Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Hyperaccelerated_Fianchetto
Moves: 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Qxd4 Nf6 5. e5 Nc6 6. Qc3 Nd5 7. Qd2 e6 8. c4
Nde7 9. Nc3 Bg7 10. Ne4 Nxe5 11. Nd6+ Kf8 12. Ng5 Nf5 13. Ngxf7 *
Position (FEN): r1bq1k1r/pp1p1Nbp/3Np1p1/4nn2/2P5/8/PP1Q1PPP/R1B1KB1R b KQ - 0 13
Black to move.
Themes:  Opening  
Puzzle rating: 944
Best move: Nxf7