Dustpan (Disjoint parity sweeper sudoku)
(Eingestellt am 23. Februar 2023, 13:00 Uhr von Qodec)
- Sudoku: Each row, column, and region indicated by thick borders in the grid must contain the digits 1 to 9 once each.
- Parity sweeper: Cells marked with a circle show the number of digits with their same parity in their 3x3 neighborhood (including the digit in the cell). (E.g. if r1c1 is a 4, then all 4 cells in the r12c12 block are even. If r1c1 is a 1, 1 of those four cells is odd, which is r1c1, and so all three cells surrounding it must be even.) Not all circles are necessarily given.
- Disjoint groups: Digits cannot appear in the same relative position within different box regions. (E.g. r1c1 and r4c4 cannot contain the same digit.)
You can play this puzzle online using:
- CTC app (Sudokupad): https://tinyurl.com/y8m6v2af
- f-puzzles: https://f-puzzles.com/?id=2zhe7wcu
Lösungscode: Row 8. I.e. the 9 digits in row 8 from left to right, for example: 123456789
Kommentare
am 18. April 2023, 01:27 Uhr von SHERAX
Amazing! WoW!
am 27. Februar 2023, 22:21 Uhr von alanb
Very satisfying solve, the disjoint constraint slowly inches you to the solution like so many breadcrumbs. Really lovely flavor combination with the parity sweeper.
am 27. Februar 2023, 03:17 Uhr von antiknight
A beautiful idea!
am 27. Februar 2023, 00:11 Uhr von Godrick
Wow! The opening logic is beautiful and amazing! I'm still amazed that it had a unique (and findable) path from there. Thanks!
am 25. Februar 2023, 10:14 Uhr von ademjaz
Excellent puzzle, lots of fun!
am 24. Februar 2023, 22:03 Uhr von Playmaker6174
Lots of fun and enjoyment! The disjoint scanning clearly slowed me for a long while, but really I should've looked for obvious spots much better in here :P
am 24. Februar 2023, 16:15 Uhr von cam
These two rulesets marry together so well. It was a wonderful solve. Not easy, but not needlessly frustrating either--as the disjoint groups puzzles can sometimes be.
am 24. Februar 2023, 11:11 Uhr von abed hawila
Wonderful puzzle!
am 24. Februar 2023, 08:47 Uhr von GarageDoorOpener
This puzzle took me almost 2 hours but I had lots of fun doing it
am 24. Februar 2023, 02:04 Uhr von Calvinball
I typically don't enjoy disjoint sets, but a puzzle this fun and clever is always going to be an exception to that.
Thanks for taking your time to set this!
am 23. Februar 2023, 23:37 Uhr von Zombie Hunter
Very nice use of Disjoint. Wonderful puzzle.
am 23. Februar 2023, 23:05 Uhr von Phistomefel
That was fun! Thank you, Qodec! :)
am 23. Februar 2023, 22:27 Uhr von Zombie Hunter
Very nice use of Disjoint. Wonderful puzzle.
am 23. Februar 2023, 21:09 Uhr von Snookerfan
Very nice puzzle! Thank you
am 23. Februar 2023, 19:31 Uhr von Andrewsarchus
Great use of the Disjoint constraint!
am 23. Februar 2023, 19:26 Uhr von Piatato
Fascinating puzzle! I enjoyed gradually unraveling everything and luckily the discount groups weren't too hard on me. :)
am 23. Februar 2023, 17:34 Uhr von bansalsaab
Beautiful puzzle. Thanks for this.
am 23. Februar 2023, 15:22 Uhr von Niverio
Brilliant puzzle! The minimalistic nature of the grid slowly unravels its magnificent secrets beautifully!
am 23. Februar 2023, 15:18 Uhr von Qodec
Clarified there's no negative constraint.
