MiniMatchI: variations and other figures 
Here are some additional color themes to solve by matching the 9 MiniMatchI tiles. A few have amazing symmetries (reflection), as well as wraparound edges (opposite borders match) and enclosed colors. You are welcome to print out this page to add to your MiniMatchI booklet.
Sample solutions with no enclosed color, no matching opposite borders: Shapes made of 9 squares evenly joined on their edges are also known as enneominoes. The ones we show here are just a few of the dizzying total of 1285 different shapes. All of those can also serve as a MiniMatchI colormatching challenge, if you'd like to tackle them. The hardest ones are, of course, the "chunky" shapes that have the most contact edges.
If any one of the 3x3 solutions were regarded as a unit tile, say for covering a floor or wall with mosaics, there is no end to the patterns and variations you can achieve. Here are a couple of assemblies of just 49 of a single unit formed into 5x5 panels. Thanks, Joe Marasco, for suggesting this expansion idea.
What an incredible change just the tiniest adjustment can make. Imagine, then, what diversity the slightest mutations of DNA can produce. And we're using just 4 colors here; imagine if 6 or more were added. When does artistic order like these become a nightmare of chaos? Here is another expanded replication of a single tile, by Patric Hale, who suggests this plaid should become our tartan (left). Because Patric likes a bit of chaos in his Universe, he added a little twist as perhaps a doorway into the mystery (right):

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