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.
Yellow atoms: Around an atom, all surrounding digits are either all even or all odd.
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: Row 8
on 8. September 2026, 13:35 by thegreatgazoo
That was fun thanks! The break in seemed a little harder than 1* for me (but maybe I missed something)
on 6. September 2026, 16:34 by Zinker
Picture added in English version
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