Standard Sudoku rules are in effect, i.e., every row, column, and 3x3 box must contain the digits 1-9 exactly once each.
Digits in circles are the arithmetic mean of the digits along each of the corresponding arrows. Digits may repeat along an arrow as long as they don't violate Sudoku rules.
Digits along each of the two thermometers must strictly increase, starting at the bulb.
Solution code: Row 6, then column 8 (18 digits total)
on 9. April 2021, 12:35 by mandourin
Very fun puzzle.
on 9. April 2021, 05:46 by Polycarp
Excellent puzzle. Very enjoyable solve. Have to keep your brain moving all the way to the end. Very, very satisfying in the end.