Scoring in Shanghai Mahjong
- Tiles have a base value and whenever a tile pair is removed the score is increased by that value multiplied by half the number of removed tiles.
- Clearing successive pairs of a single tile group (e.g Circles etc) multiples their base value by 2, 4, 8 etc.
- Using the Find a match or Undo function will subtract 10% from your total score.
- Using the Shuffle Board function will subtract 50% from your total score.