How to calculate IMP in Bridge
First of all, there is no group game or non group game in bridge. There are only double play, double play and single play. In addition, imp is only calculated in double play and VP is calculated according to imp. Imp is calculated according to the difference of each deck of cards between the two teams in the plex competition
imp is the abbreviation of international competition points, which is a common scoring method of bridge competition. After playing a deck of cards, according to the bridge scoring method, first according to the basic points, bonus points and penalty points calculation rules, calculate the score of both sides
it can be seen that the difference between the scores calculated in this way can be very large. In order not to lose or win a match because of the big loss or big win of a deck of cards, which makes the game lose suspense prematurely, each deck of cards should be converted into international points (IMP) after calculating points
extended data:
another communication mode is broadcast communication mode, which is mainly used in LAN. The IMP in LAN is simplified to a microprocessor chip, and each host or workstation is equipped with an imp
in the broadcast communication system, the only channel is shared by all hosts, the information sent by any host can be received by all hosts, and the destination address in the packet indicates the specific receiving station, which is called multi-target transmission. When necessary, a special destination address can be used to indicate that the packet is sent to the specified host or workstation, which is called single destination sending
Another form ofimp is as a pure software server, which provides the internal system with the access interface of the external system, and can solve the problem of communication protocol differences between different systems. When an internal system needs to interface with an external system, it only needs to load the interface adaptation software responsible for the corresponding protocol conversion processing
reward score: 0 | solution time: June 23, 2006 23:00 | questioner: Magic millet
best answer
first of all, bridge has no team competition or non team competition, only compound competition (team competition), double competition and single competition
in addition, imp is calculated only in double play and VP is calculated according to imp
imp is calculated according to the difference of each deck of cards between the two teams in the plex competition, There is a comparison table of difference and imp:
difference imp
0-10 is ignored
20-40 1
50-80 2
90-120 3
130-160 4
170-210 5
220-260 6
270-310 7
320-360 8
370-420 9
430-490 10
500-590 11
< br 600-720 12
730-890 13
...... omit
if it's a four person game, sometimes the above-mentioned imp is used to calculate the victory or defeat, but because it's not a plex game, it's impossible to compare the two sets of cards, so the calculation method of point force compensation is adopted:
for example, the first set of cards has no game, the north and South hold 26 points, and make 3nT score 400 points, which is equivalent to 9 points of imp, And the north and south big card point force is 26 points, which is 20.6 points higher than the average point force. 3 points can be obtained by subtracting 6 points from 9 points, which is the final imp score of this pair of cards. This scoring method is often used when there are only four players.
in addition, imp is calculated only in double play and VP is calculated according to imp
imp is calculated according to the difference of each deck of cards between the two teams in the plex competition, There is a comparison table of difference and imp:
difference imp
0-10 is ignored
20-40 1
50-80 2
90-120 3
130-160 4
170-210 5
220-260 6
270-310 7
320-360 8
370-420 9
430-490 10
500-590 11
< br 600-720 12
730-890 13
...... omit
if it's a four person game, sometimes the above-mentioned imp is used to calculate the victory or defeat, but because it's not a plex game, it's impossible to compare the two sets of cards, so the calculation method of point force compensation is adopted:
for example, the first set of cards has no game, the north and South hold 26 points, and make 3nT score 400 points, which is equivalent to 9 points of imp, And the north and south big card point force is 26 points, which is 20.6 points higher than the average point force. 3 points can be obtained by subtracting 6 points from 9 points, which is the final imp score of this pair of cards. This scoring method is often used when there are only four players.
This is the table of composite imp (the difference between the results of the two rooms in team style, if it is 10 points, it is 0 IMP), and there is no negative value. 3 is made into 4, which is 30x4 + 50 = 170, equivalent to 5 imp
after playing a deck of cards, according to the scoring method of bridge, first calculate the score of both sides according to the calculation rules of basic score, bonus score and penalty score
it can be seen that the difference between the scores calculated in this way can be very large. In order not to lose or win a match because of the big loss or big win of a deck of cards, which makes the game lose suspense prematurely, each deck of cards should be converted into international points (IMP) after calculating points
in fact, it is similar to logarithmic compression to rece the influence of winning or losing each deck on the whole game to an acceptable level. The following is the conversion table of scores and international scores
score international score international score international score
0-100 370-420 9 1750-1990 18
20-40 1 430-490 10 2000-2240 19
50-80 2 500-590 11 2250-2490 20
90-120 3 600-740 12 2500-2990 21
130-160 4 740-890 13 3000-3490 22
170-210 5 900-1090 14 3500-3990 23
220-260 6 1100-1290 15 4000 above 24
270-310 7 1300-1490 16
320-360 8 1500-1740 17
VP is obtained by imp conversion, and imp will be settled after each game. After the final game, both sides of the game will have accumulated imp, and the difference will be automatically included in "VP". The conversion table between IMP and VP is attached:
1. Bridge team style matches calculate points according to VP
in the game between the two teams, after each deck of cards is played, small points are calculated in the open and closed rooms and converted into imp. after each game, the corresponding VP score is calculated according to the accumulated points of IMP, and finally the position is determined according to the accumulated points of VP
2. As for the opponent in each match, the method of determination is different according to the different form of the match
if it is a full round robin, all opponents will meet once. If it is a group round robin, the opponents in the group will meet, and then the group position will be calculated, and the top several players will enter the next round of competition
if it is a Swiss transfer match, except that the first match is artificially arranged, the subsequent matches will be match between the winning team and the winning team, and between the negative team and the negative team, according to the principle of similar points. After a certain round, the position will be calculated according to the VP points
2, card type points (calculated when playing suit contract in calling): absence = 3, single card = 2, double card = 1, but if this suit belongs to the suit whose partner has shown card force, card type points cannot be calculated