From the Foxger’s Den #21: Fillomino (Rectangles)
or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a composite mode for line/edge drawing and a number entry mode.)
This is a “Franken-Friday” puzzle variation.
Theme: Mostly themeless, besides the variation itself
Rules: Variation of standard Fillomino rules. All polyominoes must be rectangles.
Answer String: For each cell in the marked rows/columns, enter the area of the polyomino it belongs to. Start with the 6th column, followed by a comma, followed by the 9th column.
Time Standards (highlight to view): Grandmaster = 3:45, Master = 5:00, Expert = 10:00
Solution: PDF
Note: Follow this link for other classic Fillomino and this link for more variations on Fillomino puzzles. If you are new to this puzzle type, here are our easiest Fillomino puzzles to get started on.
The given rectancles are the easy part.
Nice use of hidden polyominoes, smooth solve !
Yes, extremely smooth.
A little over expert time 10:24
03:31. It was a frightening 30-second, starting from when my stopwatch was at 03:00. (I want to keep my title as one of the best Fillomino solvers in the world 😛 )
The start was smooth. It gets difficult at the end. But this reiterates too many times, so I’ll just say that this is a rather unusual Shikaku Fillomino for the ending.
The moment I saw this, the uniqueness deduction in bottom-leftt corner caught my eye.Nice puzzle.
Is it possible to clarify the rules somewhat? I’m getting stuck very early on so assuming I’m misinterpreting the rules.
Once I have the 1’s surrounded only one rectangle I can fit around the 8 without overlapping any other numbers, which then means only one way to fit the 5.
to left of 5, I could then fit either a rectangle of 3, or 2 and 1. So this doesn’t seem unique which I would expect? Looking at example, it seems that every cell on the square must be involved in a polyomino?
Ah, nope just made a silly mistake. One of first time trying a Fillomino thought I didn’t understand rules properly!
3:15 I was impressed with how uniqueness was ensured in the centre, with only three clues left at this point to work with – good use of uncommon logical steps.