Logic Masters Deutschland e.V.

Choose Your Fighter (Between Lines or Double Arrows)

(Published on 18. February 2026, 23:57 by damo_89)

A setting challenge for myself, this puzzle can be solved with the lines either acting as between lines or double arrows (the solution is different for both puzzles). I have ideas for a 9x9 but looking to gauge interest in such an idea. Good luck!

  • Normal 6x6 sudoku rules apply: Place the digits 1 to 6 once each in every row, column, and 3x2 box
  • Then, either:
    • Between Lines: Digits along a grey line must be strictly between the digits in the two connected circles; or
    • Double Arrows: Digits along a grey line sum to the same as the sum of the digits in the two connected circles

Play Between Lines version on Sudokupad
Play Double Arrow version on Sudokupad

Solution code: Row 6 of Between Lines puzzles followed by Row 6 of Double Arrows puzzle


Solved by Perladel, Siebuhh, L00ping007, anton_anton, GorgeousNicko, palul95, gdc, emoney1374, thomamas, ScatterBrain, tallcat, Krisonium, tuturitu, Mozart40, zrbakhtiar, marcmees, Wuschel, radium, ... FibonacciCascade, clapslat, RickiFerrara, mogest, teuthida, Mr. Happy, ana_shadow, Thibaa, abihummel, Javier Rebottaro, Lithium-Ion, Malakree, michael_787, saulg39, MaciekZ, W1n5t0n, docpayce
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Comments

today, 15:28 by michael_787
The between lines version was super easy, took me less than 2 minutes. The other was slightly trickier. I enjoyed both.

yesterday, 20:40 by boggles
neat! what a cool idea and tidy execution :D

yesterday, 13:12 by rojspencer
Fun solving the same puzzle twice with two different solutions.

yesterday, 08:26 by Wuschel
Very nice, thanks!

yesterday, 03:57 by tallcat
Nice and smooth. A 9 x 9 along these lines would certainly be of interest!

yesterday, 03:01 by ScatterBrain
Nice how this works both ways!

yesterday, 01:31 by gdc
Very smooth. I liked how the solve paths felt quite different between the puzzles.

Difficulty:1
Rating:98 %
Solved:103 times
Observed:0 times
ID:000RHA

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