Invisible Cages
(Published on 5. March 2023, 15:14 by Ennead)
Normal sudoku rules apply.
Cells separated by a white dot contain consecutive digits.
Digits cannot repeat in a cage and sum to the total in the top-left-most cell of the cage. Each cage visits at least two 3x3 boxes and has an equal number of cells in each box visited.
The cages are invisible.
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(If you like this constraint yttrio has constructed an excellent puzzle using the same ruleset. Posted here.
Solution code: Column 1 followed by row 6 (18 digits, no spaces)
Comments
on 17. September 2023, 23:07 by Krokant
The solve slowed down considerably somewhere in the middle, but it wasn't too dificult overall. What a lovely puzzle. :)
on 2. April 2023, 01:02 by dennischen
Wow, a lot of opportunities to get tripped up on this puzzle. Very hard, but incredible once you can see it :) Thanks!
- You are very welcome! Thanks for your persistence. I'm glad you found it enjoyable.
on 16. March 2023, 14:25 by Ennead
Added link to yttrio's puzzle.
on 7. March 2023, 05:59 by madhupt
A very delightful puzzle. It was very hard for me after the initial break-in.
- Thanks for your comment. Glad you enjoyed the puzzle. I think it is somewhere between 4/5 and 5/5 for difficulty, but didn't want to put too many people off from trying it!
on 6. March 2023, 09:04 by Ennead
Changed rules for clarity.
on 6. March 2023, 06:02 by alisonsky2
Had to assume that region meant box and top-left-most cell meant left-most cell in the top row of each cage, but flowed very well, lots of fun!
- Thanks for your comment. I'm glad you had fun with the puzzle. I'll edit the rules to make them clearer.
