Start with these ideas
- A Kong in the hand is not enough; the immediate Kong replacement must be the winning tile.
- The house example is Dragon Kong 1 + Self-draw 1 + Kong Draw 1 = 3.
Reference values below follow the Hong Kong Mahjong Association (HKMA) rules. Worked calculator examples use our browser game’s house rules; check the differences before comparing results.
The winning tile must be the Kong replacement
Declare a legal Kong, take its replacement and complete the hand with that tile. A Kong declared earlier in the hand does not make a later normal draw a Kong Draw win.
The example has an open Red Dragon Kong, three Chows and a 5 Bamboo pair. Its eleven concealed tiles include the winning tile; the four dragon tiles belong in the meld area.
One event faan alongside self-draw
HKMA lists Kong Draw at 1 faan, and our ordinary house calculation adds Kong Draw 1 with Self-draw 1. The saved dragon Kong contributes another 1, reaching 3. House limit hands stop ordinary additions.
The cited HKMA rule resets Kong Draw eligibility when a flower is drawn before the winning replacement. The calculator does not replay the draw sequence: select the circumstance only when the actual sequence supports it.
Flower replacement and last normal draw differ
A flower is not a declared Kong. Our calculator rejects Kong replacement without a Kong or without self-draw. Its Kong replacement and final normal wall draw are separate options, so they do not score together as the same draw.
Compare a replacement with a normal draw
Load the example and keep self-draw selected. Change only the winning circumstance to Normal: the house total falls from 3 to 2, leaving Dragon Pung/Kong and Self-draw. At the default minimum the ordinary draw cannot win.
Sources
A hand to try
Win: self-draw · Seat: East · Round: East · Minimum: 3. Declared melds and special draw context are loaded with the hand.
With the saved win method, seat wind and round wind, this example is expected to score 3 final faan under sc_hk13_v1_2. The calculator also shows every contributing pattern and whether the hand reaches the selected minimum.
Try this in the calculatorCheck your understanding
Which statement matches our house rules?
Choose a statement to see the explanation.
A few things to know
Does a concealed Kong also allow a Kong Draw win?
A legal concealed Kong can have a winning replacement too. The event condition is the immediate draw source; any Concealed Hand bonus must be checked separately because HKMA and our game use different Kong conditions for it.