Four Groups of Cells, Four Colors, Four Cells per Group.

Each Group has the Same Number in each of the Cells.

Find the Number for one Cell in the Group and you have

the Number for all Four Cells of that color.

( 9 by 9 ) Grid

GEO9-QUAD-4-4-1       GEO9-QUAD-4-4-2

GEO9-QUAD-4-4-3       GEO9-QUAD-4-4-4

( 8 by 8 ) Grid

GEO8-QUAD8-4-4-1     GEO8-QUAD8-4-4-2

GEO8-QUAD8-4-4-3     GEO8-QUAD8-4-4-4