Click a person to move it. If there is an L under it it can only move right; R, left. Hit space to restart.
This is a program simulating the Traffic Jam math puzzle. The goal is to get all the left people to the right and the right people to the left in the fewest possible moves. You can move forward into an empty space or jump another person to move 2 spaces. (Also, the minimum number of moves is 15.)