Logic Masters Deutschland e.V.

Dual Doubles

(Published on 22. September 2025, 06:06 by oskode)

Taking yet another break from uploading my puzzles in order of creation. I hope you'll enjoy my latest puzzle, Dual Doubles. I've added a link to a monochrome version of the puzzle as well, if that's something you prefer. Have fun!



Rules:

  • Sudoku: Fill every cell with a digit from 1-9 such that no digit repeats in any row, column or 3x3 box.
  • Yin-Yang: Shade some cells such that all shaded cells are orthogonally connected and all unshaded cells are orthogonally connected. No 2x2 area is entirely shaded or entirely unshaded.
  • Values: A shaded cell's value is twice that of its digit. An unshaded cell's value is just its digit.
  • Arrows: The sum of all values along a blue arrow is equal to the value in the attached bulb.
  • Double Arrows: The sum of all values along a red line is equal to the sum of the values in the attached bulbs.

Click here to play online! (Monochrome version)


Ratings and comments are very much appreciated. Thank you for playing!

Solution code: Digits in shaded cells in row 3 (left to right) and row 7 (left to right)

Last changed on on 22. September 2025, 09:26

Solved by Aaravos18, Amedoru, gdc, jkuo7, Gilliatt, WvdWest, tgstar, clock, Mad-Tyas, Bjd, by81996672, vorash00, Chaka, karlmortenlunna, Shmartus, terrible_casserole, LehanLehan, MPQ, Gowgon, pmatos, abed hawila, syyyth, Tompzini, littlebluue, Asphodel, BloodFalcon, Baklin, SFP, Nemefish, anothermember, Akk1yyy, NorthCoastAsher, beansontoast_, sarabtx, yttrio, h5663454, kid, Altynbek , pepe74287, PuzzBmcg
Full list

Comments

on 28. September 2025, 20:05 by Baklin
Really enjoyed this one. Thanks for settng.

on 24. September 2025, 10:29 by Gowgon
Incredible puzzle ! Thank you for setting

on 23. September 2025, 15:02 by VitP
no special techniques needed, just a lot of effort.

on 23. September 2025, 08:03 by Chaka
Very nice!

Difficulty:3
Rating:95 %
Solved:40 times
Observed:0 times
ID:000PBA

Puzzle variant Variant combination Online solving tool Shading puzzle

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Solution code:

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