A situation when a piece or a pawn cannot or is forbidden to move because it could expose the king for an attack or would expose a more valuable piece behind it to capture.
In the following example Qa3 and Re7 are pinned.
ECHESSPEDIA
Quotes of the Day
Karpov is the official World Champion, but I’m not sure what that really means.
Jan Timman 1993
In the past twenty years Kramnik has played a few thousand games, and if you show me a position from one of them, in 90 percent of the time I will be able to tell you which game it is from.
Vishy Anand 2008
I don’t believe that Garry likes making decisions by democratic procedures. When there is a decision that he doesn’t like, he just turns against this organization.
Georgios Makropoulos 2013
I think I am certainly more talented than many other people. But I don’t know what talent consists of.
Magnus Carlsen 2014
Karpov Lost, Kasparov Lost, the Only One Who Remained Is Me …
Kirsan Ilyumzhinov 2014