One player is the "Controller,"
other players are "Robots." The "Controller" picks a destination.
Then the "Controller" gives the "Robots" directions for the
sizes of turns and the numbers of steps until the robots reach the
destination.
Example:
"Make a half-turn and go forward 5
steps. Now turn clockwise a quarter-turn and go forward 3
steps."
"Robots" can refuse to move--and
ask for new directions--if they have trouble making a move.