reza: I think even better is not to start five different games in five different windows. I think something like this will do better:

after you mak eyour move and decide to finish it, you are taken to a second game in which you play your turn if it is yours and if not, to another one in which it's your turn and if in non of the other games of the match it is your turn, you simply choose to do whatever else you want to do.