> In reality, there is no 6 Nimmt! World Championship.

Actually, it seems, there is one[1]. The german Game Company selling the game, has one running since 2018 [2].

[1] https://blog.amigo-spiele.de/2025/05/27/interview-6nimmt-wel...

[2] https://blog.amigo-spiele.de/organizedplay-6nimmt/