Chess puzzle (Crushing)
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. Be3 Nxd4 8.
Bxd4 b5 9. O-O g6 10. Qf3 Bg7 11. e5 Rb8 *
Position (FEN): 1rbqk2r/4ppbp/p2p1np1/1p2P3/3B4/2NB1Q2/PPP2PPP/R4RK1 w k - 1 12
White to move.
Themes:  Middlegame  
Puzzle rating: 1353
Best move: exf6