Nimzowitsch explained this as a protected piece on the opponent’s side of the board that cannot be attacked by a pawn.
Karpov, Anatoly vs Kasparov, Garry 1-0 World Championship 35th-KK5 Rnd:17
Lyon/New York 1990.12.05
ECHESSPEDIA
Quotes of the Day
I have always a slight feeling of pity for the man who has no knowledge of Chess
Siegbert Tarrasch
Fischer’s strength, among other things, was his ability to evolve the most efficient plan for the middlegame right after the opening.
Boris Spassky
Everything is very concrete nowadays. The computer often gives unnatural moves which are correct, but sometimes hard to remember. You know a line is correct, but then your forget something and lose terribly.
Daniel Stellwagen 2010
Looks like I’m going to raise the average age of the field and lower the average rating!
Garry Kasparov 2017
I thank the Lord for not pairing me with Black against Magnus Carlsen in the first round.
Nigel Short 2017