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
Good players actually use their long-term memory much more than inexperienced players, who use their short-term memory. Good players try to recall patterns.
Magnus Carlsen 2016 2016
As chess players, Kasparov and Karpov have exhausted themselves, the people began to forget them and they are trying to attract attention with their inadequate statements.
Kirsan Ilyumzhinov 2010
When I see the Berlin defence, I am almost happy that I am not longer a top player!
Nigel Short 2016
Of chess it has been said that life is not long enough for it, but that is the fault of life, not chess.
Irving Chernev
In addition to talent, Magnus has the health of a racehorse and a powerful nervous system.
Vladimir Kramnik 2015