This will definitely test your reflexes and keep you busy for awhile.
Be careful, this is dangerously addictive! The object is to move the
red block around without getting hit by the blue blocks, which begin
moving as soon as you touch the red, and without coming into contact with any of the black walls. If you can go longer than 22 seconds you are phenomenal. The US Air Force uses this for fighter pilots. They are expected to go for at least 2 minutes. Give it a try!!
http://members.iinet.net.au/~pontipak/redsquare.html
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