| Difficulty: |  |
| Rating: | 93 % |
| Solved: | 106 times |
| Observed: | 0 times |
| ID: | 000THO |
The normal Sudoku rules apply: in each row, each column, and each bold-outlined 3x3 box, the digits 1–9 must each appear exactly once.
Additionally:
Green spectral lines: Adjacent digits along any green spectral line differ by at least 5.
Blue spectral line: The digits on the blue spectral line sum to the atomic number of magnesium in the periodic table of elements (12).
Yellow atoms: Around an atom, all surrounding digits are either all even or all odd. All atoms are given.
Electrons: Cells connected by a white electron contain consecutive digits. Cells connected by a black electron have a 1:2 ratio. Not all white and black electrons are given.
F-Puzzles-Link: F-Puzzles link
Sudoku-Pad-Link: SudokuPad-Link
Solution code: The first row
on 13. July 2026, 21:43 by amchap
Thanks for sharing. I used the yellow atoms, but not the blue spectral line. So presumably there were multiple paths.
on 28. June 2026, 10:51 by Blackophelia
Lovely puzzle! Didn’t need the atoms negative constraint to solve.
on 27. June 2026, 21:24 by VitP
level 1 all the way.
"all atoms given" not needed
| Difficulty: | |
| Rating: | 93 % |
| Solved: | 106 times |
| Observed: | 0 times |
| ID: | 000THO |
