Chess puzzle (Advantage)
Opening: Vienna_Game, Vienna_Game_Vienna_Gambit
Moves: 1. e4 e5 2. Nc3 Nf6 3. f4 exf4 4. Nf3 Bb4 5. e5 Ng4 6. Ne2 g5 7. c3 Bc5 8. d4
Bb6 9. h4 Ne3 10. Bxe3 fxe3 11. Nxg5 f6 12. exf6 Qxf6 13. Nf3 d5 14. Ng3 Bg4
15. Be2 Nd7 16. Qd3 O-O-O 17. O-O-O c5 18. dxc5 *
Position (FEN): 2kr3r/pp1n3p/1b3q2/2Pp4/6bP/2PQpNN1/PP2B1P1/2KR3R b - - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1411
Best move: Nxc5