In serious play, if a player having the move touches one of their pieces as if having the intention of moving it, then the player must move it if it can be legally moved. So long as the hand has not left the piece on a new square, the latter can be placed on any accessible square. If a player touches one of the opponent’s pieces then he or she must capture that piece if it can be captured. If none of the touched pieces can be moved or captured there is no penalty.
ECHESSPEDIA
Quotes of the Day
When I am White I win because I am White. When I am Black I win because I am Bogoljubov.
Efim Bogoljubov
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
‘We may all be equal in the eyes of the Lord, but in my eyes you are certainly not equal to me.’
Robert Fischer
Tactics is what you do when there is something to do; strategy is what you do when there is nothing to do.
Savielly Tartakower
You only task in the opening is to reach a playable middle game.
Lajos Portisch