Breakeven (Yin Yang Parity Sudoku)
(Published on 20. September 2022, 09:00 by Agent)
Can't have too many Yin Yang hybrids! In this one I revisited the idea of further restricting killer cages with Yin Yang shading. I thought of a few alternatives, but the ruleset below seemed the most promising. It should be fairly approachable as well - I believe it lies somewhere in the high 3 / low 4 territory.
Rules
- Normal sudoku rules apply.
- Normal Yin Yang rules apply. That is, shade some cells in the grid such that all shaded cells are connected and all unshaded cells are connected. No 2x2 box may be fully shaded or fully unshaded.
- Digits in a cage cannot repeat and must sum to the small clue in the top left corner.
- In cages, all shaded cells must contain even digits, and all unshaded cells must contain odd digits.
Puzzle links
Have fun solving!
Solution code: Row 2 (from left to right) then column 9 (from top to bottom)
Comments
on 11. August 2024, 16:04 by ibag
Great fun!
on 2. February 2023, 13:11 by Grymbarth
Very nice puzzle :D
thanks to regularly watching CTC I saw the breakin almost immediately, but then thought I had broken the puzzle and sat there for like 20 minutes questioning my sanity until I realized that parity only matters inside the cages XD .. that's what you get for using the "regular" coloring for even/odd ^^
From then on it was a breeze and a very nice solve.
Thanks a lot for the fun! :)
-- Thanks Grymbarth! I'm glad you enjoyed this puzzle!
on 26. September 2022, 06:41 by Agent
Thank you @Xendari @marcmees @wenchang @RandallPepperidge!
on 25. September 2022, 22:03 by RandallPepperidge
Splendid!
on 22. September 2022, 23:50 by wenchang
Very nice yinyang!
spoiler alert!
https://youtu.be/NgCAKzohyjU
on 21. September 2022, 11:42 by marcmees
very nice. thanks.
on 21. September 2022, 02:04 by Xendari
I'm really enjoying this yin yang series :) the opening was very well telegraphed and the puzzle flowed nicely. Thank you!
on 21. September 2022, 01:22 by Agent
Thank you @cdwg2000 @RJBlarmo @Snookerfan @Dandelo @Steven R @Christounet @MagnusJosefsson @DVFrank @StephenR @DaniK @The Tesseract @halftime for the kind words on my puzzle!
on 20. September 2022, 20:10 by halftime
Nice one! The break-in I found was especially satisfying and flowed quite nicely from the ruleset. I'd put it at about 3* for me. Thanks for sharing!
on 20. September 2022, 19:45 by The Tesseract
Great puzzle, but I found it harder than Antithesis which is rated higher (4 stars). Thanks for the submission!
-- Interesting, which part did you find more challenging? I suppose the break-in?
on 20. September 2022, 18:27 by DaniK
Super fun and smooth puzzle, thanks for sharing!
on 20. September 2022, 17:01 by StephenR
One day in the distant future we might have too many Yin Yang hybrids, but we're not there yet. Thanks Agent, for a welcome addition to the stock.
on 20. September 2022, 14:15 by DVFrank
Very nice! :^)
on 20. September 2022, 13:48 by MagnusJosefsson
Very nice approachable puzzle, thanks Agent!
on 20. September 2022, 11:47 by Christounet
A great addition to your Yin Yang serie ! Very approchable if you're familiar with the YY logic.
on 20. September 2022, 11:04 by Steven R
A lot of fun, thanks!
on 20. September 2022, 10:58 by Dandelo
Very nice. Combined with Yinyang even Sudokus are fun.
on 20. September 2022, 10:58 by Snookerfan
Great one again! Thank you so much, I enjoyed it a lot.
on 20. September 2022, 09:58 by RJBlarmo
Nice one, liked the logic in the 2x2 18 cage!
-- :-)
on 20. September 2022, 09:21 by cdwg2000
I am very happy to test this Agent's relatively easier Yinyang sudoku. Very good new idea, look forward to new puzzles.
