Delete Opponent Who Won't Play

You have an option in your settings to automatically claim victory when time runs out. If y do not have it activated, there should be an option in the game page to claim your victory, but could not tell you which one because I have the settings one activated.
I have two opponents who won't play -- one has made only one move and the
other hasn't moved at all. This has gone on for days, well beyond the required
time to make a move.