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[ แสดงกระทู้ท้งหมด]
WORLDOTHELLOCHAMPIONSHIPS 2005
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ความคิดเห็นที่ : 5
The Mixed Brightwell System (MBS)
1. Overview: The Mixed Brightwell System (MBS) is a method of breaking ties in Othello tournaments
run with the Swiss system. It is also applicable to Round Robin tournaments, where it is equivalent
to disc-count. Essentially this system is a combination of Strength-of-Opposition and disc-count.
2. The Constant C: MBS depends on a constant C, which is a weighting for the relative importance of
Strength-of-Opposition and disc-count. For the World Championships, assuming that they are run
either as a Round Robin or as a 13 rounds Swiss system, C will be set equal to 6.
3. The Brightwell Quotient (BQ): After the end of the tournament, the tournament officials will
evaluate, for each player involved in a tie, the BQ. This is calculated as follows:
a) If any of the player's opponents have withdrawn in the course of the tournament, ignore any such
games for the moment. Also, if a player has been paired against "Bye", leave out such a
game.
b) Calculate the total number of discs scored by the player in all games not covered by a) and add C
times the sum of points scored in the tournament by all of the players opponents, except those who
have withdrawn.
c) For each game against an opponent who has withdrawn, and each bye received, add 32 plus (C times
the player's own tournament score) to the result calculated in b). The number resulting is the
player's BQ.
4. Resolving Ties: If two players have the same number of points in the tournament, the tie shall be
resolved in favour of the player with the higher BQ. If two players have the same number of points
and the same BQ, the tie shall be resolved favour of the player with the better disc count. In case
of further tie, it shall be resolved by the flip of an Othello disc. |
โดย : zen_ar218     [ 12/11/2005, 11:08:05 ] |
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