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. Bd3 Nc6 7. Nf5 Bxf5 8.
exf5 e6 9. fxe6 fxe6 10. O-O Be7 11. Bf4 O-O 12. Ne4 *
Position (FEN): r2q1rk1/1p2b1pp/p1nppn2/8/4NB2/3B4/PPP2PPP/R2Q1RK1 b - - 5 12
Black to move.
Themes:  Opening  
Puzzle rating: 977
Best move: Nxe4