Logic Masters Deutschland e.V.

Fortress Fillomino - Zippers (10x10)

(Published on 17. July 2026, 16:45 by ThePedallingPianist)





click image to play this week's Fortress Fillomino

FORTRESS FILLOMINO:
• Divide the grid into orthogonally connected regions and fill each cell with a number (not necessarily single-digit) showing the number of cells in the region to which it belongs;
• Each region must be either strictly larger than all of its orthogonal neighbours or strictly smaller than all of its orthogonal neighbours.

ZIPPERS:
• For each lavender Zipper line, pairs of values equidistant from the centre sum to the same total, N, which for odd-length lines is the value in the central cell.

Solution code: Column 10 (rightmost), top to bottom

Last changed on on 4. September 2026, 00:30

Solved by kasperd, palpot, yttrio, tuturitu, Mr. Happy, Christounet, johnyzzh, jkuo7, marcmees, Piatato, kangaroo, WedgeOfCheese, aqjhs, SFP, ralphwaldo1, Jesper, Flinty, EmiliaPuzzleSolver, SPring, misko, ... earthpuzzles, Nell Gwyn, Counterfeitly, webato, wullemuus, Fusce, flip1995, QuiltyAsCharged, richcard, woody, YellowMug, THef of Time, DaleVandermeer, IcyFruit, PrincessSophia, LignumBoooom, elmers
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Comments

on 24. September 2026, 13:51 by QuiltyAsCharged
Fantastic puzzle, and very hard! I had to set it aside a couple times and come back to find my way through

on 19. August 2026, 02:07 by earthpuzzles
This was a real brain twister! Loved it. Thank you for setting it.

on 6. August 2026, 17:46 by LeiZ123321
very tricky and nice!

on 22. July 2026, 12:49 by Flinty
Easy dubz ... (checks time, 77mins) ... Medium-ard Dubz, not quite 'Dean Gaffney's fictional dog*' Dubz! Very nice! :)

(*Wellard)

on 18. July 2026, 23:16 by Piatato
Lovely!

on 18. July 2026, 19:18 by marcmees
A puzzle that's growing on you. Interesting till the end. Thanks

on 18. July 2026, 09:12 by Christounet
Pretty harder than most FFF entries this one. Very nice how it resolves. Thanks :)

on 18. July 2026, 00:55 by yttrio
Really nice to see a puzzle in the series with some trickier, more intricate logic!

on 17. July 2026, 20:39 by kasperd
Nice to see some more challenging fortress fillomino puzzles.

Difficulty:4
Rating:97 %
Solved:49 times
Observed:0 times
ID:000SU0

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Solution code:

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