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
I was pushed out of USSR by the hands of Petrosian and Karpov. But now, after 10 years, Petrosian is not longer alive and Karpov is not longer World Champion, so it seems that everything is in place now.
Viktor Kortchnoi 1986 NIC
I may be an old lion, but I can still bite someone’s hand off if he puts it in my mouth
Wilhelm Steinitz
First-class players lose to second-class players because second-class players sometimes play a first-class game
Siegbert Tarrasch
If the 12th game (from the match Carlsen-Karjakin)… were a restaurant dish, I would send it back to the chef.
Nigel Short 2016
Sport can make girls feel more stronger, more stable and you can fight in the future when you enter the society. It is a really good quality for a girl and I think sports are a good way to generate your personality which is really important.
Hou Yifan 2016