Pokerain is one of the few blockchain board and card game projects in the global market, and it is also an interactive board and card game project that has been implemented and operated. As a token of Pokerain, MMDA utilizes the consensus mechanism, cryptography principles, and distributed storage principles of blockchain to solve the pain points of fairness, impartiality, and security in the chess and card industry. It develops and operates blockchain chess and card games through technological crowdfunding....