Normal Sudoku rules apply. Each coloured region is a killer cage i.e. the number given in the top left is the sum of the digits in the killer cage. Digits do not repeat in a killer cage.
Additionally, each killer cage could act as a thermometer, that is there is a path within each cage that is strictly increasing. For example, a cage of three with 1-3-9 is valid, but 1-9-3 is not. In the case of 2x2 boxes, this picture illustrates the rules.
This is part of a group of "Thermal Killer" sudokus. There are 3 different puzzles, and a bonus puzzle which requires the solutions of the 3 puzzles. This was inspired by Eggr's Hidden Clone series
This is the bonus puzzle. Use the letters from the previous puzzles. Also, only cages with more than 2 cells have totals given.
Solution code: The word given in the white cells (all lowercase)
on 26. May 2020, 10:49 by Schlagenheim
Tolle Serie! Danke!
on 24. May 2020, 11:20 by Madmahogany
@Strosahl Thank you for letting me know! I hadn't taken that into consideration before. Will keep that in mind.
on 24. May 2020, 07:29 by Strosahl
Nice series. Had a little trouble since I'm colorblind, but I managed it. Thanks.
on 21. May 2020, 21:50 by zhergan
Nice series. Thanks for sharing..
on 19. May 2020, 22:27 by Realshaggy
Nice variant with some potential I think.
on 18. May 2020, 17:37 by ManuH
Sehr schöne Serie! Danke!
on 18. May 2020, 15:33 by Madmahogany
@Rollo @anu_chakravarti Thank you!
on 18. May 2020, 15:21 by anu_chakravarti
This was really fun to do! Great puzzle series @madmahogany
on 18. May 2020, 14:14 by Rollo
Very nice series, and I could do this one without A and I.
on 18. May 2020, 13:50 by Madmahogany
@Errorandy Thank you!
on 18. May 2020, 13:43 by Errorandy
No problem, nice series!
on 18. May 2020, 13:40 by Madmahogany
@Rollo @cdwg2000 @Errorandy I had made a mistake in the first part, switched the A and I, the puzzle should work now. Apologies for the inconvenience.
on 18. May 2020, 13:33 by Madmahogany
Extremely sorry for this oversight. I have made changes to part 1, the A and I were switched.
on 18. May 2020, 13:21 by rimodech
you are right, there is a mistake...
@Madmahogany: please, check the positions of A and I in part 1
on 18. May 2020, 10:48 by Madmahogany
Remember that you need to solve the first three Thermal Killers to attempt this one
on 16. May 2020, 23:26 by Madmahogany
Updated links
on 16. May 2020, 23:24 by Madmahogany
Clarification in the solution code