CTC U-Bahn Guest Series Extras: Classic U-Bahn
(Published on 14. May 2025, 00:17 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.
SudokuPad
penpa+
Solution code: For each row except the last, the number of lines leading down from that row
Last changed on on 4. January 2026, 22:26
Solved by tuturitu, MaizeGator, Nick Smirnov, Agent, r45, Christounet, marcmees, Piatato, Niverio, tuace, the_cogito, CHalb, Zzzyxas, Mr_tn, ildiko, Myxo, sfushidahardy, zuzanina, chrisbee2, Jesper, wisty, ... MazzleFlush, Uklusi, Fusce, Wrightshoe, kays, lhy2407, cyddrdrd, yttrio, SXH, cowabunghole, GexTed, Euclid, goodcity, CutieRainbow, booteskey, Playmaker6174, SeveNateNine, Alex, LolaK, moss, Tug
Comments
on 13. November 2025, 10:34 by Playmaker6174
Cool little pozl :)
on 21. May 2025, 00:52 by ibag
Very nice - and very minimalistic!
on 14. May 2025, 18:50 by Zzzyxas
Sehr schön.
on 14. May 2025, 17:35 by the_cogito
Fun puzzle, look forward to the series!
on 14. May 2025, 12:17 by Piatato
Nice little treat, thanks!
on 14. May 2025, 08:46 by marcmees
Not the beginner level to begin. :-)
Nice. thanks
on 14. May 2025, 02:02 by MaizeGator
Looking forward to this series to bolster my Ubahn skills