A move very calculated which may give up material in order to create a winning chance or a positional advantage. This action could also be used to create some psychological impact like in zeitnot with the idea to destabilise the opponent. Among sacrifices, may be mentioned the positional sacrifice, the mating sacrifice, etc.
ECHESSPEDIA
Quotes of the Day
To Put It Mildly, I Have Not a Bit of Respect For Topalov
Vladimir Kramnik 2015
In addition to talent, Magnus has the health of a racehorse and a powerful nervous system.
Vladimir Kramnik 2015
Karpov Lost, Kasparov Lost, the Only One Who Remained Is Me …
Kirsan Ilyumzhinov 2014
Chess needs Kasparov, he’s very important for chess, he’s a very important figure who can open a lot of doors for chess. And for Kirsan, of course, it was a joke.
Silvio Danailov 2013
Tactics is what you do when there is something to do; strategy is what you do when there is nothing to do.
Savielly Tartakower