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Entropic Waterfall

(Published on 19. February 2026, 17:42 by SirMoose)

Entropic Waterfall
by Sir Moose

Normal sudoku rules apply.

Entropy Columns: Every 3 consecutive cells along each column must contain a low digit (1,2,3), middle digit (4,5,6) and high digit (7,8,9).

Region Sum Lines: Box borders divide each blue line into segments with the same sum. Different lines may have different sums.

Link on Sudokupad

This might be a one star if you are very comfortable with the global constraint. I hope you enjoy!



Solution code: Top row Left to right


Solved by jalebc, cornish-john, noodlehead, Onyx, Fizz, anthe95, gdc, bugsduggan, Hrothan, PippoForte, SKORP17, HeyItsErin, Willkimo, totem_mapr, jwsinclair, phantom_ciel, TheCutmaster, Krisonium, ... ManuH, Romordis, catcat, LuridGraph, Plastosia, Mgbator, Interloper, Quetzal, SpringPeonies, Chiefredhawk, chaurasiyadhruv, CSStead, deangaudet, Johannes Quack, AdamDempsey, arteful, abihummel
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Comments

on 25. February 2026, 13:10 by Dendr
A bit confusing at very beginning. But when you have found the right place to start coloring, the rest is quite easy and enjoyable.

Last changed on 24. February 2026, 22:10

on 24. February 2026, 22:09 by PancakePie
2* sounds right! That was fun and colorful. Thank you for this!

on 24. February 2026, 00:19 by davidz32z
Very clever! Loved the global constraint and found it a bit challenging at times. Thanks for a great puzzle!

on 21. February 2026, 21:01 by Aidan488
Very clever!

on 20. February 2026, 18:51 by BorisTheSnake
Loved it - I think 2* is fair. Underrated puzzle for sure :)

Difficulty:2
Rating:93 %
Solved:124 times
Observed:4 times
ID:000RJA

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Solution code:

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