MangJustic

MangJustic is a local fair-play control tool for mahjong sessions. It ties together the parts of a game that are easiest to argue over, miscalculate, or let slip into chaos into one traceable, checkable flow for the whole session. You can record concealed tiles and open melds at any time to verify legal tile counts, whether chi, pon, or gang claims hold, and whether a hand is in tenpai or has won—and log violations by player into the current session record. From discards, hand tiles, and melds already on the table, it estimates what remains in the pool, which tiles are dangerous, and which are effectively gone, to help you decide what to play, what to keep, what to guard against, and what to chase. Before play begins, you can generate and verify a shuffle code and check whether the wall is balanced. During the game, it tracks dealer rotation and consecutive dealer wins, and uses a turn timer to curb slow play, logging timeouts as violations. When disputes arise, you can look up standard rulings for common situations, apply them consistently alongside your own house rules, and record each decision in the session. When the game is over, the app rolls up a compliance score, player-level performance, violation and ruling counts, and key findings so you can see how cleanly the table was run and where problems showed up—and you can start a fresh session when you want to clear the slate. In practice, it works like a pocket referee and scorekeeper at the table: rules have a basis, the process leaves a trail, arguments have a record, and review has numbers—so everyone can play with clarity and confidence.