This is your "drive you nuts" entry of the day.
Switch the frogs to the opposite side within two minutes. It is easily accomplished if you take a moment to THINK before you proceed. This is [supposedly] a 2nd grade computer test in China. The arrow in the lower left allows you to restart.
http://stwww.weizmann.ac.il/G-CS/BENARI/files/frogs.swf
