is a 54 only um so they they analyze different defenses and how the decisiveness is with respect to different defenses that are not really popular under classical chess and the results are interesting if you play chess but i would say they're rather they're kind of aha okay if you do not play chess because they consider individual moves and so on what is an interesting part is um this right here where they look at they look at one move that in classical chess so e4 is a very very um popular opening where you move your e