Shultc table - notice changing

Shultc table - notice changing Publisher's Description:
First left click on the red Go arrow in the lower right corner of this window and the Shultz Table will appear. Your main strategy is to softly look at the red dot in the center of the table and continue to see this central point while at the same time noticing all other numbers. Left click with your mouse on the red dot at the center of the screen. One number will change. Try to notice which number changed and left