Japanese Mahjong Scoring Rules - Steps of Calculation

Steps of Calculation

The payment to the winner of a hand is calculated as follows:

1. Counting han (飜)
2. If it is five han or more, it is mangan (満貫) or more and the calculation of basic points is omitted
3. Counting fu (符)
4. If it is clear that the han and fu yield more than mangan, the calculation of basic points is omitted
5. Calculating the basic points based on the fu and han
6. Multiplying the basic points depending on whether the winner is the dealer or non-dealer, and whether the hand is won by tsumo or ron
7. Adding bonuses based on the number of counters
(8. Adjusting the payment by the wareme rule)

In the case of a draw, points are transferred according to the nō-ten bappu rule. In the event of a penalty, such as claiming a win with an illegal hand, then points are transferred via the chombo rule.

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