Get the entire grid yellow as multiple squares invert colors when you tap. The objective is to get all boxes in the 3 x 3 gird yellow with the shortest number of taps and in the shortest time you can.
Grid Grade challenges your spatial intelligence and how quickly you can recognize patterns and begin to use them.
510 grid starting arrangements set. How far along will you get?
510 different starting arrangements for you to play through
9Apps 4.9
