Trichroma Paintomino
(Published on 6. April 2026, 09:21 by PrimeWeasel)
I decided to take a swing at MaizeGator's excellent Trichroma Paintomino series. I recommend checking them out if you haven't! The first one, with a visual example can be found Here
Divide each bold-outlined region into three differently sized sub-groups of cells. Then, assign one of three colors to each group so that each region contains exactly one group of each color. A digit in a cell indicates the size of that cell’s group.
Sub-groups that border one another through a bold region boundary may not be the same color OR the same shape (counting rotations and reflections as the same). For example, two touching S-tetrominos in different configurations is not allowed, but an S-tetromino may touch a T-tetromino.
When the colors of the sub-groups for each region are placed in order from largest to smallest, any pair of bordering regions must have a different order.
Penpa
Solution code: Assign the letters A,B and C to the colors you've used, where A is the first color seen, B, the second, and C the third, for column 3.
Solved by Piatato, Mr_tn, MaizeGator, JustinTucker, Jesper, sehringdipity, tryote, Calesch, Agent, misko, trashghost, webato, MazzleFlush
Comments
yesterday, 21:05 by MazzleFlush
Really love this ruleset! Glad someone else keeps them coming as well!
on 8. April 2026, 13:11 by Agent
Another fun one!
on 6. April 2026, 12:27 by MaizeGator
Fantastic! I will admit that I felt just a tiny bit silly about sharing my dumb ruleset creation with the world, but I am so happy to see others inspired by the idea.
on 6. April 2026, 09:25 by Piatato
Fun!
