The 12 Regions of Christmas
(Published on 15. December 2023, 10:37 by IcyFruit)
Normal sudoku rules apply. Draw 12 orthogonally connected regions of different sizes which do not overlap. The regions do not need to cover the entire grid.
Within a region, a digit may only repeat if it appears on a gold ring, in which case it can only appear on gold rings. A digit on a gold ring indicates the number of gold rings within its region.
A digit on a pear tree is equal to the number of cells in its region.
The 3 digits on red baubles sum to 25.
Example
A valid region with 8 cells, 1 tree and 2 gold rings could look like so:
Solution code: Rows 1 and 8
Comments
on 28. March 2024, 00:29 by cyddrdrd
Interesting puzzle. Sadly, i wasted more than an hour at the beginning because i did not see the rule that the digit on the gold ring indicates the number of gold rings in the region. Apart from that, everything is very coherent.
on 7. January 2024, 07:53 by twobear
Amazing puzzle!
on 22. December 2023, 00:38 by Fool on Hill
Just a beautiful puzzle with varied and coherent logic. The clues played out cleanly and elegantly.
on 18. December 2023, 00:14 by konklone
This is a super impressive puzzle. It took a little while for the implications of the rules to set in, after which things started quickly taking shape - which is the sort of puzzle I love. :)
on 17. December 2023, 22:12 by NRB
This was a joy to solve.. took a bit of thinking to understand the implications of the rule and then how to apply that logic…. After that, it was hard but very beautiful… 70minutes well spent, thank you so much and Merry Christmas.
on 16. December 2023, 01:18 by Myxo
So beautiful and satisfying!
