The House edition of mahjong, built on the Rummy siblings' kit — chows, pungs, kongs and claims against three AI opponents, 138 rule modes (Hong Kong, riichi-style, MCR and house tables), 2,200 solver-checked puzzles in three kinds (complete the hand, name the waits, best discard) plus endless random ones, a house assistant with play-for-me and autopilot, 57 tile styles drawn at runtime, 194 table layouts including seventy neon mahjong presets, 60 wall shuffles with deal seeds, a floating Look panel, mode briefs, keyboard play and five languages.