Mahjong League Scoring

When you Mahjong, you receive the point value of your line.

Exceptions:

1. If you draw your own tile for Mahjong (including Joker swap for Mahjong), + 10 points.
2. If you Mahjong without using a Joker (excluding singles and pairs lines), double your score.
3. If you discard a tile for someone else's Mahjong, - 10 points per exposure of Mahjong winner. One exposure per player is complimentary. Example: If the player is playing the line FFFF DDD NEWS DDD and the player has FFFF DDD and DDD exposed and you discard a south wind that results in a mahjong, then you would receive -20 points. If the player only had FFF exposed then you would receive no negative points. This is to help with the ability to appropriately penalize the ability of playing defensively.
4. If you have a wall game (where no one wins), each player receives 10 points.