Normal sudoku rules apply.
Digits on a thermometer must increase from the bulb end.
Thermometers outside of the grid apply to skyscraper clues.
Numbers in the grid represent the heights of skyscrapers. Numbers outside the grid indicate the amount of visible skyscrapers in that row / column as seen from that vantage point.
Solution code: Column 9 top to bottom
on 24. March 2023, 21:37 by dennischen
External thermo skyscrapers are really such an interesting variant :) Thanks for the puzzle!
on 25. December 2022, 11:08 by h5663454
I recreated a grid that can fill in numbers on the outside of the sudoku grid.
CtC link: https://tinyurl.com/3aayhx65
on 3. January 2022, 20:25 by twobear
Beautifully set. Thank you!
on 15. October 2021, 14:42 by Statistica
Nice and not difficult.
on 13. October 2021, 10:06 by kolot
Very clever puzzle! I enjoyed the whole process.