Dioscuri
(Published on 15. August 2022, 19:16 by jwsinclair)
Normal sudoku rules apply.
Digits in shaded cells in columns 2, 5, and 8 indicate the column in which the digit 2, 5, or 8 (respectively) appears in that row.
Digits in cells with a gray circle must be odd.
Digits in cells with a gray square must be even.
Digits in cells separated by a V sum to 5.
Digits in cells separated by an X sum to 10.
All possible V's and X's are given.
F-Puzzles | CtC
Solution code: row 1, row 9 (18 characters, no spaces)
Comments
on 3. December 2022, 21:41 by SilviaF
Amazing puzzle! Thank you!
on 16. August 2022, 06:59 by Chefofdeath
Beautiful puzzle :) Although definitely easier than 4 stars! I loved the use of the 258 columns and negative constraint!
on 16. August 2022, 02:34 by kjholt
I found it a bit easier than 4 stars, but excellent puzzle. I like the occasional negative constraint puzzle and definitely like the indexing. Well done!
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Thanks! The initial difficulty rating is just a guess on my part, so I'll be interested to see where it lands after enough solvers have given their ratings. I was on the fence between 3 and 4.
on 15. August 2022, 22:28 by Onkel_Dagobert
That was fun! Hardly have I ever experienced more completely different levels of difficulty within a single puzzle - quite challenging but still approachable break-in, very difficult in the middle game and just a fill-in at the end.
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Thanks!
on 15. August 2022, 20:56 by C.C.
My comment got deleted for some reason but once again, awesome puzzle!
on 15. August 2022, 19:17 by jwsinclair
Thanks for solving and rating! If you or someone you know might enjoy a weekly set of puzzles that are a bit easier than the ones here, but still engaging and challenging, check out Artisanal Sudoku. Primarily killer sudokus, often in combination with other rulesets.
https://artisanalsudoku.substack.com
