U-Bahn LITSO (5x6)
(Published on 30. December 2024, 18:31 by the_cogito)
This is the last installment in this series of puzzles. I've had a lot of fun with this ruleset, but maybe I should have done the easier ones first in retrospect :P Enjoy!
Rules:
Solve on Penpa (Includes answer check for the loop only)
Solve on Sudokupad (No answer check)
The five standard tetrominoes, ignoring rotation and reflections:
Rules:
- 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.
- Divide the grid into non-overlapping tetrominoes such that every non-black cell is part of a tetromino. Orthogonally adjacent tetrominoes may not be the same shape, regardless of rotation or reflection.
- The loop network must cross the perimeter of every tetromino exactly 3 times. The loop network may pass freely through black cells.
Solve on Sudokupad (No answer check)
The five standard tetrominoes, ignoring rotation and reflections:
Solution code: From left to right, for every column except the last, the number of loop segments extending right from that column.
Solved by ONeill, jessica6, Piatato, MaizeGator, Zzzyxas, misko, Agent, Sniglett, Paletron, The Book Wyrm, Pixel_StrengthReal, Mr_tn, Statistica, Bellsita, Jesper, filuta, jkuo7, tuturitu, csilva, OGRussHood, Uhu
Comments
on 9. January 2025, 18:11 by Jesper
Very mellow after the other puzzles :)
on 3. January 2025, 18:37 by Sniglett
First time doing U-Bahn and this was a really good introduction to the genre for me.
on 31. December 2024, 21:24 by MaizeGator
It took me some time, but I've finally understood the implications of the ruleset. Now I can go back and try the others!
on 31. December 2024, 00:57 by Piatato
Lovely and a relatively easy puzzle if done as a dessert! I think the order is quite right - although I still need to do the new main dish! :-D
