Symbol calculation of Japanese mahjong

In some cases, the number of symbols also affects the number of points. Method for calculating the number of symbols:

A. basic characters

Generally speaking, as long as you draw a card, you can own it (like gambling).

If the door is clean, the cards are combined in the form of food and water. In this case, the bottom symbol is 30.

In other cases, the base character is 20.

B. Touch yourself and play cards

In the way of self-touch and playing cards, "self-touch" is counted as two symbols (in some rules, "self-touch" is not counted as flowering on the ridge).

C. Types of draw cards

1. One way (2 symbols)

When you listen to the cards, you have a separate card waiting to receive the cards (you don't have to listen to only one kind, such as 56780, 50,000, 80,000, which can also be counted as a solo ride).

2. Embedding (2 characters)

When listening to cards, there are two cards with flush color difference of 2 points waiting to draw a straight (for example, 30,000, 50,000, 40,000 in hand, or 79,80 in hand).

3. Edge Zhang (two characters)

When drawing cards, there are two cards of the same suit with the difference of points of 1 waiting for a straight, but one of the two cards is 1 or 9 (in this way, only one card can be made into a straight. For example, if you have 10,000 or 20,000 in your hand, you can listen to 30,000, or you have eight, nine or seven pieces in your hand.

4. Two sides (0 characters)

When drawing cards, there are two cards of the same suit with the difference of points of 1 waiting for a straight, but none of the two cards or nine cards (in this way, two cards can be made into a straight. For example, there are 40,000 to 50,000 in hand, 30,000 to 60,000 in hand, or seven or eight cakes in hand, and six or nine cakes in hand).

5. Double-click (0 symbol)

When you draw cards, you have two pairs in your hand, waiting for one pair to be engraved (for example, you have a pair of nines and a pair of southerly winds in your hand, so you can listen to nines and southerly winds).

(Note: It can be written as "single riding, embedding and lateral extension", but not as "double-sided and double-touching". )

D. the type of cards to be dealt

1. Count cards

Any 10,000 coins, cakes and stripes count as 0 symbols.

2. Wind card

Since the wind card as a general card, 2 words.

The field wind card is used as a general card and has two symbols.

The wind card is used as a general card (the wind card is the same as the field wind card. For example, in Dongchang, the owner uses Dongfeng as a general), four symbols (some rules count as two symbols).

The passenger wind card (which is neither its own wind nor the wind of the field) is used as a general card, and the symbol is 0.

3. ternary card

One of the cards "China, Serve and White" is an ordinary card with two symbols.

(Note: it can be recorded as "service card counts as 2 symbols, wind counts as 4 symbols, and others count". )

E. face shape

1. Straight

Any straight will count as 0.

2. lettering (when using the operator, the open bar cannot be counted as open engraving, and the dark bar cannot be counted as dark engraving). In bright and dark stripes, the cards are 2, 4, 8, 16, and the nine cards are 4, 8, 16, 32. If there are multiple groups of carvings, they are calculated separately.

F. Special case

If one of the following situations occurs, the following conclusions must be directly used when calculating the number of operators, and the number of operators will not be calculated according to the above method A ~ E..

1. Special type (25 symbols)

And the player's card type does not meet the "one deck plus four sets of faces". Example: seven pairs, Slam Slam (described later), peerless national, thirteen don't match. In fact, only 7 pairs of 25 symbols are meaningful, and other special cards are at least slam or even full. At this time, the number of symbols is useless (see the section "Calculation of Points" for details).

If seven pairs only count 1 turn, the number of symbols is 50.

After making a special card type, you can't add any other symbols (including basic symbols) to the operator.

2. Peace and self-touch (20 symbols)

When calculating the flip, peace and self-touch in front of the door appear at the same time, so the number of symbols is only 20 symbols at the bottom.

In fact, this situation is "sacrificing two symbols of self-touch for a peaceful 1 flip".

In addition, in a few rules, it is not allowed to "sacrifice two symbols of self-touch for flat 1 flip". In this case, the plane self-tracing instrument has 30 symbols (bottom symbol 20+ self-tracing symbol 2 =22 symbols, which is 30 symbols after rounding to ten digits), but the plane 1 inversion cannot be added when calculating the inversion.

3. Non-front desk cleaning and food coordination (30 characters, 20 characters for some rules)

The card type meets the requirements of "peace" (referring to the "peace" in the above flop calculation), but there is a phenomenon of eating cards (that is, the door is unclear, so it is called "peace shape" and cannot be counted as peace 1 flop), and the cards are played in a peaceful way. In this case, 10 symbols are usually added to the base symbol 20 to reach 30 symbols (some rules are not added, so only 20 symbols of the base symbol remain).

Symbolic final result

If the number of operators is calculated according to the algorithm of items A~E, the number of operators in various cases will be rounded to ten digits after accumulation (for example, 32 operators will eventually calculate 40 operators, 64 operators will calculate 70 operators, and 30 operators will calculate 30 operators).

If there is a special case mentioned in item F, just apply the conclusion directly, and don't carry it to ten digits (such as 25 symbols or 25 symbols).