Currently not being allowed to move a chess piece on computer. Tech problem?
You should submit to Help and Support but you need to provide a lot more info for anybody to be able to help you.
What game were you playing? (hopefully with a link so that they can identify it from your archive.) When were you playing? What move did you get stuck on?
What equipment are you using? Did anything change recently?
Currently not being allowed to move a chess piece on computer. Tech problem?