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.
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Quotes of the Day
Karpov is the official World Champion, but I’m not sure what that really means.
Jan Timman 1993
The competition in the men’s tournament has grown massively over the past 20 years. Chess is becoming more and more popular, and there are no weak teams in the tournament any longer.
Andrey Filatov
I believe that every world champion has a greatness of his own.
Kiril Georgiev 2017
My relation with Korchnoi depends on whether he has slept well. If he had bad dreams, he speaks a lot of rubbish.
Anatoly Karpov 2005
You can’t look too annoyed or they’ll look for the mistake you’ve made. A lot of the time it’s about looking for these opportunities and if you give them a clue, the good players will find it.
Magnus Carlsen 2016