Normal Jigsaw Sudoku rules apply. No digit may repeat in a row, column, or thick-bordered box.
The grey stripes are thermometers. Digits must strictly increase beginning at the bulb end.
Solution code: Columns 1 and 8 (18 digits total)
on 20. September 2021, 18:03 by glum_hippo
include online solving tool tag
on 13. September 2020, 21:06 by Eric Fox
Not as easy as it looks! Wonderful solve, though.
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