Hong Kong Mahjong · 1 fan

Last Tile Win (海底撈月) in Hong Kong Mahjong: Fan, Examples and Odds

In Hong Kong mahjong, the Last Tile Win (海底撈月, "catching the moon from the bottom of the sea") is worth 1 fan: you draw the last tile of the wall and it completes your hand for a self-drawn win.

It always comes together with Self-drawn (1 fan), so it is at least two fan; one more — No Flowers, All Chows, a dragon pung — and you reach the 3-fan minimum.

The rules for the Last Tile Win

• The tile you draw is the last tile of the wall — nothing is left after it
• It must be a self-draw; if someone discards the last tile and you win on it, this site gives no Last Tile fan (some tables score that separately as 海底撈針, this site doesn't)
• This site keeps no dead wall: the wall is played down to its last tile
• If the last tile is your replacement after a kong and you win on it, both Last Tile Win and Win on a Kong count
• If the last tile drawn is a flower, there is no replacement tile left and the hand is a draw

After the last tile has been drawn, its discard can only be won on — no chow, pung or kong (there's nothing left to draw).

How the Last Tile Win is scored

The fan below are computed live by the same scoring code the game uses.

Common combinations:

How it relates to other hands

• Self-drawn: a Last Tile Win is always self-drawn; both count.
• Win on a Kong: if the last tile is a kong replacement, both count.
• Robbing a Kong: another timing fan; robbing is a win on someone else's tile, so it never combines with the Last Tile Win.
• The shape doesn't matter: All Chows, All Pungs, Mixed One Suit — the fan simply add up.

Last Tile Win odds

We let four of this site's computers (Normal level) play 100,000 hands and recorded how each one ended.

• 19% of hands reached the last tile with no winner and ended in a draw.
• The Last Tile Win came up 531 times, 0.66% of all wins — roughly once every 188 hands.
• Those wins averaged 4.1 fan.

You can't aim for a Last Tile Win — you don't control when the wall runs out. The practical lesson is: if you're still ready near the end, don't break your hand; the last tile is a chance too. To see how the last few tiles play out, open a table of online Hong Kong mahjong.

The Last Tile Win in other mahjong styles

• Sichuan mahjong: 1 fan for the last-tile self-draw, plus "hai di pao" for winning on the last discard (Sichuan mahjong Last Tile, Hai Di Pao)
• Taiwanese and Japanese mahjong also reward a self-draw on the last tile, scored differently: see the Taiwanese mahjong tai list and the Japanese mahjong yaku list
• Chinese Official (Guobiao): see the Guobiao fan list

FAQ

How many fan is the Last Tile Win?

In Hong Kong mahjong it's worth 1 fan; with the Self-drawn fan it always brings, at least 2 fan.

Does winning on the last discard count?

Not on this site. The Last Tile Win requires self-drawing the last tile; winning on a discard only scores your other fan. Some tables score it separately as 海底撈針 — agree before you start.

What if the last tile is a kong replacement?

Both Last Tile Win and Win on a Kong count, plus Self-drawn: 3 fan.

What if the last tile is a flower?

There's no tile left to replace it, so the hand is a draw.

Related hands

Self-Drawn 1 fan Drawing your own winning tile adds 1 fan: open hands count, who pays, stacking with Concealed and Win on a Kong, and how often it happens. Win on a Kong 1 fan Self-draw your win on the replacement tile after a kong: 1 fan. Any kong counts, flowers don't; who pays and how often it happens. Robbing a Kong 1 fan Win on the tile someone adds to their kong: 1 fan. Added kongs only, who pays, how it helps you reach the minimum, how often it happens.