Forcing
(Eingestellt am 7. Februar 2026, 08:00 Uhr von Kaktuslav)
Rules: Chaos construction: Divide the grid into nine non-overlapping regions, each consisting of nine orthogonally connected cells. Place the digits 1–9 once each in every row, column, and region. Circles: In each region, place a circle in the leftmost cell of its topmost row. Every circled digit counts how many cells of its own region (including itself) are visible in its column (region borders block the view). The nine circled cells together form an extra region, i.e. they are orthogonally connected and contain the digits 1–9 once each.
Lösungscode: Column 5, from top to bottom, with "/" for region borders (e.g. 123/4/5678/9)
Kommentare
am 15. Februar 2026, 02:48 Uhr von MatthewDonovan
Very beautiful puzzle, thank you! I am also amazed at how you realized this puzzle was possible.
am 12. Februar 2026, 18:06 Uhr von Macarena
That is impressive. Completely amazing. Simple and brilliant.
am 11. Februar 2026, 23:05 Uhr von eamondawes
This was a joy to solve, thank you!
am 11. Februar 2026, 08:10 Uhr von BG03
When I read the rules and looked at the blank grid, I was not expecting to solve it in 12 mins...
I have solved a lot of your puzzles now. Becoming a fan. Thank you
am 11. Februar 2026, 03:35 Uhr von cwill
delightful minimal construction, this one. break-in is pleasantly chewy and after that it feels like watching a cellular automata go. thanks!
am 10. Februar 2026, 22:14 Uhr von Kleiner_Lateiner
My favourite Puzzle of the last few months
am 7. Februar 2026, 19:19 Uhr von kasperd
The solution is slightly more nuanced than I expected from the initial contents of the grid.
I am amazed at how you discovered that those rules would produce a unique solution.
am 7. Februar 2026, 18:13 Uhr von Franjo
Thank you very much for creating and sharing this funny CC-puzzle.
am 7. Februar 2026, 13:09 Uhr von Titus Adduxas
I love a Kaktuslav puzzle - once you get your head round the logic it’s very straightforward - very nice.
am 7. Februar 2026, 12:51 Uhr von GeorgeTheToad2
Always a pleasure to do a Kaktuslav puzzle.
am 7. Februar 2026, 10:19 Uhr von Elliott810
Brilliant construction! Thank you:)
am 7. Februar 2026, 08:44 Uhr von Titan29
This is a strangely intuitive puzzle haha
