A term used in chess composition or chess solving. It means that every piece must contribute towards the solution, through not necessarily in the main line.
ECHESSPEDIA
Quotes of the Day
Fischer wanted to prove that all world championship games after his victory were prearranged. He did not convince me.
Vishy Anand 2008
I’ve been playing chess professionally for 35 years! It’s a long time, and when people can still say that they enjoy my chess, that’s great.
Nigel Short 2016
Agon was just sold for one pound and the reputation of Ilyumzhinov’s FIDE is worth even less than that.
Garry Kasparov 2014
In addition to talent, Magnus has the health of a racehorse and a powerful nervous system.
Vladimir Kramnik 2015
Chess is a scientific game and its literature ought to be placed on the basis of the strictest truthfulness, which is the foundation of all scientific research.
W. Steinitz