Killer Catalyst
(Published on 20. October 2022, 03:45 by mnasti2)
Rules: Normal sudoku rules apply. Additionally, one digit is a 'catalyst.' This digit is to be determined by the solver. Any time this digit appears in a killer cage, it does not contribute its value to the sum, but instead doubles the sum of all the other digits in that cage. Digits cannot repeat in a cage.
For example, if '7' were the catalyst, then a [1 4 7] cage would display 10 ((1+4)x2), a [1 4 8] cage would display 13 (1+4+8), and a [7 9] cage would display 18 (9x2).
Play on SudokuPad
Solution code: Row 6 (9 digits, left to right)
Comments
on 23. November 2023, 07:07 by CptHampton
Incredibly fun and well-executed idea. No single piece of logic was insurmountable, but I definitely had to chip away at it very thoughtfully.
on 20. October 2023, 21:01 by mrjide80
Loved it. Great logic.
on 7. October 2023, 03:58 by sort
quite hard for me but i enjoyed it
on 18. January 2023, 09:17 by Piatato
Very nice puzzle! Fun concept, great execution. :-)
on 20. October 2022, 21:08 by sujoyku
Thank you for this great puzzle, mnasti2! I found it very challenging, but it is such a pleasure to find out who the catalyst is. Solving was huge fun!
