Normal irregular sudoku rules apply.
Digits in a cage must sum to the total in the top left corner of the cage. Digits must not repeat in a cage.
Digits separated by a black dot must have a 2:1 relationship. Not all black dots given.
Digits separated by a white dot must have a difference of 3. Not all white dots given.
F-Puzzles link: 12 Dots of Christmas
Solution code: column 2 digits followed by column 8 digits
on 24. July 2023, 17:37 by abadx
Nice puzzle.
on 6. December 2021, 00:43 by brandon_bot
Very unique puzzle.
on 5. December 2021, 21:36 by obi
One of the most enjoyable puzzles I've ever done, and I don't even usually like irregular sudoku! The flow of logic towards the end was just beautiful, didn't collapse too much like some puzzles do. Proving that equivalence was tricky but a real treat. Thank you!
on 4. December 2021, 01:33 by Polycarp
fixed the broken link
on 3. December 2021, 18:50 by Evbeurdn
Link is broken.