You need to use a Java enabled browser to see this applet. I Know Where You Are

This mind bending game always knows where you are on a grid of colored dots. No matter where you move!
     Follow the directions carefully. Once you start, you may move in any direction except diagonally. Use the "X" marker as a moveable place marker. To move it, click on a new location. The game cannot see the place marker and would never cheat!
    
Beem me up Scotty!