Pretty Mandala / Hübsches Mandala
(Published on 1. June 2026, 14:45 by PDN777)
Normal sudoku rules apply. Standard region sum, Nabner and Kropki (no negative constraint) rules apply. (The digits along a blue region sum line must have the same sum in each 3x3 box entered by the line. If a digit appears on a gold Nabner line, then the digits consecutive with it must not appear on that line. Also, digits may not repeat on a Nabner line. Neighboring digits marked with a white Kropki dot are consecutive. Neighboring digits marked with a black Kropki dot have a 2 to 1 ratio. Not all dots are given.). I think this puzzle is 1.5 stars out of 5 for difficulty for many solvers (actually, a GAS [genuinely approachable sudoku] if you are familiar with the rules). As always, comments welcome. Thanks!
Click here to play on F-puzzles
Solution code: First row of puzzle, and fourth column of puzzle (read top to bottom). Enter as a string of 18 digits, no spaces.
Comments
today, 09:51 by Phandor
I’ll never understand how anyone can be so narrow-minded as to try to stop cheating on a puzzle site—as if it was the world mind games or something. It really doesn't matter a damn who solves the puzzle or how many people do it. An 18-digit code is a nightmare for mobile users. People who post things like that ought to be banned from the site themselves.
on 7. June 2026, 17:53 by PDN777
TY for the shout out, VeTaurus. :-) And Playmaker, good to see you again! I hope it wasn't the code leading to the rating -- I was thinking people have become tired of the more traditional rulesets.... also, I'm still getting warmed up after a long hiatus! :-)
on 5. June 2026, 14:33 by VeTaurus
Very nice puzzle.
Good to see you back, PDN777 :-)
on 2. June 2026, 02:46 by Playmaker6174
A bit trickier near the end indeed, but it was a fun breakfast puzzle :)
(but Istg, if this puzz has a lower rating because of the code alone then y'all are petty as hell, such a damn terrible excuse.)
on 1. June 2026, 22:11 by PDN777
Thanks for the solves. And good to know about the 18 digit codes: when I first started years ago, I thought it was excessive, and I was rebuffed! Glad customs have changed...
on 1. June 2026, 22:05 by JVA
Please, it's 2026, we're long past the dark age of 18 digit solution codes
on 1. June 2026, 18:42 by Myfyr MJ
Very nice and easy puzzle
on 1. June 2026, 17:07 by ygznsl
no need to add solution code as 18 digits.
