Chess puzzle (Advantage)
Opening: Alekhine_Defense, Alekhine_Defense_Other_variations
Moves: 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. Nc3 dxe5 6. d5 c6 7. Nf3 e4 8. Nxe4
cxd5 9. cxd5 Qxd5 10. Qxd5 Nxd5 11. Bc4 Nb6 12. Bb5+ Bd7 13. Nd4 a6 14. Bd3 Nc6
15. Be3 O-O-O 16. O-O-O e5 *
Position (FEN): 2kr1b1r/1p1b1ppp/pnn5/4p3/3NN3/3BB3/PP3PPP/2KR3R w - - 0 17
White to move.
Themes:  Middlegame  
Puzzle rating: 1424
Best move: Nxc6