Logic Masters Deutschland e.V.

Escape from Sudoku Tower (dynamic FoW)

(Published on 31. August 2025, 08:00 by Kaktuslav)

You find yourself trapped in one of nine rooms on the top floor of a mysterious Sudoku Tower. Can you find a way to escape?

This is a Fog of War puzzle. You can play it on SudokuPad: https://sudokupad.app/guqknqq3bo



Rules: Normal Sudoku rules apply.

Locked doors: In the grid there are nine secret codes, labeled #1–#9, each being at most a 3-digit number read either horizontally (left to right) or vertically (top to bottom). When a code is correctly identified, the corresponding door opens, granting access to the region behind it (i.e., fog will only be lifted from cells that can be reached through open doors). No guessing is required.

Clues: Some cells contain clues written at the bottom. A clue in a cell containing the digit N describes a property of the code #N. Examples:
  • A clue reading “▯▯▯” in a cell with the digit N means that code #N is a 3-digit number.
  • A clue reading “in row 5” in a cell with the digit N means that code #N is contained entirely in row 5 (out of 9).
  • A clue reading “x^2” in a cell with the digit N means that code #N is a perfect square.
  • A clue reading “2x+1” in a cell with the digit N means that code #N is odd.
(Note: in all clues x can be any integer.)

Solution code: Row 9 (of the 9x9 Sudoku grid)

Last changed on on 31. August 2025, 17:46

Solved by itweb, by81996672, Briks, zeniko, Iluvsodah, edd, dr_nectar, jinkela114514, 3ColorTheorem, Piff, tourtiflette, illegel, IvoryLinnie, ddx02, efnenu, SeamusOL, karlmortenlunna, Zibl, pfox, ... drmegadude, QuiltyAsCharged, Kawkaz, MaxSmartable, Cryccu, OJPS, Hieronymus, trashghost, spookyripper, MattJones, dustpan, Astraeus, dorverbin, katykatyk, dzamie, AkashG23, KyubiBoy, sorryimLate
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Comments

on 5. September 2025, 12:16 by MattJones
One of the most satisfying puzzles I’ve solved. Really clever and original. Thank you!

on 3. September 2025, 20:24 by QuiltyAsCharged
That was great, it's very fun and original!

on 1. September 2025, 08:26 by alisonsky2
Would love to see more in this series!

on 1. September 2025, 04:24 by panthchesh
Thank you for the puzzle! that was fun!

on 1. September 2025, 01:44 by avishai
So clever, and so fun! Thank you so much for this!!

on 1. September 2025, 00:50 by Exigus
Really creative construction. Took a little bit of time to understand what the clues were saying but then it was smooth. Thanks!

on 31. August 2025, 17:46 by Kaktuslav
Fixed the link

on 31. August 2025, 16:16 by abihummel
The trickiest part of this is making sense of the rules. The puzzle falls apart quite naturally once that happens!

Last changed on 31. August 2025, 13:38

on 31. August 2025, 10:29 by zeniko
Nice combination of FoW with lore. The puzzle also had a pleasant flow, thanks to the views from the battlements. Thanks for sharing.

on 31. August 2025, 09:54 by Briks
Loved it! That was fun :)

Difficulty:3
Rating:96 %
Solved:97 times
Observed:2 times
ID:000OY8

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