Rules:
Normal chaos construction rules apply. Digits (1-9) may not repeat in rows column and regions which have to be found by the solver. Killer cages are fully contained in a region (they may not be in 2 different regions). Digits may not repeat in the cages and must sum to the number in the top left corner.
No bifurcation is needed to solve the puzzle.
Solve on f-puzzles
Solve on CTC
Solution code: Column 9 followed by row 3
on 9. June 2024, 19:07 by Christounet
Awesome ! Again a harder step in the midgame, but super cool CC tricks. Thanks :)
on 9. January 2024, 04:35 by Tacosian
Fantastic!
on 28. April 2023, 00:28 by Piatato
Very nice puzzle! Hard but very coherent path. :)
on 19. February 2023, 13:30 by ONeill
Very nice! Flows very nicely once you spot a couple of tricks :)
on 14. June 2022, 19:51 by PixelPlucker
Phenomenal puzzle! Consistently very, very interesting
on 22. April 2022, 11:08 by hepcecob
I don't understand why, but this took me DAYS to solve. I've been able to solve some of the hardest puzzles on the site, but this one almost made me break. After figuring out the solution it seems "obvious" now... but there have been several times I literally just stared at the monitor for over an hour not knowing what to do.
Great puzzle though!
on 21. April 2022, 08:51 by MagnusJosefsson
Great puzzle! Fun and interesting logic to determine the regions, then smooth and easy irregular/killer sudoku.
on 20. April 2022, 17:28 by marcmees
very nice. thanks.
on 20. April 2022, 00:37 by drbs
Very tough puzzle, the solution took me many hours. Can‘t wait to see how Simon Anthony solves it in 45 minutes. ;-)