Logic Masters Deutschland e.V.

Inequalities

(Published on 3. July 2026, 00:00 by addie)

Standard 9x9 sudoku rules apply.

German Whispers: Adjacent digits along a green line have a difference of at least 5.

Renban Lines: Digits along a pink line contain a consecutive set of digits in any order.

Maximum/Minimum: Cells with outward-pointing arrows are larger than their orthogonally adjacent cells. Cells with inward-pointing arrows are smaller than their orthogonally adjacent cells.

Solve on Sudokupad

Solution code: Row 1

Last changed on -

Solved by Hiku, ebulku, JohanW, horia, outfromshadows, lina_hyena, AaronSmith, jalebc, ukjohnd, RickiFerrara, allama, flaemmchen, abadx, superkinkel, NeroChaos, forsen, TeddieMilo, Miatc, mijq, XhcnoirX, ... EmX68, aldango, GenKavik, mezkur7, cornish-john, PuzzlePatzer, BorisTheSnake, Kirra, abed hawila, Vaurien, Mathemagier, ly_ra17, Montikulum, adam001, ManuH, LLX, Baklin, Janie, H.I. McDunnough
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Comments

on 10. July 2026, 02:31 by Jrosas
Puzzlepatzer featured this puzzle on YouTube at

https://youtu.be/97qY2PPTeFU?is=9HwU-06m-wq_DTuo

Viewer comments include “wonderful puzzle” and “that was stunning”

on 6. July 2026, 13:03 by galium_odoratum
Fun puzzle, 2.5* for me.

on 4. July 2026, 08:41 by Jrosas
Great puzzle.

on 3. July 2026, 12:43 by TeddieMilo
Agree with others. Nice puzzle but it's not 1*. TQ.

on 3. July 2026, 11:45 by superkinkel
What a surprise, an Addie-Puzzle without a chess constraint. Really loved it, like virtually all your constructions.

However this is certainly 2*, if not even bordering on 3*. Working out the interactions between the constraints is a satisfying experience, but certainly beyond very easy.

on 3. July 2026, 11:33 by abadx
2* for me. Although constraints are quite common, interactions are not really straighforward to spot. I specially like how minimum cell in box 1 settles down a few things.

Difficulty:2
Rating:92 %
Solved:71 times
Observed:0 times
ID:000TIS

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