True Yin, False Yang
(Published on 5. May 2026, 00:52 by The Bard)
Normal Sudoku rules apply. Place the digits 1-9 in each row, column and box without repetition.
Yin Yang: shade some cells so that all shaded and unshaded cells form 2 form orthogonally connected areas such that no 2x2 area is entirely shaded or unshaded, and all the clues values in the unshaded area are liar clues and not true. Some cells are shaded and therefore true clues. Each clue is either fully shaded or unshaded.
XV Pairs: Digits separated by an X sum to 10. Digits separated by a V sum to 5.
Arrow: Digits on an arrow must sum to the digit placed in that arrow's circle.
Kropki Pairs: Digits separated by a black dot must be in a 2:1 ratio. Digits separated by a white dot must be consecutive.
If you like this puzzle you may enjoy some of my other puzzles too, click HERE to see the other puzzles I have made.
Solution code: Only shaded/true digits on row 5, do not include digits that are unshaded/liars.
Comments
on 30. June 2026, 21:22 by wuc
Nice yy puzzle. 2.5* to me. Great setting thx.
on 28. June 2026, 05:45 by bleppie
Very clever setting with a nice solution. It might be helpful to clarify that the pre-shaded squares are in fact yin-yang shaded as per the instructions. Thanks!
on 8. June 2026, 12:39 by QuiltyAsCharged
What fun! I assumed the grey cells were pre-shaded, which in fact they are.
on 2. June 2026, 04:27 by iEtsh
I didn't like that honestly , it is not 2 stars at all
on 20. May 2026, 10:09 by PancakePie
Thought I wouldn't be able to make it, but you set this up perfectly! I felt very carefully and kindly guided throughout. Thank you!
on 15. May 2026, 12:37 by Lithium-Ion
Amazing puzzle, thanks!
on 13. May 2026, 16:05 by Dendr
Usually I try to avoid Yinyang puzzles, but this one was really delightful. I almost stuck at one moment, but it's only because I forgot that liars are lying.
on 12. May 2026, 09:28 by Nemefish
Very fun mix of constraints.
on 9. May 2026, 10:30 by VitP
yin yang yay
NOT A LIE
on 7. May 2026, 12:30 by sparkymanu
That was so much fun, the break-in was very satisfying, loved it, thank you!
on 6. May 2026, 22:03 by greemi01
That was fun!
on 6. May 2026, 11:07 by firespire
Really cool.
on 6. May 2026, 09:18 by Snaques
Took me a while to truly get all the rules, but once I got going it was really fun and nicely flowing puzzle.
on 5. May 2026, 18:29 by Mizuki
Amazing! I like the mix of shading and finding out the numbers at the same time.
on 5. May 2026, 16:30 by Mizuki
Amazing! I like the mix of shading and finding out the numbers at the same time.
on 5. May 2026, 15:38 by Snookerfan
Beautiful and smooth puzzle, thanks!
on 5. May 2026, 14:22 by Franjo
Thank you very much for creating and sharing this nice YY-puzzle. Usually I don’t like liar-puzzles, but within this ruleset they work surprisingly fine!
on 5. May 2026, 12:56 by Exigus
Smooth, thanks!
on 5. May 2026, 06:38 by jhow25
what do grey cells mean?
on 5. May 2026, 04:08 by rameshsrivats
Thanks for the clarification. Very nice puzzle. Pleasure from start to finish.
on 5. May 2026, 01:34 by rameshsrivats
So, if a clue is partly shaded and partly unshaded, is it true or false?
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I added clarity. All clues are either shaded or unshaded, never both.
The Bard
on 5. May 2026, 01:03 by The Bard
updated link
on 5. May 2026, 01:00 by ZornsLemon
The link directs me to "Positive Negativity" on CTC
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That was weird, it looked like the right link but... It should work now.
The Bard
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Thanks!
