A game of chess tends to take a long time. For some people, it is days or even months. This wall mounted chess set will presumably allow games to go on for an indefinite time. Since the game stays out of the way, it is quite unlikely to be knocked over, and sits prepared to resume.
Pieces rest on acrylic shelves and an included “last move” marker helps to keep track of the game. We’d say this game works better as a placeholder and easy reminder of the position of pieces, because playing chess on a vertical board is going to take some time getting used to. Costs $300.