U-Bahn with Empty Clues (Toroidal) (asst. the_cogito)
(Published on 5. April 2025, 23:23 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, turn, or empty cell) appears in the corresponding row or column, irrespective of the line shape's rotation.
The grid is toroidal. That is, the left and right edges should be considered adjacent, and likewise with the top and bottom edges.
SudokuPad
A clue outside the grid indicates how many times the corresponding line shape (i.e. a cross, branch, straight line, turn, or empty cell) appears in the corresponding row or column, irrespective of the line shape's rotation.
The grid is toroidal. That is, the left and right edges should be considered adjacent, and likewise with the top and bottom edges.
SudokuPad
Solution code: For each column, the number of lines leading right from that column.
Last changed on on 7. April 2025, 01:22
Solved by wooferzfg, the_cogito, Jakhob, lupo, Agent, tuturitu, Piatato, Jesper, akamchinjir, tuace, PixelPlucker, Paletron, r45, jessica6, itweb, jkuo7, Mr_tn, Nick Smirnov, widjo, Zzzyxas, misko, AnnaTh, ildiko, RJBlarmo, ibag, wullemuus, cyddrdrd, ns08, skwylcy
Comments
on 25. May 2025, 15:42 by ibag
Wonderful!
on 11. April 2025, 08:24 by r45
Six stars!
on 6. April 2025, 14:18 by Jesper
Compelling solution path!
on 6. April 2025, 09:40 by Piatato
Excellent!
on 5. April 2025, 23:32 by the_cogito
Beautiful puzzle!
on 5. April 2025, 23:24 by KNT
This puzzle was created at an in-person event.
