Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Kan_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 5. Nxd4 Qc7 6. Qg4 Nf6 7. Qf3 Bb4 8.
Bf4 Bxc3+ 9. bxc3 e5 10. Nf5 *
Position (FEN): rnb1k2r/1pqp1ppp/p4n2/4pN2/4PB2/2P2Q2/P1P2PPP/R3KB1R b KQkq - 1 10
Black to move.
Themes:  Opening  
Puzzle rating: 1524
Best move: exf4