Quadruple with Butterfly Wings
(Published on 13. August 2021, 17:58 by Innocuous)
Rules:
- Normal Sudoku rules apply.
- Along thermometers, digits must increase from the bulb end.
- Digits along gray palindrome lines read the same in either direction.
Solution code: row 2 followed by row 8
Solved by SKORP17, baracartas, cfop, Lakritze, butch02, PulverizingPancake, Count Knersis, Kigor, hieutc, StefanSch, djorr, LadyRuatha, AvonD, karen_birgitta, Dentones, jalebc, Sewerin, apwelho, finger
