Logic Masters Deutschland e.V.

Fog of War #39

(Published on 30. August 2026, 14:45 by Sudonym)

Fog of war sudoku. Easy puzzle. Mixed rules. Link to puzzle. sudokupad. There is a video solution and more puzzles on youtube channel "sudoku spot" video solution. Rules: Normal sudoku rules apply. Black dots separate cells in the ratio 1:2. White dots separate consecutive cells. Cages must sum to the numbers in the top corner of the cage. Numbers cannot repeat in a cage. Global entropy...Every 2x2 square of cells must contain a low digit (1,2,3), a middle digit (4,5,6) and a high digit (7,8,9). Red parity lines must alternate between odd and even numbers along the lines.

Solution code: Column 1


Solved by thomamas, macintux, Onyx, kroutu, zonny, fuxia, cmigas, jordanza, flaemmchen, RadchenkoAleksandr, abs, alm, Deklok, forsen, Harold, Ph1nt, goldensun, NEWS, alatteesau, FireShot7, Montinox, kangaroo, ... rcg, Mylo_Vertical, jgarber, WvdWest, R0X, W1n5t0n, PFHuman, Vaurien, garycblack, Raistlen, Champiggy, akurski, MalcolmP, ole-1995a, Trisolis, peznut, Kibs, EurusD, Saskia11, ggwp, RobotChicken
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Comments

on 1. September 2026, 22:14 by Stabbers
good introduction to global entropy

on 1. September 2026, 05:09 by bugcat
what a spectacular puzzle! i really enjoyed the global entropy rule.

on 31. August 2026, 23:56 by Ceramics-Quintet6
certainly easier if you remember the global constraint..

on 31. August 2026, 11:13 by GT-R Penguin
Lovely methodical puzzle - thank you

on 31. August 2026, 05:22 by Chaossudokusplease
Very fun systematic solve. No step is too difficult but it was still very engaging for an “easy” puzzle, and not necessarily obvious where to look for that next step. Great job with the setting! It’s hard to strike that balance without it feeling mindless.

on 31. August 2026, 03:26 by SanFranSam
Advanced beginner here. It wasn't hard, but it was a bit time consuming as i had to slog my way through it cell by cell. So i gave it 1.5*

on 30. August 2026, 18:07 by Myfyr MJ
A very nice and easy puzzle.

on 30. August 2026, 15:32 by macintux
Easy, straightforward, very nice. I love negative constraints and coloring, so more like this please!

Difficulty:1
Rating:90 %
Solved:193 times
Observed:0 times
ID:000UMD

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Solution code:

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