================================
Pairing group 6
================================
[Ch 7.2] Group odd! 6 White e 1 Black
> moving player 16 from [7 W] to [6 W]
[Ch 7.3 7.4]
> moving
> moving
> moving
Colors
player
player
player
not equal 7 White e 1 Black
11 from [6 W] to [6 B]
3 from [6 W] to [6 B]
7 from [6 W] to [6 B]
[Standard case] 4 White e 4 Black
8
- 3
19
- 7
27
- 4
16
- 11
Suppressing rule 2.5 of FDS (4)
The arbiter should always keep in mind that Dubov’s system is a Swiss system that tries to pair
players having the same scores or with the minimum score difference. This means that, although not
clearly stated, in special situations the rule 2.5 should be neglected to avoid new floaters. For
example, in the following situation:
----------------------------------------------Group 1, score = 6.5
----------------------------------------------white | black
ID
ARO
Rat c u |
ID
ARO
Rat c u
--------------------------------------------|
12 2018.4 2095 F
----------------------------------------------Group 2, score = 5.5
----------------------------------------------white | black
ID
ARO
Rat c u |
ID
ARO
Rat c u
--------------------------------------------5 2036.8 2219 F N |
9 1968.6 2136
N
20 2113.1 1889
|
Apparently, only player 20 could face player 12 while players 5 and 9 are blocked in their own
group (u = N) and can’t play with 12. However, 20 faced player 12 so, for necessity, we neglect
rule 2.5 and try to pair 12 first with 5 and then with 9. Let’s examine another case:
----------------------------------------------Group 5, score = 5
----------------------------------------------white | black
ID
ARO
Rat c u |
ID
ARO
Rat c u
--------------------------------------------43 1704.3 1461
|
32 1710.1 1580
29 1710.1 1613
|
34 1708.8 1570
21 1719.4 1691
|
35 1840.3 1565
9 1739.0 2151 F
|
----------------------------------------------Group 6, score = 4.5
----------------------------------------------white | black
ID
ARO
Rat c u |
ID
ARO
Rat c u
--------------------------------------------23 1892.4 1673
|
3 1789.6 2287
|
28 1795.6 1622
4
Vega’s author is indebted to Professor Dubov for the clarification of this important aspect.
60