Normal Sudoku Rules apply
Starbattle: The numbers 1 and 2 act like stars: they cannot touch each other (or themselves), even diagonally.
3D-Sandwich: Numbers (or sums) sandwiched between two stars (horizontally, vertically and diagonally!) have to be divisible by the sum of the sandwiching stars.
Arrow: Digits along an arrow sum to the number in the circle
Thermo: Along thermometers, digits must increase from the bulb end.
Edit: Updated the puzzle to a new version
Solution code: Enter the digits of row 4 (left to right) and col 9 (top to bottom)
on 14. October 2022, 19:20 by StefanSch
Amazing puzzle!
on 17. May 2021, 08:47 by Osh Tirola
set difficulty to 4
on 17. May 2021, 08:28 by henrypijames
Still 4 star difficulty for me.
EDIT: compared to the other 3D-Sandbattle, how did you like this version?
I like the other one more, because I like geometry (as a purer manifestation of logic than arithmetic) - and irregular sudokus offer more of that.
I also like cleanness, and the first puzzle has a smaller ruleset - on the other hand, this one has no given digits, so it's a wash on that front.
Ultimately, that puzzle was significantly more difficult (I would've given it 6 stars if I could) - and proportionally more rewarding. That's probably the most important criteria.
on 16. May 2021, 23:28 by Osh Tirola
added the second thermo to make it a bit easier :)