Sub-Zero Thermometers
(Published on 20. August 2020, 22:35 by clover)
- Within a thermometer, digits strictly increase starting at the bulb.
For example, a thermometer could contain -6 -4 3 7, in that order.
A thermometer could NOT contain 3 -4 -6 7 (in that order).
- A thermometer cannot contain both a digit and its opposite (for example, a thermometer cannot contain both 3 and -3.)
- The sum of the digits along each thermometer is 0.
F-puzzles link
Solution code: Row 1 (digits only, ignoring any positive or negative signs.)
Comments
on 22. December 2021, 21:15 by Vebby
Very interesting! Bit of a head-twister, took me a little while to ask the right questions. Happy to see the excellent rating! :)
on 20. October 2020, 22:32 by Rollo
@SudokuExplorer That is why I wrote this comment. Perhaps you try it too?
My count is: 209 new authors and 1626 puzzles this year, definitely too much.
on 20. October 2020, 20:30 by SudokuExplorer
@Rollo That is bound to happen when on average 7 new puzzles are published per day (and 10 new ones yesterday!) when there are already more than 5000 puzzles that I haven't even looked at.
The name and number of solves of the puzzle with id=0004AJ, sums up the current situation.
The portal works best when the ratio of solvers to setters is high (or when setters solve more puzzles) so that puzzles get more feedback.
on 20. October 2020, 19:30 by Rollo
I'm not really a fan of thermometers, but this one should have more solvers. Try it!
on 21. August 2020, 22:11 by Rollo
Wunderschön!
on 21. August 2020, 19:00 by SenatorGronk
Very nice! Took a while to figure out how to start but went pretty smoothly from there.
on 21. August 2020, 14:41 by Thorsby
Normally I don't find thermometers very interesting, but this was good!
on 21. August 2020, 06:10 by Narayana
Really wonderful construction and a nice application of negative digits that does not feel artificial.
on 21. August 2020, 00:29 by Greg
Wonderful puzzle!!!
Really well put together and the whole thing felt so original. Have really enjoyed some of your "negative" Sudokus but this is the best yet in my opinion.
[clover] I'm so glad you enjoyed it! Thanks for the feedback! :)
on 20. August 2020, 23:35 by karen_birgitta
This was a fun one!
on 20. August 2020, 23:24 by Greg
Are the same numbers always negative or positive? for example if i find a 6 is negative in one thermometer, does that mean 6 is negative in every thermometer it appears in?
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[clover] Nope! Which is why there are so many thermometers in this one - lots of degrees of freedom to deal with.
