Solution code: Row 9 and column 9, no spaces. Example: 123456789987654321
on 3. August 2023, 20:29 by Cezarr
Nice puzzle. Negative constraint doesn't matter for the solve.
on 10. August 2022, 12:49 by Schesam
After solving and reading the comments i realized the negative constraint. With coloring it isnt needed to solve, but fun!
on 22. November 2021, 19:42 by JR_pianoman
I don't think I used the negative constraint at all, but that might be because I color high/low, which gave me the parity of a good number of cells. Fun solve.
on 15. November 2021, 09:55 by gbrljt
Nice and simple deductions. I enjoy!
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