Please supply evidence. All links in your comment relate to a patent to an invention where lasers are an essential part of the claims. I'm not convinced that rules alone would be patentable subject matter.
> THE FILES OF PATENTS that have been granted are a fruitful hunting ground for forgotten games, although going through these files, as anyone who has ever been involved in a patent search well knows, is a time consuming job. Often the patented games are downright silly, such as a set of dominos made of rubber so that they can double as ink erasers (No. 729,489) or a sliding block puzzle with edible pieces so that a player who despairs of a solution can find consolation in gratifying his stomach (No. 1,274,294). Often the patents are repetitious: There are over a hundred variations of the well-known checkerboard and over a thousand different baseball games.
> But often the patented games are a fascinating reflection of their time: races to the North Pole, war games to capture the Kaiser, automobile games, in the infancy of the automobile, and radio games for the crystal-set fanatic.
Thank you. I concede, this one is proof that an application that's essentially board game rules can be accepted. Whether rules not tied to a particular machine should be accepted is debatable. https://en.wikipedia.org/wiki/Machine-or-transformation_test...?
Please supply evidence. All links in your comment relate to a patent to an invention where lasers are an essential part of the claims. I'm not convinced that rules alone would be patentable subject matter.