Logic Masters Deutschland e.V.

Three by Three Minis

(Published on 12. February 2026, 19:07 by SirMoose)

Three by Three Mini - Lines
by Sir Moose

Normal Sudoku rules do not apply.

Place the digits from 1-9 in the grid so that they do not repeat in any row or column. Digits can (and will) repeat in each 3x3 box. Each box will use exactly 3 of the digits from 1-9.

Digits cannot repeat on any lines.

German Whisper Lines: Consecutive digits along the green German whispers line must differ by at least 5.

Renban: Digits along the purple renban lines must be a set of consecutive, non-repeating digits (in any order).

Modular Lines: Every 3 consecutive cells along a teal modular line must contain a complete set of residuals modulo 3. i.e: one from (3,6,9), one from (1,4,7) and one from (2,5,8).

Region Sum Lines: Box borders divide each blue line into segments with the same sum. Different lines may have different sums.

Entropic Lines: Every 3 consecutive cells along each tan line must contain a low digit (1,2,3), middle digit (4,5,6) and high digit (7,8,9).

Thermometer: Digits must increase along a thermometer starting at the bulb end.




Link on Sudokupad



Solution code: Row 4

Last changed on on 13. February 2026, 14:30

Solved by SirWoezel, sujoyku, SKORP17, Jafacake, gdc, BlackWolf, Krisonium, TeamSchmidt, L00ping007, palpot, Dendr, Bobs, TheJRMY, Julianl
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Comments

on 14. February 2026, 22:45 by TheJRMY
I really enjoyed this puzzle but found it to be much more difficult than 2*.

on 13. February 2026, 14:30 by SirMoose
Fixed blue square in image.

on 12. February 2026, 19:07 by SirMoose
This is a remake of an earlier puzzles that didn't get solved many times. I added a rule and made it a bit more approachable. I hope you enjoy!

Difficulty:3
Rating:89 %
Solved:14 times
Observed:0 times
ID:000RG3

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Solution code:

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