Products of Parity
(Published on 25. September 2025, 15:32 by Md88keys)
by Md88keys
Play in Sudokupad
Normal sudoku rules apply.
Parity lines: Digits on a red line alternate parity (odd/even).
Red lines are also product arrows. The product of the digits on a red arrow outside the cage (multiply all digits) equals the two digit number on the red line inside the cage (read left to right or top to bottom).
Digits in a cage sum to the total given.
Solution code: Column 1 top to bottom
Comments
on 27. September 2025, 17:35 by nunc
Just after finishing I realized that I might have used the parity of the line. Works also without it. I love novel ideas like this.
on 26. September 2025, 22:57 by dzamie
Very clever! The parity line rule did make some things about it very easy, though I'm not complaining. Always nice to flex my factoring skills.
It does make me wonder after a variant where the arrows *aren't* parity, though...
Not entirely sure why this is voted 2*. Great puzzle, but not that hard.
on 26. September 2025, 15:39 by Franjo
Nice and easy. Thank you very much for creating and sharing this lovely math puzzle.
on 25. September 2025, 22:39 by Exigus
Very cool, but I totally forgot the parity rule, still solved but required a bit of math. Thanks!
on 25. September 2025, 17:56 by Ragna
Fun puzzle! Thank you. :-)
on 25. September 2025, 16:52 by XhcnoirX
Very nice! I didn't need to use the parity constraint tho.
on 25. September 2025, 16:02 by Mad-Tyas
Fun puzzle!
