豊田氏@東大が 解答アプレット を作ってくれました。

This is a Java applet for experiencing a problem introduced in How Would You Move Mount Fuji?: Microsoft's Cult of the Puzzle. You (blue square) are first at the center of a round pond, and you should escape from the devil (yelow square) running along the perimeter of the pond, who can run 4 times as fast as you. You can successfully escape from the devil if you take an appropriate strategy, and can you describe it?