Mahjong Competition Rules – advanced

Extra fan – honours, terminals

Dragon Pung 2 points - pung/kong of dragon; Seat Wind 2 points - pung/kong of the seat wind of the player who Hu

Prevalent Wind 2 points - pung/kong of the prevailing wind in the round that is currently played; Seat Wind and Prevalent Wind can be both added for the player whose seat wind is currently prevailing

Pung of Terminals or Honours 1 point - either pung/kong of terminal tiles or pung/kong of a wind that is not prevailing and not the seat wind; terminal tiles are any 1 or 9

Extra fan – hand building

Self-Drawn 1 point - self-drawn win; Concealed Hand 2 points - cannot claim discards to meld, can only claim to win; the only melds allowed are flower tiles and concealed kongs, win by discard is allowed

Fully Concealed Hand 4 points - cannot claim discards at all, the only melds allowed are flower tiles and concealed kongs, must be self-drawn win, score Fully Concealed Hand 4 points instead of adding up Concealed Hand 2 points + Self-Drawn 1 point

Last Tile 4 points - 3 of the same tile are seen on the table in discards and melds (but not in standing tiles of the player), the 4th tile is the winning tile

Closed Wait 1 point - winning tile completes a chow in the middle; must check if a different tile could be imagined to complete the winning hand, in which case Closed Wait cannot be scored; example - 4 completing a chow in 33-3(4)5, Closed Wait is not scored as 5 can be imagined to complete a pair as 333-5(5)

Edge Wait 1 point - winning tile is a 3 that completes 123 or a 7 that completes 789; must check if a different tile could be imagined to complete the winning hand, in which case Edge Wait cannot be scored; example - 3 completing 123 in 12(3)-345, Edge Wait is not scored as 6 can be imagined to complete another chow as 123-45(6)

Single Wait 1 point - winning tile completes a pair; must check if a different tile could be imagined to complete the winning hand, in which case Single Wait cannot be scored; example - 1 completing a pair in (1)1-234, Single Wait is not scored as 4 can be imagined to complete another pair as 123-4(4)

if the same tile can be seen as completing more than one of Closed Wait, Edge Wait, Single Wait, then only one of them is scored (does not matter which); example - 7 completing 7789 can be seen as Edge Wait 77-(7)89 or Single Wait 7(7)-789, only 1 point for the wait is scored

Reference sheet

hard to rememeber? - download and print the reference sheet; columns for Type, Points, Name, Description; sections - Common for common fan, Extra for extra fan

sections on the other side of the reference sheet - Other for rare fan, Rare for extremely super rare fan; learn them later in your free time

“Non-Repeat Principle”

The Non-Repeat Principle - at scoring, do not add a fan that is inevitably implied by another fan; example - Melded Hand is always Single Wait, Melded Hand must have Single Wait, there is no way to get Melded Hand without Single Wait, therefore Single Wait is inevitably implied by Melded Hand, therefore 1 point for Single Wait cannot be added to 6 points for Melded Hand

example - sometimes Mixed Shifted Chows is not All Chows and sometimes Mixed Shifted Chows is All Chows, therefore All Chows is not implied by Mixed Shifted Chows, therefore it can be added when present for the total of 8 points

still confused? - check the reference sheet; it has Do Not Add column

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8-point minimum rule
Extra fan - chows
Extra fan - tile types
Extra fan - pungs, kongs, pairs
Extra fan - honours, terminals
Extra fan - hand building
Reference sheet
"Non-Repeat Principle"
"Exclusionary Rule"
Other scoring principles
Advanced techniques
Seat rotation
Is this everything?
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