Foggy Parindromes
(Published on 30. June 2025, 06:30 by microwavable)
Welcome to my first real sudoku!
I've played around with setting before but only using the tools on websites and never focusing on flow or the player experience.
I really wanted to change that so I decided I'd try to make a puzzle using dynamic fog - and this is it!
I hope you enjoy and please leave any thoughts or suggestions in the comments:)
Rules:
SUDOKU: Normal Sudoku rules apply. (place the digits 1-9 in each row, column, and box)
PARITY: Digits in adjacent cells on a red parity line must alternate between even and odd.
PALINDROME: On a grey palindrome line, cells equidistant from the center of the line must contain the same digit.
(The center of a palindrome line will be denoted by a grey square, if given)
KILLER: Digits in dotted killer cages may not repeat and must sum to the number in the top left corner.
XV: All cells joined by an X must contain digits that sum to 10. All cells joined by a V must contain digits that sum to 5.
(ALL Xs and Vs are given)
DYNAMIC FOG: In addition, the grid is partially covered with fog. Placing correct digits may uncover new areas and clues.
Solution code: Will be given upon completion in SudokuPad:)
Comments
yesterday, 07:32 by MattJones
Good stuff. Didn’t help myself by missing the negative constraint for 10 minutes!
on 17. July 2025, 04:25 by ParaNox
I liked the puzzle, I just got extremely confused by the rule about the "palindrome square" as the link in the German version does not contain such a square, which made me believe that r3c3 could *not* be the middle of the palindrome.
I'd be grateful if you could fix that. :) Otherwise, as I said, nice puzzle.
on 30. June 2025, 16:15 by GorgeousNicko
A grey square usually (in my experience) indicates an even digit. The setter is entitled to specify a different meaning but using a less misleading symbol (perhaps a grey triangle) would help avoid this confusion.
on 30. June 2025, 15:01 by microwavable
another ambiguiity change - i hope this fixes it-
on 30. June 2025, 15:00 by ACK
Great puzzle, Loved it
on 30. June 2025, 11:26 by Myfyr MJ
Square being in middle of palindrome wasn’t totally obvious
on 30. June 2025, 09:22 by VitP
are you supposed to just GUESS that r3c3 is the middle of a palindrome ? (*)
there seems to be no valid theoretical or practical reason to do so.
incidentally, the 13 cage is redundant. ditto for the box 3 cage
(*) in the position where 10 digits, plus many candidates, have been obtained.
on 30. June 2025, 08:31 by Anson
I agree with the r3c3 comment from Crusader175, you can guess that it is probably the case you technically it might not be.
Very fun puzzle though!
on 30. June 2025, 08:30 by microwavable
addressed ambiguity with a palindrome line
(thank you for pointing it out to me!)
on 30. June 2025, 07:42 by JoeyJoeJoe
00:23:44 for me - nice puzzle.
