Chinese Official Mahjong

Chinese Official Mahjong · 8 pt

Last Tile Claim in Chinese Official Mahjong (MCR): Points, Examples and the Last Tile Draw Difference

Last Tile Claim example: 1-2-3 characters, 4-5-6 dots, 6-7-8 bamboo, 2-3-4 bamboo and a pair of 9 characters, won on the last discard, a 4 bamboo

In Chinese Official Mahjong, Last Tile Claim (海底捞月) is worth 8 points: once the last tile of the wall has been drawn, the player who drew it discards — the last discard of the hand — and that tile completes your hand. That alone reaches the 8-point minimum.

The wall is empty, the last player discards a 4 bamboo, and you win on it
On this page
  1. The conditions
  2. Last Tile Claim vs Last Tile Draw
  3. What it combines with
  4. Scoring examples
  5. How often it happens
  6. Playing the last few tiles
  7. In other mahjong styles
  8. FAQ

The conditions

Last Tile Claim vs Last Tile Draw

The MCR names are the opposite of the Taiwanese and Sichuan ones:

SituationChinese Official (MCR)Taiwanese / Sichuan mahjong
Self-draw the last wall tile妙手回春 Last Tile Draw, 8 points海底撈月
Win on the last discard海底捞月 Last Tile Claim, 8 points河底撈魚 (Taiwan), 海底炮 (Sichuan)

What it combines with

Last Tile Claim has no "not counted" entries in the fan table, so everything else stacks: Concealed Hand, All Chows, even Last Tile if the last discard happens to be the fourth of its kind. Like Last Tile Draw and Robbing the Kong it is worth 8 on its own, so it can turn a discard win of only one or two points — normally illegal — into a legal win.

Scoring examples

The same tiles twice, scored live by this site's scoring engine:

Last Tile Claim8
All Chows2
Total10 pt

Reaches the 8-point minimum — a legal win.

Not counted (implied by a bigger fan): No Honors

Two chows claimed, All Chows is only 2 points; the last discard is your 4 bamboo: Last Tile Claim plus All Chows — enough.
All Chows2
Total2 pt

Below 8 points — not allowed to win.

Not counted (implied by a bigger fan): No Honors

The same hand winning on an ordinary 4 bamboo discard: only All Chows, 2 points — not a legal win.

How often it happens

Nobody may win before the wall runs out, and the very last discard has to be your tile. In 4,000 computer games on this site there were 3,849 wins, 11 of them Last Tile Claim (0.29%), against 0.13% for Last Tile Draw. In principle Last Tile Claim has more chances: only one player draws the last tile, but three players can win on the last discard. Both counts are small, so read them as rough indications only.

Playing the last few tiles

In other mahjong styles

Winning on the last discard elsewhere:

FAQ

How many points is Last Tile Claim?

8 points in Chinese Official Mahjong — enough for the minimum on its own.

Is MCR's 海底捞月 a self-draw?

No. In MCR 海底捞月 is winning on the last discard; self-drawing the last tile is 妙手回春 (Last Tile Draw), also 8 points.

Can the last discard be punged?

Not on this site: the wall is empty, so that tile can only be claimed to win — no chow, pung or kong.

Try it at the table

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