Sulfur Sudoku
Normal Sudoku rules apply
The lines are Palindrome lines and must have the same sequence of digits as read from either end.
The circles indicate digits that must appear in the surrounding cells.
Here is a link to the puzzle on f-puzzles
Solution code: Row 2 + Column 9
on 1. February 2023, 11:03 by ForzaFcu
nice one
on 7. October 2020, 03:02 by Quarterthru
So before anyone asks about the name... I thought it kind of resembled an atom, with 18 electrons... I just wish I could've gotten the center to add up to the atomic weight.