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
According to my experiences, in key events, normally the games’ quality is not as high as other major events. Most brilliant games are not found in championships at present.
Garry Kasparov 2014
First of all, I am a mother, and only then a chessplayer
Ketevan Arakhamia-Grant 2009
” Oh, those exclamation points! How they erode the innocent soul of the amateur, removing all hope of allowing him to examine another player’s ideas critically!”
Tigran Petrosian
Do you realize, Fischer almost never has any bad pieces? He exchanges them, and the bad pieces remain with his opponents.
Yury Balashov
Drawing general conclusions about your main weaknesses can provide a great stimulus to further growth.
Alexander Kotov