Oh ja! Ich liebe es! I'm loving it! Reminds me on this problem and the corresponding chats in the comments at @eniolw's blog. Unfortunately I don't see that I have time here and now to look into it more. Fun! Hope to read at least the comments here soon.

https://steemit.com/blog/@eniolw/chesspuzzleofthedaydec32019problemadeajedrezdelda3-dic-2019-q2z71h1v5g