Logic Masters Deutschland e.V.

Variant Sudoku 101: Renban Lines

(Eingestellt am 11. Dezember 2025, 22:24 Uhr von PhoenixAki)

My Variant Sudoku 101 series introduces common variant sudoku rules, frequently using dynamic fog to help point the solver where to look next. The target audience is those who are comfortable with classic sudoku, but new to variant sudoku. In other words, you are expected to be able to identify things like (but not limited to) pairs and triples in rows/columns/boxes and know how to take advantage of them. I welcome everyone to try this series regardless, just be warned you may have a harder time if you're new to sudoku in general.

There used to be a hint here because I worried the puzzle was tougher than the previous entries in the series, but after enough feedback saying the hint wasn't necessary, I took it away when updating this post to match the format of my others. If you do need help, the solution video is available on my YouTube channel :)
Rules:
  • Normal sudoku rules apply. Place the digits 1-9 in each row, column, and 3x3 box without repetition.
  • Dynamic Fog: The grid is partially covered in grey fog. Placing correct digits will clear the fog, at minimum under that cell and sometimes in other parts of the grid. No guessing is required.
  • Renban: Digits placed on purple lines must be a non-repeating set of consecutive digits in any order. For example, a 3-cell line could contain the digits 456, arranged as 456, 564, 465, etc.
Solve on SudokuPad here!

To increase accessibility to my puzzles, I post solution videos on on my YouTube channel. If you'd like to solve this in your own video, go ahead! But ideally, let me know here or via Discord (same username) if you do ^.^

Lösungscode: Box 2's digits in normal reading order (left to right, top to bottom). 9 digits.

Zuletzt geändert Gestern, 06:03 Uhr

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Kommentare

am 5. Januar 2026, 22:45 Uhr von PhoenixAki
Updated post as part of an effort to improve consistency of rule phrasing and post layout across all my puzzles.

am 17. Dezember 2025, 03:15 Uhr von byale
nice puzzle! 21:43

am 16. Dezember 2025, 22:23 Uhr von philolologue
18:40 for me :) loads of fun, thank you!

am 14. Dezember 2025, 06:39 Uhr von ZiiNerD
20:48 for me! I think renbans tend to not have obvious deductions for my brain, but I was able to get the break-in paying attention to the possibilities. Well set and a nice intermediate level puzzle that is approachable for newcomers like me! Thanks for the puzzle, PhoenixAki!

am 13. Dezember 2025, 00:02 Uhr von PhoenixAki
I've realized now there's a much easier way of phrasing/seeing the break-in compared to what I was envisioning when I set it, and that's probably why the hint hasn't been necessary for people so far seemingly. Ah well. Crazy how you can take the same deduction and phrase it in different levels of difficulty depending on how you look at it.

am 12. Dezember 2025, 15:32 Uhr von Myfyr MJ
Very nice and easy, thank you. Took me 12 minutes.

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ID:000QII

Variantenkombination Anfänger

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