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
Kasparov doesn’t care about chess, but only about himself and his political goals
Kirsan Ilyumzhinov 2015
There is no room for gallantry in chess.
Irving Chernev
I give 98 percent of my mental energy to Chess. Others give only 2 percent!
Robert Fischer
Time trouble is blunder time.
Alexander Kotov
Now, at 51, in my life I have reach the stage between the middlegame and the endgame. But I don’t have the feeling that I am in the endgame already.
Boris Spassky 1988 NIC
