The action of giving to an opponent an initial advantage in material or in a move. Frequently used by strong players like Philidor, Morphy, etc., in the eighteenth and nineteenth centuries.
ECHESSPEDIA
Quotes of the Day
My relation with Korchnoi depends on whether he has slept well. If he had bad dreams, he speaks a lot of rubbish.
Anatoly Karpov 2005
Fischer wanted to prove that all world championship games after his victory were prearranged. He did not convince me.
Vishy Anand 2008
One of the most important things in chess is pattern recognition: the ability to recognise typical themes and images on the board, characteristics of a position and their consequences.
Magnus Carlsen 2010
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
Whatever opinions people might have about Ilyumzhinov, I am sure that exactly those accusations by the US authorities are far-fetched. It looks more like a revenge for the 2014 FIDE elections which Kasparov lost to Ilyumzhinov by a wide margin.
Vladimir Kramnik 2016