Logic Masters Deutschland e.V.

U-Bahn under Killer Sudoku (asst. wooferzfg & Jakhob)

(Published on 4. April 2025, 19:11 by KNT)

The first diagram is a standard U-Bahn. Draw a 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.

The second diagram is a 6x6 killer sudoku. Place the numbers from 1 to 6 exactly once in every row, column, and bold outlined region. An area enclosed by a dashed line is called a killer cage. Numbers in a killer cage must be different and sum to the number in the upper-left corner of the cage.

The third diagram indicates exactly how many times that shape piece appears in the same relative cell as the sudoku.

SudokuPad

penpa+

Solution code: For each row except the last, the number of lines leading down from that row

Last changed on on 6. April 2025, 00:19

Solved by the_cogito, wooferzfg, Mr_tn, Jesper, Piatato, MaizeGator, Jakhob, tuturitu, Paletron, akamchinjir, Agent, jmw, Zzzyxas, Christounet, Nick Smirnov, PixelPlucker, ibag, ONeill, r45, MagnusJosefsson, jkuo7, Gliperal, wullemuus, widjo, tuace, zuzanina, misko, AnnaTh, RJBlarmo, Bellsita, ffricke, itweb, Fusce, cyddrdrd, Playmaker6174, Alex
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Comments

on 13. November 2025, 13:32 by Playmaker6174
Sweet and cool puzzle! It's also quite easy to make wrong assumptions in the middle, though xd

on 21. August 2025, 17:36 by cyddrdrd
Nice and cool!

on 18. April 2025, 11:00 by tuace
Very nice :)

on 10. April 2025, 09:40 by MagnusJosefsson
Very enjoyable little puzzle with some cool logic!

on 8. April 2025, 23:59 by ONeill
Very cool, thanks

on 8. April 2025, 19:38 by ibag
Lovely puzzle!

on 5. April 2025, 17:52 by Agent
Cool!

on 4. April 2025, 23:46 by Piatato
Fun!

on 4. April 2025, 22:28 by Jesper
Very nice little puzzle :)

on 4. April 2025, 19:12 by KNT
This puzzle was created at an in-person event.

Difficulty:3
Rating:98 %
Solved:36 times
Observed:9 times
ID:000MR2

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Solution code:

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