- Normal sudoku rules apply, i.e. each row, column and 3x3 region has to contain the digits from 1 to 9 once each.
- Harmonious Thermometers: Digits along a thermometer must strictly increase from the bulb end. Additionally, the sum of the digits along a thermometer must be divisible by its number of cells. For example, if a thermometer consists of three cells, the sum of its digits must be a multiple of 3.
Here you can solve the puzzle online:
Solution code: Column 5 from top to bottom (9 digits in total)
on 1. February 2025, 11:35 by Hamsterbase
Thank you for a lovely puzzle. I'm not sure whether I may have missed something at the beginning however as the break in (at least, my break in) felt much harder than 2 stars. After that however, all the logic flowed beautifully.
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You are much welcome, Hamsterbase, thank you for your comment! It is great to hear you liked the puzzle. Concerning the break-in: In my opinion, it is the hardest deduction of the puzzle. To avoid spoilers, I have described my intended break-in logic in a hidden comment.
Kind regards, sujoyku
on 1. February 2025, 06:09 by Paquet Voleur
Wow! Absolutely stunning minimalistic puzzle! Even after solving it, I can hardly believe this has a unique solution. Thank you Sujoyku for sharing this gem.
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You are much welcome, Paquet Voleur, thank you for your comment! I am glad you enjoyed the puzzle. The little extra in the thermo rules has quite some impact allowing for relatively few clues.
Kind regards, sujoyku
on 31. January 2025, 15:59 by Franjo
Interessante Idee in gewohnt schöner Präsentation. Heißen Dank für das tolle Puzzle!
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Sehr gern geschehen, Franjo, vielen Dank für deinen netten Kommentar! Es freut mich, dass Dir das Rätsel gut gefallen hat.
Herzliche Grüße, sujoyku
on 31. January 2025, 14:53 by wuc
Beautiful break in. Great 2* puzzle with refreshing math rules. Thx for sharing.
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You are much welcome, wuc, thank you for commenting! I am glad you enjoyed the break-in and liked the slightly mathy ruleset.
Kind regards, sujoyku
on 30. January 2025, 21:36 by MattYDdraig
Excellent as always.
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Thank you for your comment, MattYDdraig! I am glad that you liked it.
Kind regards, sujoyku
on 30. January 2025, 20:59 by anyeyeball
Another joyful, fun sudoku from sujoyku. Thank you for sharing your work!
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You are much welcome, anyeyeball, thank you for your kind words! I am glad you enjoyed the solve.
Kind regards, sujoyku