Rules:
Irregular sudoku rules apply: Place the digits 1 through 9 in each empty cell. Digits must not repeat within the same row, column, or indicated region..
Normal Killer rules apply: Digits cannot repeat in cages, and sum to the number in the upper-left corner of the cage.
XV rules apply: Adjacent cells connected with an X must sum to 10. Adjacent cells connected with a V must sum to 5. Adjacent cells not connected with an X or V must not sum to 5 or 10
You can try this on F-puzzles or
CTC
Solution code: Row 8, Column 6
on 4. November 2022, 08:07 by Johannes Quack
Great puzzle! (And much harder than exspected)
on 3. November 2022, 18:59 by virtual
Lovely killer and irregular logic!