Logic Masters Deutschland e.V.

YinYin Yang

(Published on 14. May 2025, 22:15 by Hunsar)

Second puzzle, so I've doubled the Yin!

Normal Sudoku rules apply.

Yin Yang: Shade some cells such that all shaded and unshaded cells each form an orthogonally connected region. Additionally, no 2x2 region may be entirely shaded or unshaded.
Double the Yin: For the purpose of other rules, all shaded cells have a value of twice the digit in their cell.
Killer cages: Digits in cages may not repeat and cell VALUES must sum to the number in the top-left corner.
Kropki dots: VALUES across white kropki dots must differ by 1. VALUES across black kropki dots must be in a 2:1 ratio.

Difficulty has been set to 3 stars, but might be harder. Yin Yang puzzles are one of my favourites and this was a lot of fun to set!

Solution code: digits in row 1

Last changed on on 15. May 2025, 00:59

Solved by SKORP17, pmatos, alexsmart, gdc, dogfarts, bansalsaab, rameshsrivats, Piff, mcsmauingf, Jeraldo82, Asphodel, IntegralHamster, tgstar, lune, liushong, trashghost, pookster, Alce, Exigus, ole-1995a, ... little_arturo, Christounet, THef of Time, bulguline, sehringdipity, Askloomok, elpadrinoIV, gUBBLOR, joelth, Doc Liu, umiaq, OJPS, Joyofrandomness, softie, ManuH, Frank Puzzles, SamWHE, nixxo, Geb
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Comments

on 17. May 2025, 17:48 by nunc
I thought this a hard puzzle, but every deduction was smooth and logical. Thanks for sharing.

on 17. May 2025, 04:06 by Majoca
Awesome :)

on 16. May 2025, 21:53 by jqhc
Very fun! I thought the 3 stars was appropriate.

on 15. May 2025, 21:04 by BorisP2101
Amazing puzzle :D Thanks for setting.

on 15. May 2025, 12:21 by Jeraldo82
Very nice puzzle!

on 15. May 2025, 03:50 by VitP
another fine yy puzzle

on 15. May 2025, 00:59 by Hunsar
Fixed typo!

Difficulty:3
Rating:97 %
Solved:79 times
Observed:6 times
ID:000NDM

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Solution code:

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