Oh Nine, Why Are You Clustering?
(Published on 17. June 2023, 15:10 by gdc)
Nines like to gather into heards in order to avoid unpleasant encounters with the dreaded seven. Can you help seven and find the weak spots?
Links: CTC, CTC (uncoloured), Sudokulab
Rules
- Normal Sudoku rules apply. Place the digits 1 through 9 in each empty cell. Digits must not repeat within the same row, column, or box.
- The digits in a cage must sum to the number printed in its corner. Digits may not repeat within a cage.
- Cells on either side of the inequality symbol must have values that abide by the indicated relationship.
Solution code: Row 4 without spaces
Comments
on 2. January 2024, 09:03 by gdc
restyle uncolored version with sudokumaker
on 19. August 2023, 21:57 by puzzlepandit
Good one mate!
on 21. June 2023, 19:09 by sacklunch
Another great puzzle from @gdc! Loved this one too. Thanks for setting and sharing!
on 21. June 2023, 13:49 by alyssa
Broke this several times for some reason, but it solved cleanly in the end, very nice!
on 20. June 2023, 16:55 by MarthaB
Struggled with the break-in, but persistence paid off. Pleased to have solved it. Thank you.
on 19. June 2023, 08:47 by Blashyrkh
What an excellent construction! The puzzle keeps you on your toes all the way through, never a dull moment. To accomplish this at the 2* level is a real feat!
on 18. June 2023, 18:14 by dingledork
It took me a while to find the break-in, but a really smooth and satisfying solve once I got it!
on 18. June 2023, 12:41 by EmX68
This was a fun puzzle. Thanks!
on 17. June 2023, 23:17 by rictech
Enjoyed it! Probably a better solve path but I colored and lettered everything and a final deduction put everything in its place nicely. Thanks!
on 17. June 2023, 20:24 by nyxie
Wow, this is one of my favorites I’ve done in a while! Unexpected solve strategy from what I’d first guessed
on 17. June 2023, 15:39 by gdc
add link to uncoloured version
