Negativity
(Published on 31. January 2022, 22:13 by jwsinclair)
Normal sudoku rules apply.
On thermometers, digits increase from the bulb.
Digits in cells with a gray square must be even.
Digits in cells separated by a V must sum to 5, and digits in cells separated by an X must sum to 10. All possible V's and X's are given (i.e. there are no V's).
Cells separated by a knight's move (in chess) must contain different digits.
f-puzzles
CtC
Solution code: row 5, column 5 (18 characters, no spaces)
Comments
on 31. July 2025, 19:44 by StephenR
Enjoyed that, thanks. Was inordinately slow to start, not much better after I had started before finally getting some momentum going and splashing the colour.
on 4. March 2022, 18:30 by flo_310
Thanks for the very nice puzzle. This is indeed one of my favourite sudokus I`ve ever solved. I loved the ruleset!
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Wow, that's very nice to hear. Thanks!
on 11. February 2022, 18:14 by kolot
Very beautiful puzzle! I enjoyed it from the beginning to the end.
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Thanks!
on 5. February 2022, 19:04 by Godrick
Very nice! Ended up with a fully colored "paired" grid, then could fill in all the numbers in less then a minute. Proud of myself I actually managed to keep the negative constrain "only" through colors. Very nice puzzle.
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Thanks!
on 1. February 2022, 05:52 by Kafkapharnaum
Beautiful construction, love the minimalism of the grid
That was a fair bit trickier than I thought it'd be -- somehow I thought I spotted a 'trick' and figured I could shortcut it and ended up crashing badly haha... So I redid it properly and I'm glad I did so I could really enjoy it in all its cleverness! :D
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Thanks! Glad you stuck with it
