Wack
(Published on 22. May 2022, 16:34 by the_cogito)
Setting this puzzle was incredibly challenging, but I'm happy with how it came out :)
Rules:
- Contained within the grid are nine non-overlapping 3x3 square regions, which must be located. Each region contains the digits 1 to 9 once each, such that no digit repeats in any row or column. Cells outside regions do not contain digits.
- Blue lines are region sum lines. For every region a region sum line passes through, the digits along that line within that respective region must have the same sum. If a region sum line passes through the same region multiple times separately, each pass-through is treated separately.
- Cells outside any regions do not contain digits and therefore don't contribute towards any region sums, even if they are on a line.
- Circled cells indicate the number of cells from their respective region that that particular region sum line passes through. For example, if r9c9 were 5, then its region would need to extend to either r7c11 or r11c7 in order to contain 5 cells on that line. All circled cells must contain a digit.
Solve on CTC app
Leave a comment if you enjoyed!
Solution code: Row 6, then column 6, no spaces.
Comments
on 21. June 2022, 19:36 by the_cogito
For some reason the old puzzle link stopped working. Fixed this.
on 19. June 2022, 00:33 by Christounet
Hacked-a-wack !
Very nice and quite an easy solve for a puzzle that may look difficult at first glance. And definitely a lot easier than Frak !
on 18. June 2022, 07:27 by Elliptical
I found it only slightly easier than Frack itself.
Great puzzle and a nice way to pay homage to zetamath's puzzle. Thanks for sharing it with us.
on 3. June 2022, 19:31 by KNT
surprisingly approachable! great puzzle.
on 31. May 2022, 16:22 by grkles
Once past the funky and intriguing break-in, this was incredibly smooth.
on 24. May 2022, 01:41 by Avg Sudoku Enjoyer
Beautiful puzzle once again! Quite a lot of interesting logic, and I found it to be more approachable than it initially seemed!
on 23. May 2022, 14:01 by apiyo
Thanks Cogito! That was a lot of fun and came to a very smooth final run of digits.
on 22. May 2022, 17:09 by Andrewsarchus
Great puzzle with clever use of geometry interacting with the ruleset.
on 22. May 2022, 16:57 by purpl
You are truly a mad man! And lucky so so lucky with that one deduction, you know what I am talking about!
on 22. May 2022, 16:38 by tallcat
Very creative and not as brutally hard as i had first thought. There were some brilliant interactions in this one.
on 22. May 2022, 16:38 by zetamath
An awesome puzzle, and I really appreciate the reference in the title!
on 22. May 2022, 16:38 by Niverio
Very nice tribute puzzle with solid logic! The places to look for the next steps are indeed Wack ;)
