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
I am the best player in the world, and I am here to prove it.
Robert Fischer 1971
My style is based on giving energy and creating. Karpov’s style is something that is probably taking energy from his opponent. NIC 1989
Garry Kasparov 1989 NIC
No player, however strong, no member, however large, shall stand above FIDE
Florencio Campomanes
I have always a slight feeling of pity for the man who has no knowledge of Chess
Siegbert Tarrasch
I am a totally normal guy. My father is considerably more intelligent than I am.
Magnus Carlsen 2010