Logic Masters Deutschland e.V.

Lub Dub

(Published on 16. June 2025, 16:29 by ChinStrap)

Just playing around with duality. I hope you enjoy!

Click the image to play

Rules:

  • Normal sudoku rules apply.
  • All lines are both between lines and modular lines (circles included in the modular lines).
  • Between Lines: Digits on a between line must be strictly between the digits in the circles at the ends of the lines.
  • Modular Lines:: Every 3 consecutive cells on the line must contain a digit from each of {1,4,7}, {2,5,8}, and {3,6,9}.
  • The inequality points to the smaller of the two digits.

All feedback (positive or critical) appreciated!

Solution code: Row 9, left to right (9 digits)


Solved by Malakree, mellowrobinson, KlausRG, jalebc, starfall, sujoyku, SKORP17, StefanSch, keesh, OutOfMyMindBRB, sorryimLate, NEWS, tuoni2, karlmortenlunna, aqjhs, Breaduko, Nell Gwyn, ofsmul, avishai, Bjd, ... Exigus, lianarox, Cypher, MarthaB, vorash00, sehringdipity, SparklePuzzle, parkinson, Ikke Moon, Flinty, separovich, egglet, benjaminc247, fauxturtle, mcs131313, Crusader175, joelth, Calvinball
Full list

Comments

on 18. June 2025, 10:51 by vorash00
Amazing logic

on 17. June 2025, 21:15 by Exigus
Amazing. Thanks!

on 17. June 2025, 07:56 by MSDOS
Very fun and intricate coloring puzzle! Lovely interactions on the line duality!

on 16. June 2025, 19:09 by keesh
My biggest problem with duality like this is choosing between letters and colors and end up using both and make a mess ;)

But once i finally settled on a scheme and made a few deductions it flowed very nice

on 16. June 2025, 17:57 by sujoyku
Beautiful puzzle! This has been tremendous fun all the way from the start to the satisfying conclusion. Thank you, ChinStrap!

Difficulty:3
Rating:93 %
Solved:44 times
Observed:6 times
ID:000NTJ

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Solution code:

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