Logic Masters Deutschland e.V.

I made this puzzle following Scojo's prompt to use zipper lines along with skyscraper clues.

• Normal sudoku rules apply.
• Spaces outside the grid are skyscraper clues: they indicate the number of digits seen in that direction, for that effect, digits block any lower digit from being seen.
• Cells at the same distance to the center of a light purple (zipper) line sum to the digit in the line's center, marked with a dot.

Online in Sudokupad

On theme:

• speersäule
• steineichenwald
• schutzstacheln
• zerrwelt / schemenkraft
• zerstörterturm
• blizzach tempel