Cat's Cradle
(Published on 25. October 2022, 14:10 by zetamath)
The grid consists of 4 6x6 mean minis. The coloring in the grid is to indicate the boundaries between those four puzzles. Each of these 6x6s contains precisely 6 of the digits 1-9, and those digits obey sudoku rules, that is, they do not repeat within rows columns or boxes.
The lines in the grid are region sum lines. For each line, digits on the line have an equal sum N within each box it passes through. If a line leaves a box and reenters it, the count resets.
Additionally, within adjacent regions in different grids, digits may not repeat within a row or column. For example, r5c1 cannot contain the same digit as r8c1, but could contain the same digit as r9c1.
Have fun, leave a comment if you enjoy the puzzle!
PS: I stream solving sudoku like puzzles three days a week. You can check out the channel, as well as some videos I have made about setting puzzles, at my YouTube channel here.
Solution code: Row 3
Comments
on 3. April 2024, 15:49 by Boh
Does each grid have the same 6 digits or can they be different
on 30. November 2023, 21:55 by StephenR
Another cracker. I got snarled up at the start through a basic lack of numeracy, but once I'd righted my wrong it flowed delightfully.
on 19. December 2022, 14:31 by Christounet
Very original puzzle ! I spotted the place where I had to start looking quite immediately, but then I made a stupid error in the options, which made me do some unnecessary calculations until I realized how easier you had intended it... Great stuff as always !
on 29. November 2022, 19:18 by Syzygy
Fantastic puzzle - such a joy to solve! I cannot comprehend how you could even come up with something like this :)
on 3. November 2022, 01:50 by wooferzfg
Fantastic puzzle! The break in was pretty clever.
on 28. October 2022, 02:47 by Playmaker6174
A delicate opening indeed, and a very smooth and fun solve afterwards! Thanks for the great fun :)
on 27. October 2022, 20:30 by Niverio
Very smart opening into a brilliant flowing puzzle :)
on 25. October 2022, 19:29 by efnenu
A charming break-in and beautiful puzzle, thank you!
on 25. October 2022, 18:50 by zetamath
In case anyone is having problems with the colors not working for them, here is a version with no coloring on the grids, so you can color them (or not) however you choose:
https://zetamath.link/cats-cradle-alt
on 25. October 2022, 17:03 by Snookerfan
Great puzzle, so much fun! Smooth after the clever break-in. Thank you
on 25. October 2022, 16:08 by Mrtn
Lovely puzzle, the interaction between grids is awesome!
on 25. October 2022, 15:38 by Jesper
Very nice, zeta, thanks!
on 25. October 2022, 14:14 by Vebby
Beautiful break-in and flow! Great fun to solve :)
