Gray Areas
(Published on 20. April 2022, 12:00 by 10feet)
Gray Areas
A Killer Sudoku with a special cage sum constraint.Rules
Normal Sudoku rules apply.Digits in cages cannot repeat and sum to a value to be determined by the following rules. The sums of any two orthogonally adjacent cages must either be consecutive or have a ratio of 2:1.
Links
f-puzzlesCtC
Solution code: Enter the digits of the 3rd row left to right followed by the digits of the 6th row left to right.
Comments
on 21. April 2022, 10:58 by Tilberg
I just replayed it and can confirm: the logic is sound, and there's no deadly pattern anywhere.
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Thank you for doing this. I'd have really hated to post a broken puzzle and this helps remove any doubt.
on 20. April 2022, 20:20 by deltameth
Hm, but the solution is not unique, there is a deadly pattern in r1 and r2... Am I missing something?
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I didn't intend for multiple solutions, but I might have made a mistake. Can you post a hidden comment with the top two rows of your alternate solution so I can check?
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I went ahead and double checked my logic. While there is a fairly difficult deduction halfway through (so the 5 star difficulty), I verified the puzzle unwinds without a deadly pattern once that deduction is made. Without anything further to go on I will state for the other solvers that I still believe this to have a unique solution until proven otherwise.
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10feet, my bad! I found an error that caused deadly pattern. The puzzle is clean, I'm sorry for confusion.
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Thanks for getting back. I just really wanted to make sure I wasn't wasting people's time with a broken puzzle. We all make mistakes from time to time.
on 20. April 2022, 16:51 by Tilberg
Thanks!
