This puzzle was created by Jakhob and wooferzfg. It is a variant of U-Bahn with empty cell clues, which originates from a series by KNT.
If you are unfamiliar with U-Bahn, here is a guide that covers the core logic.
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 in how many cells the corresponding behavior (i.e. turn, straight line, branch, cross, or unvisited) occurs in the row or column, irrespective of rotation.
Lösungscode: For each column except the last, from left to right, the number of lines leading to the right from that column
am 16. September 2024, 18:58 Uhr von zetamath
A very worthy tribute to my favorite ubahn series by KNT. Great puzzle, and actually I'd put this at 4 stars, I didn't even break it once!
am 12. Juni 2024, 16:34 Uhr von zzw
Awesome puzzle! Really cool breakin and lots of fun throughout.
am 1. September 2023, 08:17 Uhr von Agent
Fantastic puzzle, thanks!
am 7. August 2023, 12:02 Uhr von Statistica
Wow! Raffiniert und sehr (schön) schwierig.
am 3. August 2023, 22:04 Uhr von Myxo
Really cool puzzle!
am 3. August 2023, 00:33 Uhr von Piatato
Awesome puzzle, thanks!
am 31. Juli 2023, 14:25 Uhr von ONeill
Very clever puzzle :)
am 30. Juli 2023, 16:27 Uhr von polar
Beautiful! Thanks
am 30. Juli 2023, 05:07 Uhr von KNT
I'm a huge fan of this variation of the genre, thanks for making this... fun puzzle! I must also add that there is a step in the middle that is absolutely top class, other solvers will definitely know what I am referring to.