Parity Mirror
(Published on 2. May 2022, 04:41 by zegres)
Parity Mirror
Rules:
- Normal Sudoku Rules Apply.
- Negative Diagonal: Digits do not repeat along the marked diagonal.
- Parity Mirror: Marked diagonal reflects odd/even parity on each side.
(For example: If R6C2 is odd, then R2C6 must be odd) - Arrows: Digits along arrows can repeat, sum to the circled digit.
- Renban: Purple lines contain a set of consecutive non-repeating digits.
Solving Links:
F-Puzzles | CTC App | Sudoku Lab
Solution code: Row 1, Row 9 (18 digits, no spaces)
Comments
on 22. July 2023, 14:31 by ademjaz
I love this! Amazing setting!
on 4. February 2023, 14:23 by Phistomefel
I think this puzzle is awesome. In my first attempt I bifurcated in hopes of finding a pattern, but I noticed what I missed only after my initial bifurcatory solve. Really beautiful ideas and interactions all around. Thanks a lot for constructing this gem of a puzzle, zegres! :)
Reply: Thanks a lot for the nice feedback, this is a puzzle where I stumbled on a very cool break-in, so spent a ton of time making the rest of the puzzle live up to it. Glad so many people like it!
on 7. May 2022, 20:55 by Chilly
Wow. That was pretty cool. If anything, the solve path was cooler than the break-in, which was pretty great to begin with.
Reply: Thanks! glad you liked it.
on 5. May 2022, 02:25 by SimplePurpleFrog
Very consistent level of beautiful logic throughout.
A very enjoyable puzzle. Hard, but almost approachable.
Reply: Really appreciate the feedback. I always try to ride that edge of challenging but fair.
on 4. May 2022, 22:31 by roxanarama
very cool idea and brilliantly executed :3
Reply: Thanks!
on 4. May 2022, 17:12 by Nightingale's Code
Fantastic puzzle. Took me longer than I care to admit, but once I worked out the stunning break-in it flowed very nicely. Thanks for the beautiful puzzle!
Reply: Thanks, I'm very happy with the feedback.
on 3. May 2022, 22:24 by DVFrank
Very nice! :^)
on 3. May 2022, 21:06 by abed hawila
Sublime puzzle!
Reply: Wow, thanks a lot!
on 3. May 2022, 15:00 by mobiustrip
That was amazing! The break-in sublime.
Reply: Thanks a lot! I started playing around with the "Parity Mirror" idea and this break-in just sort of emerged. I love it when that happens.
I think there is a lot of potential in this global constraint. Like all global constraints though, it is pretty hard to set.
on 2. May 2022, 23:35 by Agent
Great idea, wonderful execution. This was very hard for me, it took a while to spot some important deductions. Thanks for setting!
Reply: This is a tricky sudoku, glad you found all the tricks.
on 2. May 2022, 17:41 by zegres
Added German Translation, Thanks Glum Hippo!
on 2. May 2022, 13:36 by kolot
This puzzle is a beautiful implementation of a great idea. It is cleverly and carefully designed with lovely deductions. Since the grid looks almost completely symmetric with respect to the positive diagonal, at the beginning I kept thinking of the positive diagonal as the mirror. After I got used to the negative diagonal as the mirror, beautiful deductions came one after another in a very satisfying way. Great puzzle!
Reply: Thanks Kolot, glad you enjoyed it!
on 2. May 2022, 13:28 by glum_hippo
This puzzle looks somewhat ‘busy’- but don’t be fooled, the construction is very beautifully thought-out and the deductions highly rewarding!
Seid von dem ersten Anblick nicht abgeschreckt: das Rätsel ist elegant konstruiert und durchdacht, und die logischen Schlüsse oft überraschend
Reply: Thanks for solving and for translating!
on 2. May 2022, 12:11 by Jesper
Great puzzle, thanks!
