Rust translation uses two-space indentation while the standard for the language (rustfmt and the codewars tab size) is four.

I mean resources that have typical examples that can help in understanding programming concepts

This kind of "mistake" is exactly something what Mel the Real Programmer would do when creating software for Bundesamt für Organisation in the early computing era.

It's no coincidence. jcsahnwaldt was working for the Bundesamt für Organisation back in 1964 and purposely made this "mistake" all in preparation for this kata which he had already planned.

According to footnote 6, the Swiss Bundesamt für Organisation made a mistake in 1964. I have no doubt footnote 6 is telling the truth.

What do you mean by "these type of problems"? The languages of Switzerland?

Any resources that can help understanding these type of problems.