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
I think that ACP is a small clique, which gives power to more cliques.
Nigel Short 2016
I think I would beat Tal pretty easily. Fischer would be more difficult, but I think I could beat him too.
Magnus Carlsen
” The essence of chess is thinking about what chess is.”
David Bronstein
Maybe I had something of Capablanca. Why should I prepare when I have ideas?
Svetozar Gligoric 1989 NIC
The Golden Age, when machines were weak and my hair was strong!
Garry Kasparov 2017