Logic Masters Deutschland e.V.

aquarium

(Published on 9. September 2026, 15:09 by Lizzy01)

Rules:
Fill some cells with water. If a cell is filled with water, all other cells within the same region that are in the same or a lower row have to be filled with water as well. Clues outside the grid indicate the number of water cells in the corresponding row or column.

Try it here.

Solution code: column 2 from top to bottom, W for water cell and X for empty cell (e.g. WXWXWXWWW)


Solved by gladstone, SEPHEN, amirs, marcmees, mattnburris, topoi, irq, jordanza, dogfarts, saskia-daniela, pms_headache, Piatato, AnnaTh, Kpn, Christounet, david.woitkowski, Elliott810, kangaroo, Fool on Hill, ... ManuH, r45, lifeless, EvanB, Toastbrot, dunder, VesperV, LolaK, gepa, JustinTucker, Jesper, NEWS, yellow, drf93, Uhu, abadx, chrisbee2, Tacosian, moss, Nonio7, Playmaker6174, sisaloofafump, ringel
Full list

Comments

on 3. October 2026, 03:36 by sisaloofafump
Really interesting puzzle! Seemed straight forward and then id get stuck in a loop of possibilities, thinking one move was inevitable only to find out it wasn't. Still finished fairl quick and thoroughly enjoyed it the whole time :D

on 12. September 2026, 21:34 by Trisolis
Really enjoyed! Logic flowed very smoothly after I understood the ramifications of the rules better.
Here’s the solution link on SudokuPad if anyone wants it (1 for water tile, 0 for empty): https://sudokupad.app/646ecpt6q0

Last changed on 12. September 2026, 19:30

on 12. September 2026, 04:34 by Turrit_Hugger
I didn’t like doing this in Sudokupad, so I made a copy of it in Penpa+ (sorry for the unshortened link)
https://swaroopg92.github.io/penpa-edit/#m=solve&p=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&a=VY7LDYUwDAR7yZkDAX9ridJ/G3mz74QUjdB6vGatMe85rh8fMcSE08USGz43fE3U1F5Rif0T+Sbf5bvaXHlwxThipJIdN/gJTYPKoDFQEjn1hZzIRW+xUWRF1mTNbtvY1/q8fQA=
Edit: I have realized that solution checking may be broken, so I have changed the link.

Last changed on 10. September 2026, 15:04

on 10. September 2026, 13:52 by Elliott810
Beautiful puzzle! Thank you:)

--Thanks!

Difficulty:1
Rating:93 %
Solved:61 times
Observed:0 times
ID:000UM1

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