Appeared for the first time in 1915. A pin in which the Chessman subject to the pin may move along the same line (file, rank or diagonal) which it shares with the attacker.
ECHESSPEDIA
Quotes of the Day
I think that the World Champion should try to defend the quality of play more than anyone else!
Boris Spassky
I think I would beat Tal pretty easily. Fischer would be more difficult, but I think I could beat him too.
Magnus Carlsen
Time trouble is blunder time.
Alexander Kotov
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
He has weaknesses, as everyone does, but far fewer than those around him.
Veselin Topalov 2016