Logic Masters Deutschland e.V.

Mad Fillominold-in

(Published on 3. November 2025, 18:05 by ChinStrap)

Set for a Scojo Setting Saturday prompt challenge given by gdc about Mad Fold-in puzzles. Thanks to all that tested!

Click the image to play

If you want a version with the folded region next to the full grid to make it easier to visualize, you can get that here but it is not recommended unless you are struggling as part of the fun is visualizing the folded part from the unfolded.

Rules
  • Fillomino:

    • Divide the grid into regions, such that no two orthogonally adjacent regions have the same size.
    • Write the size of its region into each cell as that cell's value.
  • Mad Fold-in:

    • If the cells between the dashed columns are removed, all regions and clues fold into valid regions and clues in the resulting 4x9 grid.

All feedback (positive or critical) appreciated!

Solution code: Row 5 left to right (9 digits)

Last changed on on 3. November 2025, 18:24

Solved by MaizeGator, mellowrobinson, gdc, Calvinball, sujoyku, NEWS, sfushidahardy, teff, marcmees, SKORP17, aqjhs, Mark Sweep, maniacaljackal, Franjo, Counterfeitly, olliwright, JustinTucker, Felis_Timon, sorryimLate, St9, karlmortenlunna, Scojo, ralphwaldo1, jkuo7, damo_89, MaxSmartable, Nell Gwyn, TheZwierz, gepa, mir85, paranoid, sehringdipity, Calesch, ns08, Taeqle, Neumino
Full list

Comments

Last changed on 3. November 2025, 21:10

on 3. November 2025, 21:09 by marcmees
Fun Puzzle, felt easier than 3 *. Thanks

on 3. November 2025, 20:19 by teff
incredibly cool puzzle!!

on 3. November 2025, 18:24 by sujoyku
Lovely puzzle! Really cool how Fillomino shaping interacted with the two different natures of the grid. Thank you, ChinStrap!

on 3. November 2025, 18:18 by Calvinball
Also my first fold-in puzzle, and a great one to cut your teeth on, everything was smooth and clean and exceptionally enjoyable.

on 3. November 2025, 18:09 by MaizeGator
My very first fold-in puzzle! It took me a moment to get familiar with the implications of the rules, but I thought it was very smooth nevertheless.

Difficulty:2
Rating:96 %
Solved:36 times
Observed:0 times
ID:000PZ2

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Solution code:

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