What is the fox in the chicken coupe? Please advise.

i have no idea and how does this relate to chess?

It's the name given to a tactic by IM Silman in his endgame book. The basic idea is we'll say white has an outside passed pawn on the queenside and the kingside is locked up. White gives up his passed pawn to black so that he can take all the kingside pawns and easily convert a win.

e.g.

Thanks I have seen this  number of times, now I get the name!  lol. Good examples.

pawns are so delicious!!!!