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I know Mah Jongg

Full game

Play at the table

Play one full hand against three computer players: the Charleston, drawing and discarding, calling, Joker swaps and Mah Jongg. Winning hands come from our fictional 2026 Practice Card (made up for practice), not the NMJL card.

You play with Ruth, Lin and Mae (computer players). You start as East; East moves one seat to the right each hand.

Table rules used in this game
  • The deal [Official Rule] — East takes 14 tiles and discards first; everyone else takes 13.
  • Charleston [Official Rule] — First Charleston is required: Right, Across, Left, 3 tiles each. The last pass may be a blind pass. A second Charleston (Left, Across, Right) happens only if everyone agrees, then an optional courtesy pass of 0–3 tiles with the player across. Jokers are never passed.
  • Turns [Official Rule] — Play moves to the right. Draw one tile, then discard one and name it aloud.
  • Calling [Official Rule] — You may call a discard to expose a Pung or larger, or to declare Mah Jongg. You may not call for a pair or single unless it completes Mah Jongg.
  • Call priority [Official Rule] — A call for Mah Jongg beats a call for an exposure. When two players make the same kind of call, the player next in turn after the discarder gets it.
  • Jokers [Official Rule] — On your turn you may swap a matching natural tile for a Joker in any exposure. A discarded Joker is dead and cannot be called.
  • Concealed hands [Official Rule] — A (C) hand cannot have exposures; it may take a discard only for the final Mah Jongg tile.
  • Wall game [Official Rule] — If the wall runs out with no Mah Jongg, the hand ends with no score.
  • Payouts (practice) [Official Rule] — Self-drawn Mah Jongg: each player pays double the hand value. Mah Jongg on a discard: the discarder pays double, the other two pay single. Jokerless doubles the value, except on hands that can't use Jokers. Many tables use house variations.
  • Wrong Mah Jongg [Etiquette] — At a real table (NMJL rules), declaring Mah Jongg with an incomplete hand makes your hand dead once you've exposed it; caught before exposing, play continues. Here you get a warning and keep playing.
  • Computer players [Strategy Tip] — Computer players aim for the practice hand closest to their tiles, never throw Jokers, and call only when it helps.