Shape Fit
spatial · Wildcard, weekly
Drag every piece into the region so it is covered exactly, with no gaps and no overlaps.
A region and a handful of pieces that cover it exactly once. No gaps, no overlaps, nothing left over. The pieces almost always fit somewhere wrong first, and the satisfying moment is realising which one had only ever had one place it could go.
When you will see it
Shape Fit is a Wildcard. It takes the fourth slot for a week at a time, on a rotation through twelve candidates.
The rules, in one line
Drag every piece into the region so it is covered exactly, with no gaps and no overlaps.
This is the same sentence the app shows above the board, so nothing here is a paraphrase of the real rule.