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
Chess politic is not my dream, but I will be happy when we start to change things and organize a better chess life in the world.
Anatoly Karpov 2010
The main thing is that you’ve got to keep on studying however old you are. You can’t just rely on your capital, so you have to try and keep up, and that is a difficult task.
Nigel Short 2016
Karpov, Kasparov, Korchnoi have absolutely destroyed chess by their immoral, unethical, prearranged games. These guys are really the lowest dogs around, and if people knew the truth about them, they would be held in more contempt than Ben Johnson, the runner, and they’re going to know the truth when I do this book!
Robert Fischer September, 1 1992
Despite the ugliness of his decline, Bobby Fischer deserves to be remembered for the great things he did for chess and for his immortal games.
Garry Kasparov 2004
If I’m thinking for more than 20 minutes about one move, it’s usually a waste. Sometimes you can come up with some amazing solution but most of the time you just end up looping: you consider a move, you reject it, then you’re desperate, you come back to the move, you don’t remember why you rejected it, you have to make a move so you make it – then your opponent replies and you remember why you rejected it. The longest wait I ever did between moves was one hour and five minutes – and the move was horrible.
Magnus Carlsen 2016