Logic Masters Deutschland e.V.

Capturing the Cyclone

(Published on 28. July 2026, 14:47 by KenGlue)

It's been a year since I last set anything, so any feedback is highly appreciated!

Solve on Sudokupad

TEN LINES
– Every line can be broken into one or more continuous segments such that each segment individually sums to 10.
(for example, 1901342 would be a valid line since it can be broken as 190|1342)

COUNTING CIRCLES
– Each digit placed inside a big white circle counts the amount of times that digit appears in a circle.

WHITE KROPKI
– Digits in cells separated by a small white circle are consecutive.

DOPPELGANGER
– Every row, column, and region contains the digit 0 always, as well as eight out of the nine digits from 1 to 9 (ie, it's missing a digit that is not 0).
– No two rows, no two columns, and no two regions may be missing the same digit.
– For each 0 in the grid, the digits missing in its row, its column, and its box must be three different digits, yet zeros always have a null value (ie, zero).

Solution code: Column 8 (9 digits)


Solved by jennyaa, Snookerfan, bansalsaab, PierreTombal, SKORP17, DarthV13, jmw, The Book Wyrm, laquartetfan, bodemeister, kangaroo, wullemuus, han233ing, BlazingSnow, steeto, Zzzzz..., earthpuzzles
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Comments

on 3. September 2026, 17:22 by earthpuzzles
Had to study this for a while before I understood it! Fascinating puzzle, and really enjoyable solve.

on 7. August 2026, 14:32 by bodemeister
Very nice interactions among the ten lines, doppelganger, and the counting circles. Thanks for the puzzle!

on 28. July 2026, 19:18 by bansalsaab
Amazing

on 28. July 2026, 18:55 by Snookerfan
Excellent! I wish I was a bit more proficient at doppelganger puzzles, but on the other hand I really love the challenge. Thanks for this brilliant work and welcome back!

Difficulty:5
Rating:92 %
Solved:17 times
Observed:1 times
ID:000U2Z

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Solution code:

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