Logic Masters Deutschland e.V.

Square Deal

(Published on 7. September 2026, 18:36 by ul-Rhymm)

Each digit, 1-9, appears exactly once in each row, column, and 3x3 region.

German Whisper: adjacent digits along green lines must have a difference of at least 5.

Entropy Lines: Along peach lines, each set of 3 consecutive digits must have one low (1/2/3), one medium (4/5/6), and one high (7/8/9) digit. Digits on a 2-cell line must be from different entropic groups.

Little Killer: Along diagonals, digits add to the indicated value.

Puzzle Link

Solution code: Row 1, left to right


Solved by jalebc, StefanSch, nocturnomath, Starlight, SKORP17, wuc, Bjd, jordanza, Gunkan, by81996672, XeonRisq, SeveNateNine, Crusader175, Snookerfan, Saltensity, SMM, FakeCristiano, QUGO, Miatc, zlotnleo, ... Andrewmi3, RebelSystem, Corey115, emoney1374, ___, MalkoMann2, tuckerbucket, Sonki, ofsmul, clamtrox, sacklunch, sze, cvil, faisalaak, SweJo, jlaitio, Berkals, PluckyVillain, Isael, goldpuffle
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Comments

on 9. September 2026, 05:14 by emoney1374
Brilliant puzzle!

on 8. September 2026, 17:48 by Franjo
Thank you very much for creating and sharing this beautiful puzzle.

on 8. September 2026, 12:39 by Saltensity
Some hard deductions for me and almost got stuck again near the end, but still a very minimalist and amazing puzzle :)

on 8. September 2026, 11:36 by Snookerfan
Gorgeous puzzle with a very satisfying solve path, thanks!

on 7. September 2026, 23:13 by wuc
Cool minimalistic entropy puzzle thx.

on 7. September 2026, 20:24 by StefanSch
Nice!

Difficulty:4
Rating:94 %
Solved:55 times
Observed:0 times
ID:000URG

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Solution code:

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