### Analysis of a mahjong hand

Posted:

**Wed Oct 11, 2017 7:38 pm**Had this multiple wait hand recently and although I didn't see all the possibilities during the game, it looked interesting enough to analyze afterwards. Game was East round only.

It was time to make a discard and call riichi

There were 2 choices. The or the .

Discarding the 6bam would leave me with a wait of .

Discarding the 4dot would leave me with a wait of .

Coincidentally, if all are available, both have a 13 tile wait.

The all yield riichi/tanyao while the adds San Ankou.

The also yield riichi/tanyao while the also add San Ankou. The loses tanyao, obviously.

Since the 1st situation has 3 tiles (4dots) that yield San Ankou and the 2nd situation has 6 tiles (6bams, 9bams) that yield San Ankou, I would think that would be the way to go.

BUT WHAT IF ALL TILES ARE NOT AVAILABLE.

Suppose the 3 tile San Ankou had 12 tiles available for the win while the 6 tile San Ankou had only 8 tiles available for the win. What then?

I assume the answer will be that it depends on how badly you need the points.

With a nice lead, go for the 12 tile available win.

If playing serious catch-up, go for the 6 out of 8 San Ankou win.

But what if the game is close and you are right in the thick of It?

And what if you are sitting EAST for a possible dealer mangan.

How much risk is getting that San Ankou worth for those extra points?

Any and all comments are welcome.

It was time to make a discard and call riichi

There were 2 choices. The or the .

Discarding the 6bam would leave me with a wait of .

Discarding the 4dot would leave me with a wait of .

Coincidentally, if all are available, both have a 13 tile wait.

The all yield riichi/tanyao while the adds San Ankou.

The also yield riichi/tanyao while the also add San Ankou. The loses tanyao, obviously.

Since the 1st situation has 3 tiles (4dots) that yield San Ankou and the 2nd situation has 6 tiles (6bams, 9bams) that yield San Ankou, I would think that would be the way to go.

BUT WHAT IF ALL TILES ARE NOT AVAILABLE.

Suppose the 3 tile San Ankou had 12 tiles available for the win while the 6 tile San Ankou had only 8 tiles available for the win. What then?

I assume the answer will be that it depends on how badly you need the points.

With a nice lead, go for the 12 tile available win.

If playing serious catch-up, go for the 6 out of 8 San Ankou win.

But what if the game is close and you are right in the thick of It?

And what if you are sitting EAST for a possible dealer mangan.

How much risk is getting that San Ankou worth for those extra points?

Any and all comments are welcome.