The rules of Sichuan Mahjong are quite simple. In the game, players must use free cards to make choices. In other words, the so-called free card is the card selected by the player on the screen. If there is space on its left or right side or both sides at the same time, and there is no other card covering it, cards of the same suit can eliminate each other. When all cards are eliminated, the player is the winner of the round. During the game, players can choose "Hint", "Shuffle", "Replay" or "Pause" to assist in the game. There is a game time reminder at the bottom left of the screen. Players can check it by themselves to avoid the game time being too long.