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
Looks like I’m going to raise the average age of the field and lower the average rating!
Garry Kasparov 2017
Botvinnik and Tal are among the best; I also like Spassky, but I think Petrosian is better than all of them. His weakness is too many draws, even against players he could beat easily. Maybe he lacks self-confidence.
Robert Fischer 1960
For goodness’ sake, how could Kasparov, after all his matches against Karpov, support him in the FIDE President elections? What sort of unprincipled person do you have to be? I would never understand that.
Viktor Korchnoi 2012
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
I was pushed out of USSR by the hands of Petrosian and Karpov. But now, after 10 years, Petrosian is not longer alive and Karpov is not longer World Champion, so it seems that everything is in place now.
Viktor Kortchnoi 1986 NIC