Every time I learn a new programming language I often write Tetris as my first "hello world" type program and yet Henk Rogers' shock troops have yet to find me,

Every time I learn a new programming language I often write Tetris as my first "hello world" type program and yet Henk Rogers' shock troops have yet to find me, I'm sure anyone who asks the same of ChatGPT will be similarly just fine unless they try to publish the result under the name Tetris, whereupon they would be quite rightly set upon for infringing the trademark. I don't know if the fundamental game design however is trademarked in some way as there are many OSS packages that implement the same game design such as Ltris, Petris and so on. Perhaps the problem only appears once it is copied and used for commercial purposes.