Mind Games -  Lights out

Try to eliminate all the boxes to win. When you check a box, all the squares around it (one above, one below, and one to each side) are unselected. You can play in five different levels of difficulty. Addictive!
 
 

level 1 level 2
level 3 level 4
level 5
 
 
 
 
 
     

IQ Test Labs 2015

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