please i want to ask one thing concerning tournament.

In the tournament can your opponent play stand up

that is mean taking a seat than stand up all the time, can i ask the referee to tell that he must take a seat or not ????

please respond if u know.

I believe that seats are not required, and people can stand up and move around whenever they want, and if they might desire, for all the game. some opponents like to think of thier game without the board, but I don't believe that's a good strategy...