±1
(Published on 29. March 2024, 23:27 by mathpesto)
Rules:
Normal sudoku rules apply. Values along a purple line comprise a set of non-repeating, consecutive numbers (in any order). A black dot joins two values in a 1:2 ratio.
There is exactly one "knapp daneben" cell in each row, column, and box. A digit in a knapp daneben cell has its value either increased or decreased by exactly 1 (e.g. a 3 becomes either 2 or 4). Each digit appears in a knapp daneben cell exactly once. (However, it is permissible for two digits to become modified to the same value, such as both 5 and 7 becoming 6.)
Solve online:
Solution code: Digits in knapp daneben cells from top (Row 1) to bottom (Row 9) (9 digits)
Comments
on 6. October 2024, 21:12 by AsgarArn
Very fun, great construction,
Don’t be scared of the ”knapp daneben”
on 16. September 2024, 20:17 by StephenR
Very satisfying to solve, thanks, and pretty smooth to boot.
on 23. August 2024, 19:30 by damasosos92
Very clever!
on 28. May 2024, 23:23 by wuc
Great one. Clever ruleset. Thx.
on 20. April 2024, 11:57 by Fra314
Beautiful and clever, but quite tricky for a novice on the constraint. It was super fun, tho :D
on 5. April 2024, 02:16 by Nordy
Oh boy I fell into every trap and had to backtrack countless times, but I emerged from the other side stronger and very satisfied! Awesome stuff in here
on 31. March 2024, 15:27 by Franjo
Thank you so much for sharing this wonderful masterpiece and: Happy Easter!
on 31. March 2024, 14:07 by Christounet
Awesome ! One of the best approachable modifier puzzle I have solved in recent memory. Thanks :)
on 31. March 2024, 08:39 by Norkas
Wow, knapp daneben and renban feels like such a natural and potent combination, now that I see it. Great setting.
on 30. March 2024, 20:58 by econtrout
Lovely Puzzle - solid throughout
on 30. March 2024, 18:16 by yttrio
Very fun puzzle! Somehow the knapp daneben deductions always managed to give just enough to progress the solve.
on 30. March 2024, 17:27 by Agent
Nice and very smooth!
on 30. March 2024, 17:14 by Perladel
I need a refund for all the heart attacks I've experienced while solving this puzzle.
Jokes apart, this is really some clever stuff. Loved it
on 30. March 2024, 11:56 by Snookerfan
Great puzzle! I loved how every clue turned out how I hoped it would using this ruleset. Masterfully crafted, so thank you!
on 30. March 2024, 05:00 by SudokuHero
Surprisingly flow-y solve. Loved the logic.
