Stickiest Notes
(Eingestellt am 24. Januar 2026, 22:00 Uhr von jwsinclair)
Stickiest Notes, by James Sinclair
Divide the grid into nine orthogonally-connected nine-cell regions, and place the digits 1-9 once in each row, column, and region.
Each region has a corresponding color. A note outside the grid indicates that the region of that color contains a run of one or more orthogonally-connected cells (bounded on either side by a region border or the edge of the grid) in that row or column, and the number in the note (if given) is the sum of the digits in these cells.
If a region contains multiple sets of orthogonally-connected cells in the same row or column, a note only applies to one of them.
When notes overlap, the note on top has a lower sum than the note immediately below (this applies even if a sum is hidden or not given).
SudokuPad | version with region labels
See also:
- Sticky Notes, which was originally published in Artisanal Sudoku, Volume 211
- Stickier Notes
Lösungscode: row seven, with a dash ("-") to indicate each region border
Kommentare
am 22. Mai 2026, 00:50 Uhr von softie
I am happy to report that the puzzle also solves uniquely if you swap the order of the sticky notes in row 6. I am very unhappy to report that this makes the puzzle much, much harder to finish! It also has the disadvantage of not giving the right solution code.
am 7. Februar 2026, 20:54 Uhr von Motty
A refreshing combination of formalism and look-and-tell.
am 29. Januar 2026, 21:45 Uhr von virus_dave
Beautiful puzzle, with a challenging break in. Very pleased once I finally got it.
Thank you!
am 28. Januar 2026, 10:32 Uhr von juggler
Lovely puzzle! Quite challenging but very smooth once you spot what to do.
am 27. Januar 2026, 22:34 Uhr von dzamie
The hardest part was definitely the break-in, or rather setting up my notes. I got most of blue's area figured out pretty quickly, but immediately hit a wall and had to just kinda stare at stuff for a while.
Once I started narrowing down possibilities, it was easier to see where I could go next.
Still took me nearly 2 hours, though.
am 27. Januar 2026, 01:35 Uhr von QuiltyAsCharged
Incredible puzzle! I loved the logic of the break-in. The hardest part for me was towards the end
am 26. Januar 2026, 22:28 Uhr von Norkas
The break in was a bit tricky for me, but overall the puzzle felt easier on average to me than the 7×7 one, having solved the three in sequence. I liked the flow of this one a lot, probably my favorite of the three.
am 26. Januar 2026, 19:20 Uhr von dumediat
Excellent follow-up to the 7x7. I really liked the implementation of the color-specific regions, I hope there are more to come!
am 26. Januar 2026, 17:10 Uhr von Chilly
Very nice puzzle, James. Fun geometrical logic.
am 25. Januar 2026, 21:47 Uhr von sorryimLate
I agree with KNT, it was easier to get started with this one. I didn't feel as confident with the logic of the 7x7. Thanks for the beautiful puzzles!
am 25. Januar 2026, 21:25 Uhr von KNT
Really nice! I actually found the 7x7 more difficult.
am 25. Januar 2026, 19:41 Uhr von SimiC
I just binge-solved all 3 puzzles of this series in a couple hours and it was amazing. Each puzzle was harder and better than the previous one, with the first already being a lot of fun. Amazing experience, thank you for creating these
am 25. Januar 2026, 17:45 Uhr von Snookerfan
Gorgeous again! Not hard, but very rewarding. Thanks
am 25. Januar 2026, 14:48 Uhr von v8nagrom
Surprisingly approachable once you've got familiar with the rules.
Really astonishing construction, thanks!
am 25. Januar 2026, 05:10 Uhr von Eespi
Wow! One of the most simultaneously fun and approachable (having done the two puzzles leading up to this) chaos constructions I've seen.
