Time to give all those chimneys a good clean out!
Normal Sudoku rules apply.
Thermometers increase from the bulb.
A black dot joins two cells with one twice the other.
A white dot joins two cells that differ by one.
Not all dots given.
Solve the puzzle online at F-Puzzles.
Solution code: Enter the digits from Row 2 followed by Column 6
on 6. June 2023, 12:00 by Fisherman
Very appreciated.
on 5. June 2023, 23:21 by Tingo
Thanks for the fun puzzle!