Logic Masters Deutschland e.V.

U-Bahn Sweeper (2)

(Published on 28. June 2026, 23:53 by KNT)

Draw a totally connected loop network through the centers of some cells, which may branch or turn, but may not have any dead ends.

A clue outside the grid indicates how many times the corresponding line shape (i.e. a cross, branch, straight line, or turn) appears in the corresponding row or column, irrespective of the line shape's rotation.

A clue inside the grid may never be visited by the loop network, and indicates how many different line shapes (including unvisited) occur in the up to 8 surrounding cells.

SudokuPad

penpa+

Solution code: For each row except the last, the number of lines leading down from that row. X if greater or equal to 10.


Solved by cyddrdrd, SeveNateNine, Playmaker6174, Piatato, tuace, Paletron, Jesper, h5663454, ibag, zzw, Fusce, Zzzyxas, lupo, ONeill, peacherwu2, itweb, akamchinjir, Nick Smirnov, hepcecob, misko, Agent, Alex, MagnusJosefsson, widjo, Puzpensu
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Comments

on 6. July 2026, 08:01 by Agent
Great puzzle!

on 1. July 2026, 19:37 by peacherwu2
It appeared impossible at times. Very beautiful, very difficult!

on 1. July 2026, 02:09 by ONeill
Cool, thank you

Last changed on 1. July 2026, 06:32

on 29. June 2026, 22:50 by ibag
Great - and not too hard! Thank you!

on 29. June 2026, 15:56 by Jesper
Great puzzle, thanks!

on 29. June 2026, 11:50 by tuace
Great idea, wonderful puzzle :)

on 29. June 2026, 11:30 by Piatato
Great fun, thanks!

on 29. June 2026, 09:11 by Playmaker6174
Phew, what a lovely and rewarding puzzle! Very consistent difficulty for me throughout there, and I enjoyed the variety of cool (and intricate) logic hidden within this seemingly symmetrical setup x)

on 29. June 2026, 02:19 by cyddrdrd
Very cool break in with a smooth and enjoyable journey to the end!

Difficulty:5
Rating:100 %
Solved:25 times
Observed:0 times
ID:000TID

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Solution code:

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