Logic Masters Deutschland e.V.

Blue morning glory

(Published on 3. July 2026, 08:53 by Lithium-Ion)

This puzzle is a combination of renban and region sum lines, which I personally would rate with a difficulty of 1.5 stars. Feedback is always greatly appreciated! The rules are as follows:

Normal sudoku rules apply. Box borders split blue lines into segments with the same sum. This sum may be different for different lines. Pink lines contain a set of non-repeating, consecutive digits in any order.

You can play this puzzle via the following link: https://sudokupad.app/prbwdt3za6

Solution code: The digits in row 8, read from left to right.


Solved by NeroChaos, jalebc, chippers, cornish-john, Krisonium, chis_r, slowthinker, varbrad, VeTaurus, anothermember, sss1145, Playmaker6174, mijq, dickey, Miatc, boggles, buzzard, Tarbs, Hiku, Jorava, ... StephenR, Andrewmi3, Strawbunny, Tompzini, MathingChar, abed hawila, adam001, pmatos, koiking, botteur, Shumpo, einolem, Khatru, 99jau99, Decapod, ignigomoreno, Pioooooo, gadgetgreen, ly_ra17, Devil
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Comments

on 4. July 2026, 04:26 by rictech
Smooth for me the whole way; good interactions between the constraints. I like your 1.5* assessment. I went with 2* for my rating. Thanks!

on 4. July 2026, 01:01 by VitP
easy enough to start.
middle section requires some really long chains (bifurcation), or something totally obscure

on 3. July 2026, 21:27 by michael_787
I go for a 2*. The break-in was easy, and the interactions between the constraints made for some interesting, but not always easy to spot logic.

on 3. July 2026, 20:49 by Snaques
Really enjoyable one! I think your initial 1,5* was spot on.

Those renbans just restrict so much that at least getting the number ranges into place was rather easy.

on 3. July 2026, 16:28 by Myfyr MJ
Very nice, 2 stars is about right.

on 3. July 2026, 12:32 by JVA
Very nice flow

on 3. July 2026, 11:52 by boggles
that was nice :)

on 3. July 2026, 11:35 by mijq
maybe 2* ?

on 3. July 2026, 11:24 by Playmaker6174
Felt like a good adrenaline rush throughout, thanks for this fun puzzle :)

on 3. July 2026, 10:59 by slowthinker
Nice interactions throughout. Well done :-)

on 3. July 2026, 10:59 by varbrad
Really fun!

on 3. July 2026, 10:56 by chis_r
Really fun solve path, great setting!

Difficulty:2
Rating:95 %
Solved:181 times
Observed:0 times
ID:000TKI

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Solution code:

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