200/500

Hello, dear sudoku enthusiast. The 81 Cells Youtube channel just hit two tiny milestones (200 subscribers as well as 500 views for the first video released), the perfect excuse to provide you with a themed puzzle. The difficulty of this one doesn't compare to the previous two, but it is not a freebie either - I hope you have a bit of practice on Thermo Sudoku. Enjoy!

You can solve it online using the F-Puzzles interface: https://f-puzzles.com/?id=y97gvp9n

Rules :

Each row, column and region must contain the digits from 1 to 9.
Thermometers are drawn in the grid. Digits on a thermometer must increase strictly from the bulb to the other end(s).

#192 Thermo Sudoku

Even more Killer Sudoku

Killer Sudoku's popularity seems to be at an all-time high thanks to Cracking the Cryptic studying dozens of such puzzles - though many of the ones featured on their channel make use of one or more additional constraints. This here puzzle is just another regular Killer Sudoku. Note that it has only 11 cages, which is not the minimum possible but still a rather low number; I have been making a few such puzzles lately. It is also pretty hard and a few years ago I would probably not have published it here, but since there is an evergrowing public for this kind of puzzles, I feel comfortable sharing it. It is definitely not a masterpiece, but there are a few interesting deductions to make along the way. Enjoy!

You can solve it online using the F-Puzzles interface: https://f-puzzles.com/?id=y5obdn93

Rules :

Each row, column and region must contain the digits from 1 to 9.
The value on the top-left corner of a dotted cage is equal to the sum of its digits. No digit can repeat within a cage.

#191 Killer Sudoku