- Bet levels X and Y, where Y is twice X, is given in the table list.
- The winner becomes (or stays) East. Other players are assigned winds based on their seating relative to the winner.
- Players are not allowed to claim discarded tiles to complete a chow, except when going Mahjong.
- Whenever a player draws a tile and extends an already declared pong to a kong, all other players pay the amount X to the player who performs the pong-to-kong.
- Whenever a self-drawn kong is declared, all other players pay the amount Y to the player who declares the kong.
- Whenever a player claims a discarded tile to declare a kong, the discarding player pays the amount X+Y to the player who claims the discarded tile.
- Points are never calculated; only kongs and going Mahjong matter.
- When a player declares Mahjong on self-draw, a lucky tile is drawn for a potential extra bonus.
- If a player declines mahjong on a discard, only self-drawn mahjong is permitted thereafter, for that player.
- If any player at the table has less than 3Y in cash on the table, the game ends.
A player can declare Mahjong with a hand consisting of four sets and a pair, or with 13 orphans, or with seven pairs. On win on self-draw, the other players pay the winner Y each. On win on discard, the discarder pays Y. If a player wins by robbing a kong, the robbed player pays for the other players.
Lucky Draw (Horse)
If a player declares mahjong on self-draw (but not on robbing the kong), that player draws the next tile from the wall. If the winner is East and draws a East, 1, 5 or 9, the other players must pay the winner an additional Y. The same applies for South with South, red dragon, 2 or 6; West with West, green dragon, 3 or 7; North with North, white dragon, 4 or 8.
There are no special hands.
There is no scoring, only monetary settlement.