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Taiwanese mahjong · tai pattern

海底撈月

hǎidǐ lāo yuè · last-tile self-draw

1台You self-draw the last drawable tile: 1 tai, plus 自摸.
Example
chow一萬1二萬2三萬3
四萬4五萬5六萬634772349995

South self-draws, on the last drawable tile, East round, East deals.

Self-draw 自摸 1 + Last-tile self-draw 海底撈月 1 = 2 tai

In one line1 tai by default. Other values: ZSY (宅神爺) 2.

Conditions

  • The last 16 tiles of the wall are never drawn, plus one more per kong.
  • You draw the last live tile and win on it.

Each source's value

1 台Default · Gamesofa (神來也), IGS (明星3缺1), MJOnline (戲谷), Mahjong Masters, zh Wikibooks
2 台ZSY (宅神爺)

With other lines

It replaces nothing and nothing replaces it: it adds to every other line.

In the example it adds to:

The example, settled

Who pays what (base 100, 20 per tai)

  • East 莊base 100 + 3 tai × 20 incl. dealer 1−160
  • Westbase 100 + 2 tai × 20−140
  • Northbase 100 + 2 tai × 20−140
  • South collects+440

Dealer and streak tai are added only to payments the dealer is part of. Open this hand in the calculator →

Common questions

海底撈月: how many tai, and more

How many tai is 海底撈月 (last-tile self-draw)?
1 tai by default. Other values: ZSY (宅神爺) 2.
What does 海底撈月 not stack with?
海底撈月 neither replaces nor is replaced by another line; it adds.
How do I check whether my hand scores 海底撈月?
Tap the hand into the tai calculator and it lists every line. Open this page's example in the calculator.