If you are unfamiliar with U-Bahn, here is a guide that covers the core logic.
Draw a totally connected loop network through the centers of some unshaded 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.
Lösungscode: For each row except the last, from top to bottom, the number of lines leading down from that row
am 12. Juli 2025, 14:42 Uhr von Agent
Very cool and distinctive U-Bahn logic, I enjoyed every step!
am 29. Juni 2025, 23:33 Uhr von Christounet
Nice logic in here ! Especially how the clues work in the opening. Thanks :)
am 28. Juni 2025, 07:58 Uhr von Piatato
Very cool, thanks!