Greater Yin Than Yang
(Published on 17. August 2026, 18:23 by PrissyP)
Sudoku:
Normal Sudoku rules apply.
Yin Yang:
Shade some cells such that all shaded cells are orthogonally connected, all unshaded cells are orthogonally connected, and no 2x2 area is fully shaded or fully unshaded.
Greatest Lines:
On each line, the value of every shaded cell is greater than the sum of any two unshaded cells on that line. There are always at least 1 shaded cell and 2 unshaded cells on every line.
Solution code: Row 9, left to right
Comments
on 27. August 2026, 14:42 by Misioder
amazing puzzle I feel like this would be a 5* for a person inexperienced with yy but luckily I have solved some of those. Thanks for my 3rd 4*
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Congrats on solving it, YinYang definitely gets quite a lot easier when it's not the first one you are solving. It is still a tough puzzle, however.
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on 27. August 2026, 11:12 by valacd
Very nice puzzle with brilliant logic. For me it was on the easier side (3*) as I did some other yin yang sudoku recently. Enjoyed solving it a lot!
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Thanks! I am glad you enjoyed it so much, sometimes puzzles just click and feel easier than they are.
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on 26. August 2026, 15:51 by wuc
Brilliant. Feels crazy that these weak restriction make it solvable. Awesome fun. Added to favorites.
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Thanks for the kind words. I am glad you enjoyed the Puzzle.
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on 26. August 2026, 01:40 by SudokuHero
6 7
on 23. August 2026, 03:54 by XuanZzz
Beautiful puzzle! Somehow at first I thought it was ">=", glad that I found out soon XD
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Luckily you didn't only realize it at the end and had to redo everything.
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on 21. August 2026, 07:13 by Exigus
Amazing construction, thanks!
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Thank you for playing it!
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on 20. August 2026, 17:49 by Djirt
Спасибо, что поделились этим шедевром!
on 20. August 2026, 14:56 by BHUNTER47
This was brilliant. I'd love to see it featured on CTC.
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Thanks. I wouldn't mind seeing one of them tackle it, that's always fun.
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on 19. August 2026, 17:23 by galium_odoratum
Brilliant puzzle! I already had some experience with YY & Greatest Lines, thus 3* for me. But without, this would be a 5* for sure.
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Thank you. I agree, if you have not done some puzzles with those constraints it is very hard.
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on 19. August 2026, 16:55 by Agent
Great fun, neat solution path!
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I'm glad you enjoyed it.
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on 19. August 2026, 15:10 by littlebluue
This was absolutely delightful to solve!
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I'm happy to hear that.
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on 19. August 2026, 09:24 by Chaka
What a brillant puzzle! I love CC sudoku and this one definitely stands out. Thanks a lot for setting and sharing!
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Thanks for the kind words, I'm glad you enjoyed it so much.
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on 19. August 2026, 03:45 by Thanos13
Smooth and fun! I loved the combination of the two rules! Thank you.
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Glad you enjoyed it, thank you.
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on 18. August 2026, 21:15 by ViKingPrime
Simple idea with a brilliant execution.
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Thank you!
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on 18. August 2026, 17:28 by Snookerfan
Brilliant puzzle! The ruleset was clear, but somehow I applied it wrong a few times. Midsolve I was drawn to a certain part of the grid, but the next step forward was in a very different part. That took me a while to find, my mistake. So no criticism, just a great puzzle, thanks!
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I agreed that one step is a little hidden and it is not obvious how to continue at that time at all. I'm glad you still enjoyed the solve, even with the small hiccups. Thanks for the kind words.
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on 18. August 2026, 17:13 by Franjo
Thank you very much for creating and sharing this wonderful YY-hybrid. These Greatest Lines offered some pretty fresh logic.
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Setting with those Line was a Lot of fun. I'm glad you also enjoyed solving with them. Thank you!
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on 18. August 2026, 14:39 by Myxo
Awesome!
on 18. August 2026, 07:27 by ralphwaldo1
Flowed very nicely, great puzzle!
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I'm glad you enjoyed it. Thanks for solving!
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on 18. August 2026, 00:16 by sujoyku
Awesome puzzle! Thank you, PrissyP!
on 17. August 2026, 20:23 by The Pi Guy
One of the all-time great Yin Yang puzzles. An absolute masterpiece and a complete joy from start to finish. ❤️ To any solvers that haven’t had a go at solving this puzzle, you MUST! :)
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Woah, what a super nice comment, thank you! It makes me very happy that you enjoyed solving this so much, that is what makes setting puzzles so special to me ❤️
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on 17. August 2026, 19:01 by Prof.Dori
This was such a joy to solve. It had really interesting steps from start to finish!
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Thank you for the prompt that made me set this, your feedback during testing and this kind comment. I'm glad you enjoyed the puzzle and had a blast setting it myself.
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