Mahjong is a popular bitcoin game. The game uses a set of four matching tiles per player, 36 altogether. The goal is to pair up all the tiles on an 8x8 board. Each tile has four multiple stone patterns, so there are 64 different possible combinations for each tile. It's a complex bitcoin game that takes strategy and skill with a dash of luck. The goal of each mahjong match is to clear the board entirely. The first player to do so wins the game. While some tiles are considered complete as soon as they are matched, most also have special abilities that affect gameplay.