Chaos Deconstruction
(Published on 1. April 2026, 00:00 by Manta-Ray)
Chaos Deconstruction: Place nine regions into the grid, each comprised of 9 orthogonally connected cells, such that no two regions touch each other (even diagonally).
Place the digits 1-9 in each region. Digits may not repeat within a row, column, or region. Cells outside of regions have a value of 0. For clarity, the value of all other cells is their digit.
Odd/Even: Cells with a grey circle contain an odd value. Cells with a grey square contain an even value.
Kropki: Cells separated by a white dot contain consecutive values. Cells separated by a black dot contain values where one is double the other.
Diagonal: Along each main diagonal, no value (other than 0) may appear more than once.
Solve on SudokuPad
Download the solution path here
Solution code: Row 5 (read left to right) with a 0 representing cells outside of regions (e.g. 12003400056)
Comments
on 1. April 2026, 20:31 by wildbush7
How does a zero work with respect to the black kropki dots? Can any number be considered the "double" of zero?
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The double of zero is still zero :)
on 1. April 2026, 19:56 by DubiousMobius
Lovely puzzle! The geometry on this is super tight!
on 1. April 2026, 17:29 by Manta-Ray
Updated rules
on 1. April 2026, 17:22 by Elliptical
There's a typo in the kropki instructions. It says white dots where it should say black dots.
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Thanks for pointing that out! It’s fixed now
on 1. April 2026, 13:57 by Manta-Ray
Updated solution code
on 1. April 2026, 13:40 by Snookerfan
Great puzzle! So many aprils fools jokes in there. The solution code did not work, I even checked the solution path to see if I made a mistake, but I didn't. Thanks
Edit: it was not row 4 apparently.
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Thanks for letting me know about the solution code! I’ve updated it now
