Birefringence
(Published on 25. August 2023, 20:46 by Jay Dyer)
Rules
- Normal sudoku rules apply.
- Yin yang: colour each cell in the grid with one of two colours, such that each colour forms a single orthogonally connected set, and no 2x2 area is entirely one colour.
- In a cage, digits may not repeat, and both colours of cells sum to the same value N. Each cage has a different value for N.
Solve in Sudokupad or f-puzzles.
On a side note, I have a Patreon page as well, if you are interested in supporting my puzzle-making there. I also post patron-exclusive puzzles of various genres there each month.
Solution code: Row 5
Comments
on 30. August 2023, 15:23 by GeorgeTheToad2
Another brutal puzzle but very satisfying to get through it. Took over 5 hours so I made it a 5 difficulty. Thank you for sharing this amazing puzzle.
on 29. August 2023, 15:47 by samuel1997
Love this puzzle so much!
on 28. August 2023, 05:47 by ddx01
Gorgeous! I solved it back in the day, when it was still up for testing, and I'm happy I saved my solution so I can submit it. I really enjoyed this one!
on 28. August 2023, 01:16 by wenchang
Very nice YinYang! Spoiler alert! https://youtu.be/0FmHgEg4atc
on 27. August 2023, 13:32 by twobear
Brilliant as always. Thank you!
on 26. August 2023, 19:45 by yttrio
Absolutely brilliant idea and execution! There were many fantastic moments during the solve, and the rule sets interacted in very clever ways!
on 26. August 2023, 12:45 by DaniK
Amazing puzzle! The flow was just perfect: full of hard steps, but at the same time it was never too hard to make a further deduction. Thanks for setting!
