U-Bahn
(Published on 14. August 2023, 10:54 by Piatato)
This is a puzzle that I set for wisty's birthday, which they have encouraged me to publish. :-)
Rules:
Draw a loop network through the centers of some cells, which may branch or turn, but may not have any dead ends.
A digit 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.
Solution code: For each column except the last, from left to right, the number of lines leading to the right from that column
Comments
on 28. September 2024, 22:56 by zetamath
This is one of my favorite vanilla ubahns I've done, great construction, and really plays to the strength of the genre!
on 10. September 2024, 15:31 by The Book Wyrm
Great puzzle! Some very interesting logic in there.
on 6. September 2024, 18:38 by Samish
Great construction!!
on 25. February 2024, 08:04 by Christounet
Very well and intricately crafted. A pleasure to progressively unravel ! Thanks :)
on 8. November 2023, 00:31 by lerroyy
Very nice puzzle! but quite hard for my first pure u-bahn
on 15. August 2023, 13:32 by marcmees
Nice break in. thanks
on 14. August 2023, 16:16 by Agent
Very nice puzzle, many clever tricks!
on 14. August 2023, 12:45 by wooferzfg
Tricky and elegant, thanks!
on 14. August 2023, 11:30 by wisty
thank you so so so much!! solving this was a delight, i love how powerful column 2 becomes once you wrap your head around the break in
on 14. August 2023, 11:04 by filuta
very enjoyable solve mod a dumb mistake and the usual u-bahn suffering
