Need help with old cipher

I found a "drawing" in a 60 year old notebook of my grandfather and I am trying to solve it. First I thought it was the "Drunken bishop algorithm" but then I found out that this algorithm isn't this old (presumably). My grandfather was an avid chess player in Austria, so I assume it has something to do witch chess or a chessboard and the solution is gonna be in German.

Can you tell me what kind of cipher this is?


* This article was originally published here


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