Chess puzzle (Advantage)
Opening: Alekhine_Defense, Alekhine_Defense_Modern_Variation
Moves: 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Nbd2 Nc6 6. c3 g6 7. h3 Bxf3 8. Qxf3
Nb6 9. Bb5 Bg7 10. d5 a6 11. dxc6 axb5 12. cxb7 Rb8 13. exd6 Qxd6 14. O-O O-O
15. Ne4 Qc6 16. Nf6+ *
Position (FEN): 1r3rk1/1Pp1ppbp/1nq2Np1/1p6/8/2P2Q1P/PP3PP1/R1B2RK1 b - - 5 16
Black to move.
Themes:  Middlegame  
Puzzle rating: 1579
Best move: Qxf6