - 0 11
Black to move.
Themes:  Opening  
Puzzle rating: 2237
Best move: Bxf3