Ordinal Thermos
(Published on 21. April 2026, 18:00 by protheph)
Rules:
- Normal Sudoku Rules Apply: Fill every row, column, and 3x3 box with the digits 1-9 without repetition.
- Bulbless Thermometers: Digits along a gray line must be strictly increasing from one end to the other. The "bulb" (the lowest digit) may be at either end of the line and must be deduced by the solver.
- Ordinal Thermos: Digits on each bulbless thermometer must sum to a distinct value, and the thermometer with the k-th largest sum must contain the digit k. (For example, the thermometer with the greatest sum must contain the digit 1.)
- XV: Cells separated by a V sum to 5. Not all V positions are necessarily given.
- Kropki Dots: Cells separated by a white dot contain consecutive digits. Cells separated by a black dot have a 2:1 ratio. Not all dots are necessarily given.
Have fun!
Solution code: Column 2
Last changed on -
Solved by Aaravos, SKORP17, Brodie2000, Maximus, jhrdina, Briks, Altynbek
Comments
on 23. April 2026, 09:40 by Briks
I didn't expect to solve it, then I saw one single digit to start with - but step for step and digit for digit I could go on and solve it. Great puzzle, thank you!
on 21. April 2026, 18:34 by protheph
As stated in the rules, all thermos must have different sums
on 21. April 2026, 18:28 by pecha_berrie
Can there be ties in rank? Two or more thermos with the same sum? Or do all the thermos need to have different sums?
