Logic Masters Deutschland e.V.

watskeburt

(Published on 31. December 2025, 01:59 by aqjhs)

I made this puzzle following Scojo's prompt to make a squishdoku puzzle using the dutch flat mates constraint.

  • Place a digit from 1-9 into every cell such that digits do not repeat in a row, column or 3x3 box. There are nine 3x3 boxes that overlap at the dotted lines.
  • Dutch Flat Mates: Every 5 in the grid must have a 1 directly above it or a 9 directly below it. It may have both, but it doesn’t need both.
  • A digit in a circle indicates exactly how many circles contain that digit. That includes the circles attached to lines.
  • Digits along a line have a sum equal to the sum of the two digits in the attached circles.

Online in Sudokupad

See also:

Solution code: Column 1, top to bottom.

Last changed on -

Solved by tuturitu, SKORP17, gdc, Scojo, Sotehr, Exigus, Nagesh, brimmy, ChinStrap, ViKingPrime, Voidslime, Krisonium, RightHandedNeutrino
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Comments

on 1. January 2026, 21:39 by ViKingPrime
A tricky puzzle for newcomers to squish but a lovely flow to those who are more familiar.

on 1. January 2026, 18:12 by Exigus
I loved it, great use of circles. Thanks!

Difficulty:3
Rating:91 %
Solved:13 times
Observed:0 times
ID:000QQF

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