Taiwanese mahjong · tai pattern
中洞
zhōngdòng · also also 嵌張, 卡張 · closed wait
1台One wait only, for the middle tile: 4-6 waiting on 5. 1 tai.
South wins on West's discard, East round, East deals.
Concealed hand 門清 1 + Closed wait 中洞 1 = 2 tai
In one line1 tai by default. Other values: ZSY (宅神爺) 2.
Conditions
- Before the win, this was your only wait.
- Waits are counted from the shape of your hand; tiles already out on the table do not change them.
- 全求人 and 半求人 do not add it.
Each source's value
1 台Default · Gamesofa (神來也), IGS (明星3缺1), Mahjong Masters, zh Wikibooks
2ZSY (宅神爺)
–Not listed: MJOnline (戲谷)
The example, settled
Who pays what (base 100, 20 per tai)
- Westbase 100 + 2 tai × 20−140
- South collects+140
Dealer and streak tai count only between the dealer and the player paying. Open this hand in the calculator →
Common questions
中洞: how many tai, and more
How many tai is 中洞 (closed wait)?
1 tai by default. Other values: ZSY (宅神爺) 2.
What does 中洞 not stack with?
全求人, 半求人 replace it.
How do I check whether my hand scores 中洞?
Tap the hand into the tai calculator and it lists every line. Open this page's example in the calculator.