Cells containing numbers exactly one greater than an immediate neighbour (diagonal or orthogonal) within their box are shaded (and otherwise unshaded).
Cells with circles contain odd numbers.
Solution code: Row 1
on 2. October 2024, 23:30 by Shuhua Milk
Nice!
on 22. June 2024, 19:44 by GorgeousNicko
Always a thrill when I solve one of these, so I'm thrilled :D
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