x, x², and x³
(Published on 11. May 2025, 05:38 by RockyRoer)
The Rules:
[Sudoku] Fill each row, column, and 3x3 box with the digits from 1 to 9 once each. Entering enough correct digits will eventually reveal more of the puzzle.
[Product Lines] For each red line, the digits on the line multiply to x, x², and x³, where x is a number that must be deduced. One of the products must be entered in the red circle as a three digit number read from left to right.
For each yellow line, the digits on the line multiply to y, y², and y³, where y is a number that must be deduced. One of the products must be entered in the yellow circle as a multi-digit number read from left to right.
For each blue line, the digits on the line multiply to z, z², and z³, where z is a number that must be deduced.
The Puzzle:
Try it on Sven's Sudoku Pad
Solution code: The numbers on the longest blue line, in order, from left to right.
Comments
on 13. August 2025, 19:12 by Adrian71
Lovely puzzle, very cleverly set, a joy to solve!
on 13. May 2025, 16:16 by madhupt
I found this very very interesting. It all really fell into place using very intricate deductions. Thanks for sharing.
on 12. May 2025, 02:37 by RockyRoer
Reworded solution code
on 11. May 2025, 20:33 by Bankey
What a lovely idea!! Thanks, @ RockyRoer :).
on 11. May 2025, 16:56 by RockyRoer
Upon some comments from solvers, realized that my addition of fog to the puzzle made one step vague. I've updated the fog lights to smooth that step out to the intended difficulty.
on 11. May 2025, 16:31 by Franjo
Fascinating puzzle, but: I got totally stuck at the same point as EnPee. Seemed there were two different ways to go on. I tested both of them hoping to find a contradiction but didn’t get one. Anyway, thank you very much for creating and sharing another lovely math-Sudoku.
Reply: Sorry - I didn't realize that the lack of information about the size of the number was as important as it was. I've updated the puzzle to add fog reveals to smooth that out.
on 11. May 2025, 15:16 by EnPee
I've got the products of the red and yellow lines and filled these in, but the yellow circle seems ambiguous without the fog being cleared from an extra cell. I could be missing some sudoku?
Reply: Sorry - last minute on a whim I decided to add fog, and I realized that I didn't reveal as much information as I needed to. I think it's smoother now that the link has been updated.
-Thanks, that's much better now. And thanks for another great maths sudoku!
