The Jail

As I said a few weeks ago, Killer Sudoku is ridiculously popular these days, and the trend will probably keep going for a while since there is indeed much to do with the variant. Opportunely, Cracking the Cryptic recently released a new app dedicated to Killer Sudoku (https://store.steampowered.com/app/1471910/Killer_Sudoku/ - also available in other stores) and I have had the pleasure of contributing a large number of puzzles, some of which are available at launch while others will get added to the app in future updates. All the puzzles therein are handcrafted and several other talented authors have contributed, so I encourage you to check it out.

You may rightly feel a bit uneasy at the thought that there are so many killers on the loose... But fear not, they will not stay free much longer. Actually, some of them have already been caught and locked up in a high-security prison, an overview of which I provide thereafter. Now that I think of it, let's hope nobody uses this classified document to plan an escape...

You can solve this puzzle online using the F-Puzzles interface: https://f-puzzles.com/?id=y66n7wqw

Rules :

Each row, column and region must contain the digits from 1 to 9.
Digits in a dotted cage sum to the value in the top-left corner. No digit can repeat within a cage.
A digit in a shaded cell must be greater than all the digits in adjacent unshaded cells.

#193 The Jail [Killer/Fortress Sudoku]