Sudoku Variants Series (329) - Lucky Charms Sudoku
(Published on 14. July 2021, 00:00 by Richard)
Lucky Charms Sudoku
Inspiration for this type comes from cam.
Solve online in Penpa+ Basic image by Henry or More artistic image by Swaroop.
Apply classic sudoku rules.
Each symbol is a ‘Lucky Charm’. Equal Lucky Charms must be replaced by equal digits, different ones by different digits. A Lucky Charm has exactly as many neighbouring digits that are at most one higher or lower than the digit itself. When the Lucky Charm is a 6, exactly six neighbouring cells contain a 5, 6 or 7. A Lucky Charm of 1 has exactly one 1 or 2 as neigbhour. All possible Lucky Charms are given.
Solution code: Column 1, followed by column 3.
Comments
on 4. September 2022, 07:55 by Richard
Added tag for online solving.
on 15. July 2021, 23:35 by cam
@Henry
Yes, this is a breakfast cereal that is available in the US, UK, and Canada. It's made from oats, but it has little colorful marshmallow pieces with the designs you see above (plus a few others).
on 15. July 2021, 05:24 by Richard
@cam: thanks for your kind words! :-)
on 15. July 2021, 05:14 by henrypijames
@cam: Who are "they" and what set of charms are being replaced? Richard mentioned breakfast, is this some cereal?
on 14. July 2021, 23:46 by cam
@Henry
Yes, this is a pot of gold. That's what they had when I was a kid, but now I think they replaced the pot of gold with a unicorn charm.
on 14. July 2021, 23:37 by cam
Oh wow! This was one of my favorite puzzle constraints :)
I can't wait to try it!
EDIT: Fantastic! I absolutely adore this puzzle. This is significantly more entertaining than it's predecessor. Thanks :)
on 14. July 2021, 17:32 by Richard
@Henry: I don't know. I am not familiar with this type of breakfast. :-)
on 14. July 2021, 17:31 by Richard
Added links for online solving. Thanks to Henry and Swaroop.
on 14. July 2021, 17:27 by henrypijames
Seriously, what is that yellow thingy in R3C7 supposed to be - a sack of gold?
on 14. July 2021, 13:49 by marcmees
nice. negative constraint cleverly used.
on 14. July 2021, 05:48 by swaroop2012
If you prefer some kind of art - https://git.io/JCCiL :)
on 14. July 2021, 05:25 by Richard
@henry: haha, I understand. Thanks! While constructing in Excel, I worked with coloured cells. While testing it were A's, B's etcetera. Only in this last version, I worked with the symbols, which I copied from cam's puzzle.
on 14. July 2021, 04:32 by henrypijames
Penpa+: https://git.io/JCnoS
Sorry for missing out on the lovely art, but this is as far as Penpa+ can do.
on 14. July 2021, 03:07 by cdwg2000
Very nice!
