Berger arranged it? Starting from 1985, the world volleyball competition adopts the "Berger" arrangement method. Its advantage is that the odd-numbered team can avoid the unreasonable phenomenon that the second-round bye team played against the last round from the fourth round.
Use the "Beagle" arrangement. When arranging, if the queue is even, divide the queue number into two halves (if the queue is odd, the last number is "0"), and the first half starts from 1 and is written on the left from top to bottom; The second half of the number is written on the right from top to bottom, and then the relative numbers are connected by horizontal lines. This is the first round of the game.
In the second round, the number ("0" or the maximum number of yards) in the upper right corner of the first round is moved to the upper left corner, the third round is moved to the upper right corner, and so on. That is, the "0" or the maximum code in the odd wheel is in the upper right corner and in the even wheel is in the upper left corner. As follows (table 1):
Table 1 Method of Match Arrangement for Five Teams
The first, second, third, fourth, fifth, sixth and seventh rounds.
1-0 0-5 2-0 0-6 3-0 0-7 4-0
2-7 6-4 3- 1 7-5 4-2 1-6 5-3
3-6 7-3 4-7 1-4 5- 1 2-5 6-2
4-5 1-2 5-6 2-3 6-7 3-4 7- 1
Whether the team is odd or even, the last round must be "0" or the largest code in the upper right corner, and "1" in the lower right corner.
Depending on the divisor of the participating teams, when "1" moves one position counterclockwise, it should move "0" or the position before "1" according to the specified interval number (see Table 2).
Table 2 Interval shift
Number and interval of teams
Less than 4 teams 0
Team 5 ~ Team 6 1
7~8 team 2
9~ 10 team 3
1 1~ 12 Group 4
When "1" moves at intervals, when it encounters "0" or the maximum number of symbols, it should be crossed first without interval calculation.
Generally speaking, in domestic competitions, the number of names obtained by each team in the previous game is used as the code, such as "1" for 1, "2" for the second place, and so on. Most world competitions use the host code "1", and finally 1 is named "2", and so on. Some competitions also use lottery to determine the code.
After arranging the table to keep the game in order, before drawing lots, it is necessary to determine whether to play on the left side of the round line or on the right side of the round line.