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
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
Fischer wanted to prove that all world championship games after his victory were prearranged. He did not convince me.
Vishy Anand 2008
Vasiukov hadn’t won a single game against me for 59 years and then suddenly won. I can’t call it shame. Shame or no shame, it’s a pity that he won…
Viktor Korchnoi 2012
Some twenty years ago an English journalist complained that in sports, only chess and marbles were above suspicion. One wonders what has happened in the world of marbles.
Hans Ree
There is no room for gallantry in chess.
Irving Chernev