A tactical way to improve ones position. Rules don’t exist but there are many practical examples especially in endgames.
ECHESSPEDIA
Quotes of the Day
Carlsen simply plays chess well. It seems to me that in such cases people are inclined to look for some supernatural explanation, although the simplest explanation is also the most appropriate: the guy simply plays chess well.
Alexander Grischuk 2014
In chess,honestly,nobody cares how beautiful you play,if Morphy would be 2710 today,he would not get a single invitation.
Teymur Rajabov 2017
Everything is very concrete nowadays. The computer often gives unnatural moves which are correct, but sometimes hard to remember. You know a line is correct, but then your forget something and lose terribly.
Daniel Stellwagen 2010
” Chess is a sport. A violent sport.”
Marcel Duchamp
Petrosian-Spassky? To think I could have watched an excellent football match instead!
Mikhail Tal 1966