Hello, welcome to my profile. I'm a German mathematician/mathematics educationalist. I work as a coach in the field of occupational rehabilitation in Innsbruck, the capital of Tyrol.

My YouTube-Channel:

Personal bests in puzzle battle

51 in puzzle battle, 20. December 2021:

 30 puzzles in the first minute



My blog,


My notebooks

I'm especially fascinated by islamic patterns and how to (re)construct them with ruler and compass or their virtual implementations.

This is a piece of my art works - Spreading structure.

You scrolled all the way down, now you can see me at the right hand-side.