Logic Masters Deutschland e.V.

Counting Renbans

(Published on 14. April 2026, 21:10 by mimec)

This is the first puzzle in what may become a whole series where counting circles are combined with various types of lines.

Rules:

  • Normal sudoku rules apply.
  • Digits on a purple Renban line must be a set of consecutive, non-repeating digits (in any order).
  • A purple circle indicates exactly how many circles contain that digit. For example, if there is a 4 in any circle, then exactly 4 circles contain a 4.

Play online on SudokuPad

Solution code: Row 9

Last changed on -

Solved by gdc, nunc, SKORP17, wuc, GorgeousNicko, TheCutmaster, jwsinclair, jeffrey.l.byrd19, sedici, lianarox, by81996672, rameshsrivats, johnreid, lina_hyena, Bashy99, achim-t, Bjd, Centroid41, Krisonium, ... Archon, Johannes Quack, Plastosia, thintheboxking, Aerasharathestia, chet, soupseason, Interloper, abihummel, cravenp, jennyaa, Elvis, Morgenstern, Hima, BigodenoQuadrado, Nosferatu, kisukeA, jalebc
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Comments

Last changed on 28. May 2026, 02:54

on 28. May 2026, 02:53 by kisukeA
Love this series, also thanks a lot to VitP

on 15. April 2026, 20:56 by VitP
identifying the counting digits is fairly easy. then there is a critical step that seems much harder, where it helps to consider the renbans as a form of REGION

Last changed on 16. April 2026, 10:35

on 15. April 2026, 19:20 by fractalminding
Very nice! I would like to more sudoku with this or similar (other line type) ruleset. Minimalistic design ❤️
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mimec: Thank you! I already have two more sudoku with similar ruleset in my backlog. I usually publish every Tuesday.

on 15. April 2026, 16:47 by Scorps
Nice logic, thanks for sharing. 55 minutes for me

on 14. April 2026, 23:06 by GorgeousNicko
The demanding part for me was identifying the circled digits. That aside, not too tough. Fun, though!

on 14. April 2026, 22:46 by wuc
Looked easier than it was. 3* to me. Great break in logic. Thx for sharing.

Difficulty:2
Rating:95 %
Solved:100 times
Observed:2 times
ID:000SBF

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