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Japanese mahjong scoring rules: Difference between revisions
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rounding of payments, honba, sekinin barai
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[[Japanese mahjong]] features a very complex scoring system. Every mahjong hand has a value in terms of ''han'' and ''fu'' associated with them. The combination of ''han'' and ''fu'' then corresponds to values indicated from the scoring table, and/or the two numbers of ''han'' and ''fu'' factor into an equation, by which the scoring table is derived. | [[Japanese mahjong]] features a very complex scoring system. Every mahjong hand has a value in terms of ''han'' and ''fu'' associated with them. The combination of ''han'' and ''fu'' then corresponds to values indicated from the scoring table, and/or the two numbers of ''han'' and ''fu'' factor into an equation, by which the scoring table is derived. | ||
==Scoring procedure== | == Scoring procedure == | ||
=== Calculating basic points === | |||
To determine the point value of a hand, the following procedure is used: | To determine the point value of a hand, the following procedure is used: | ||
# If the hand is a [[List of yaku|yakuman]], then look up the 13 han values according to dealer or non-dealer numbers | # If the hand is a [[List of yaku|yakuman]], then look up the 13 han values according to dealer or non-dealer numbers | ||
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: '''Basic points = fu × 2<sup>(2 + han)</sup>''' | : '''Basic points = fu × 2<sup>(2 + han)</sup>''' | ||
After determining the basic points, | === Payments === | ||
After determining the basic points, multiply based on the status as dealer and no-dealer as well as the win by ron or tsumo. | |||
*When a non-dealer wins by tsumo, the player earns 1 × basic points from the other non-dealers, rounded up to a full 100. The dealer in this case pays 2 × basic points, rounded up to a full 100. | |||
*When a non-dealer wins by ron, the discarding player pays the winner 4 × basic points, rounded up. | |||
*When the dealer goes out by tsumo, the dealer scores 2 × basic points from all players, rounded up. | |||
*When the dealer goes out by ron, the dealer earns 6 × basic points from the responsible non-dealer, rounded up. | |||
=== Honba === | |||
In the event of [[ryuukyoku]] or a dealer win, the '''honba''' or '''tsumibou count''' increases by 1 for the next hand. If someone wins a hand and East does not, the honba count resets back to zero. | |||
This count increases hand values increases by a total of 300 per honba. For ron, the discarder pays the additional 300 points. For tsumo, everyone pays an additional 100 each. These extra points are added to the hand value after the capping as mangan, haneman, etc., so a non-dealer mangan tsumo with 2 honba costs 2,200 for a non-dealer and 4,200 for the dealer. | |||
In the case of [[sekinin barai]], the yakuman tsumo payment is borne entirely by the discarder of the ponned tile, who also has to pay 300 per honba. On a ron, the yakuman value is split between the discarder of the winning tile and the discarder of the earlier ponned tile. Most rules have the winning tile discarder pay for all honba. | |||
==Scoring table== | ==Scoring table== | ||
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|yakumanron=32000 | |yakumanron=32000 | ||
}} | }} | ||
==External links== | ==External links== | ||
[[Category:Game rules]] | [[Category:Game rules]] | ||