Puzzle Party
Unsettled
Each team tries to make the fewest sets of non-sets.
I liked this puzzle. It had familiar pieces for most people, and required them to think about those pieces in a very different way. However, my testing suggested that it was possible to make six decks at the very least. Imagine my surprise when Paul, from The Armadillos, comes up with a solution that only used five! As a result, I had to change the scoring on this one. Excellent job, Paul!
A few people have suggested that it should be possible to divide the deck into three groups of 27 cards each that contain no sets, but that seems unlikely to me.