Logic Masters Deutschland e.V.

U-Bahn LITSO (6x7)

(Published on 27. December 2024, 18:01 by the_cogito)

This is the second to last installment in this series of puzzles. I'll publish something smaller (and easier) still shortly. Enjoy!

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.
The puzzle:
Solve on Penpa (Includes answer check for the loop only)
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.

Last changed on on 28. December 2024, 15:51

Solved by dumediat, ONeill, jessica6, Zzzyxas, Piatato, Paletron, Mr_tn, misko, Jesper, jkuo7, tuturitu, filuta
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Comments

on 9. January 2025, 18:10 by Jesper
Very nice, thanks!

on 30. December 2024, 02:14 by Piatato
Lovely!

Last changed on 28. December 2024, 15:50

on 28. December 2024, 15:41 by jessica6
you mean, for every column except the *last*

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Yes, thanks! My bad haha

Difficulty:3
Rating:98 %
Solved:12 times
Observed:0 times
ID:000LAU

Enter solution

Solution code:

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