Sidereal nebulae
(Published on 18. July 2025, 05:30 by NicoD)
Rules
Normal sudoku rules apply.
The grid is filled with galaxies. A galaxy is an orthogonally connected group of cells with a central symmetry.
All galaxy centers are marked with a circle. Every cell in the grid belongs to exactly one galaxy.
Digits in a galaxy cannot repeat and sum to the total marked near the circle, if given.
A white circle indicates a Standard galaxy (no constraint).
A green circle indicates a German Whisper galaxy: two orthogonally adjacent digits in this galaxy must differ by at least 5.
A red circle indicates a Parity galaxy: two orthogonally adjacent digits in this galaxy must have different parity.
Solution code: Column 5
Comments
on 18. July 2025, 21:50 by Exigus
Very nice, I did find starting the sudoku a bit tricky but it was fair. Thanks!
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ND: You are welcome!
on 18. July 2025, 14:05 by Snookerfan
Beautiful puzzle! After finding the galaxies the sudoku to start the rest of the puzzle was really awesome. Fun solve. Thank you.
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ND: You are welcome, I am glad you enjoyed this one.
on 18. July 2025, 11:52 by Chelo
That was really a masterpiece of setting!.. thank you setting and sharing it.
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ND: Thanks, I appreciate it!
