Parity Paradox
(Published on 14. August 2023, 18:54 by marty_sears)
This was inspired by the fantastic puzzle 'Chromosomes' by Bellal and The Pedalling Pianist.
Rules:
- Normal sudoku rules apply.
- Each line within a 3x3 box has the same total, which is displayed in yellow in that box. (2-digit yellow totals read from left to right.)
- The digit in the purple diamond indicates how many of the yellow totals have the same parity (oddness/evenness) as itself.
Click here to play on the CTC app
Click here to watch Simon's solve on CTC
Click here to see how I set the puzzle
Please leave a comment if you enjoy :)
Solution code: Row 6, from left to right
Comments
on 9. August 2025, 05:04 by MysticMan
Lovely puzzle!
on 3. March 2025, 13:12 by Asparagus
I really enjoyed the flow.
Slightly anti-climactic when I solved the diamond - but jeopardy finishing the rest of the puzzle in case I'd made a mistake!
Yet another brilliant puzzle!
on 3. January 2025, 13:34 by Liamhere
Now I realize the importance of solving Diophantine equations. Great puzzle!
on 21. August 2023, 22:23 by jellef
There are a couple of beautiful consequences of the ruleset and the positioning of some elements, that was brilliant. It challenged me for many hours.
on 15. August 2023, 00:38 by Ragna
What a wonderful puzzle! Every box has it's own little secret. And the diamond is a real jewel.
Thank you for this unusual - but very pretty - idea. :-))
on 14. August 2023, 20:37 by ymhsbmbesitwf
Lovely deductions everywhere you look, very nice!
