Logic Masters Deutschland e.V.

Clueless Fog Sudoku 5

(Published on 25. May 2026, 09:28 by AlfSmith)

• Normal Sudoku rules apply.

• Solving a cell clears any fog from itself and its immediate vicinity.

• A gold cell contains its position within its row, column or box. Position is read from left to right, top to bottom. All possible gold cells are given.

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Solution code: row five


Solved by Reisen, rcg, ark29, fuxia, tkn, bloodhovnds, itweb, SKY_TIAN, marcmees, TaeChi, Elliott810, Nagesh, kublai, anothermember, pseudoku, jhuijts, kangaroo, OdioGenerisHumani, Leaving Leaves, MB_Cyclist, ... timww572, jkuo7, Krisonium, oddwheel, Sudokujoker, hige, Prepared Jester, irobird, grrz, Tripodocus, Lussie, kkli, Narayana, CrippledLamp, matiasv5, addie, SirRookie, WvdWest, pepe74287, quinnikins
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Comments

on 27. May 2026, 11:29 by Narayana
Perhaps a clarification about the box rule would make the rules better.
The row and column of a cell are global attributes and so is the BOX NUMBER. So my first interpretation of the rules was that a golden cell could contain its box number. This approach quickly lead to a broken puzzle (because of Boxes 6 and 7) so I re-read the rules and finally figured out what was asked. Since the last property is a local(relative) property, I believe making a distinction is warranted.

I would say instead: A golden cell contains at least one of the following attributes:
1)Its row number
2)Its column number
3)Its relative position within its box when the cells of each box are numbered in reading order.

on 25. May 2026, 18:14 by Snookerfan
Very nice, deserves a much higher rating. Clever and enjoyable, but still easy. Thanks

on 25. May 2026, 18:09 by BorisTheSnake
Not sure why the low rating, but it's a very clean breakin and relatively easy solve.

on 25. May 2026, 17:37 by Myfyr MJ
Very nice but took a while to get going then it pretty much collapsed quite quickly in the end - 49 minutes.

Difficulty:2
Rating:83 %
Solved:74 times
Observed:0 times
ID:000SZS

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