Ninety One
(Published on 31. August 2023, 16:35 by NotThatItMatters)
Ninety One
This puzzle is dedicated to the most brilliant, and patient, woman I will ever know, my mom. She turns 91 this year, meaning she was born in 1932. These are the rules.
Normal sudoku rules apply, meaning the digits 1 to 9 appear once each in every row, column and 3x3 box.
The 8 five-cell horizontal and vertical cages each have a value of 91 obtained by Horner's method. If the digits in a cage are A-B-C-D-E, left to right or top to bottom, the value of the cage is
91 = (A * B + C) * D + E
Each of the eight cages, like mom's children, is a unique set of digits.
The six shaded cells in the top right and the six shaded cells in the bottom left of the grid are each a pair of overlapping 1-9-3-2 snakes. These snakes go orthogonally or diagonally from cell to cell.
Solve Online : Answer check is also enabled if you use blue or green color digits.
Solution code: Provide the digits of column 3 and column 7 of the puzzle solution in one 18-digit string without spaces.
Comments
on 31. August 2023, 20:41 by NotThatItMatters
I also posted this on the Discord server for CTC. The CTC link I made is https://tinyurl.com/NinetyOne91
on 31. August 2023, 19:29 by Ragna
@ Nylimb Thank you very much, dear Nylimb! Ragna
on 31. August 2023, 18:24 by Nylimb
Thanks for the puzzle, and happy birthday to your mother!
@Ragna: Here's a CTC link:
https://tinyurl.com/3sap7ztw
More generally, you can use
https://marktekfan.github.io/sudokupad-penpa-import/
to translate most penpa links to CTC links.
on 31. August 2023, 18:07 by Ragna
This is a very interesting ruleset and I like to solve the puzzle. But I'm not able to use Penpa. Sorry.
Is there perhaps a friendly person, who can change the puzzle into a CTC version? Thank you very much!
