You find an example here: Walls.
Solution code: The first column (from top down) followed by the last row (from left to right). For each cell with a linesegment a s for a vertical (german: senkrecht) segment and a w for a horizontal (german: waagerecht) segment. Ignore cells with numbers, so these are two times seven letters.
on 1. November 2011, 20:55 by Micha
Daumen hoch für schöne Symmetrie.
on 1. November 2011, 14:08 by Statistica
Sehr gut. Ein paar Schlussweisen erinnern an den Slalom.
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