Set goals and move on

 

Answer

Commentary

There are 3 pairs ＋ 1 triplet in this hand.

You never exclude 7 pairs and All triplets, finally 4 concealed triplets.

SO you must not discard 4m, and east.

East is only one tile so far but it is important because you are east seat.

If you draw one more wast, your hand get more 2 roles so called double-east.

And win by All triplets＋Double east, you get 8000 points.

4p and 5s have possibility to triple sequences, 3 4 5 or 4 5 6.

2s is most useless.

If you draw 3s in early round, you can't get any role, even flat hand.

If you draw

3m (Dora) 　　　→  Riichi ＋Dora

East          　　　→  All triplet

One more pair　  → 7 pairs

3 4 5p or s            →Triple sequences

 

leaving 2s is most halfway.

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This is a fried rice of "Ippudo"

I love pork soup Ramen very very much, as a matter of fact, Fried rice of Ippudo is really delicious rather than Ramen.

Hot TAKANA (veritable in the small dish)  is the best marriage.

Retrogress to one before for ready

 

Answer

Commentary

In 11 rounds, Kanchan (gut-shot) win rate is only 34% and deal in rate is 15%.

→refference 

You have enough point, and the game is close to end.

In this case, you had better not to call for Riichi waiting bad form and low score.

If you win by  this hand, you got only 2600 pt.

Further more, when the other player win by self draw, you have to pay more 1000pt (Riich fee).

So, The risk/reward is not balanced in case you call for Riichi.

You had better to look to the final form that can win concealed or can win even if you call for pong or chow.

If you discard 7p and retrogress one before for ready,  you can win in concealed when you draw 2m, 3m, 6,m, and 4p.

Even if not so, you can call for chow 2m, 3m, 6m. 

Especially, if you can call for 2m, you can wait by Ryan-men. 

 

Indeed, this hand win by calling for chow 2m, and self-draw 3m.

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This pasta is "Roma taste spaghetti" of Roma station.

This restaurant has over 50 years of history in this place.

This pasta is one of the Yokohama's signature dish.

You gotta try it once.

Look to a good form of one before for ready

 

Answer

Commentary

Look to a good form of one before for ready

At a glance,  it is no risk to discard 2m or 4s fixing Ryan-men.

Indeed, discard 6p lose waiting for 4 tiles of 7p.

And discarding 2m or 4s lose 2tiles of each ＋2 tiles of 9p.

The difference is that  this hand progress.

When you have Ryanmen × 5 parts , We need to get rid of one of them.

If it comes to that way, you should decide 4 Ryanmen first.

How do you do ??

And if you chose  either  Ryanmen,  you have to leave useless tile.

How about this.

you discard 4s, and make perfect one before for ready.

There is no useless tile in this hand.

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Takoyaki is one of my favorite food.

Do you know ??

Calculating Expected Value

 

Answer

Calculating Expected Value

Expected value is calculated by score × winning probability.

This hand, discarding 2m is fix "Frat hand"  " All simples" "Triple sequences" but double sided waiting.

Discarding 5m is fix "flat hand" only, but triple sided waiting.

Which is the better option ??  

The winning probability of double sided wait (Ryanmen) is about 70%.

Simplified expected value  is about 70% × 8000 =5600

And that of triple sided wait is about 80%.

Simplified expected value  is about 80% × （1000×1/3（1m)＋2000×2/3（4 7m))=1500

The principle is to focus the score

Basically, it is too difficult to double the winning probability.

So if you fix rising one more the role (Yaku), you should fix the role which make your hand's score 

double.

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I tried pasta in Pizza KOZOU where I have often eaten Pizza.

Vongore Bianco is my favorite taste.

Very tasty but I prefer Pizza in this restaurant.

Care for Ryanmen-Kanchan

 

Answer

Safest

Most dangerous

Commentary

Care for Ryanmen-Kanchan

At a first glance, 8m seems relatively safety.

But n case of declaring 2, 8 is dangerous.

Do you remember Ryanmen kanchan??

It is common to leave 2 till ready hand in Ryanmen-Kanchan.

And this hand, there is one more notable point one before declaring round.

North is Obviously "safety tile".

If you have Ryanmen and safty tile like below, you discard north ?? 

So 4m is relatively safe.

Of corse, 1-4 is dangerous, but 1 was discarded.

In this point of view, 3m is more dangerous than 4m.

But this hand, 1m was discarded in 4th round.

It is too early, to discard 1 from 1 1 2 2.

This hand has called for Riich by this hand.

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A spider has moved to the window of my house.

But I have never seen the insect in his nest.

In the first place, is there the nest ......??

I am very worry about his starving.......

Statistics of mahjong

 

Answer

Commentary

"Perfect" one before for ready

The form composed by complex serial pair ＋Ryanmen is called  "perfect one before for ready"

In addition to Ryanmen, there is acceptance to make triplet.

There is 4 tiles more than Ryanmen-Ryanmen one before for ready.

But recently, it is calculated that this advantage is too little.    (reffernce ; this book)

Especially, the part of complex serial pair is 4 5 6 like this case exceed the risk of leaving the tile.

If other player call for Riichi, you have to discard 6 (in this case) to the Riich in order to call Riich.

Ryanmen-Ryanmen wait for 16 tiles.

And this perfect one before for ready wait for 20 tiles.

In 16/20 case, Ryanmen is complete first.

And statistics reveal the risk exceed to the merit of leaving dangerous tile till ready hand.

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My pretty chihuahua found very Big warm.

She really interested in, and smell it , and touch.

Be a nice butterfly.

The timing of discarding the safety tile

 

Answer

Commentary

The timing of discarding the safety tile

Why this player keep North that had already been discarded at 2 round till ready hand.

This is "safety tile"  in case other player call for Riichi.

Safety tile reduce acceptance of hand, so it must not deal in by the tile.

Choose the most safety tile, for example, the last tile of honors tile.

And the declaring tile is safety tile, the hand is likely to wait by Ryanmen.

If you have Ryan-kan and Ryanmen like

Do you discard 6s in this hand?? 

You can think "Declaring with safety tile means, the hand is Ryamnen"

This hand is below

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Today's Pizza 

LA FIGLIA DEL PRESIDENTE

This is very good.

This hard and harf ; margherita and quattro formaggi isn't on menu.

I asked to make, and the stuff readily agreed.

So happy.