Sisteme de ranking
1


Sorin Gherman Eduard Hirjoghe Sorin Gherman


Sorin Gherman (6 martie 2003, a reactionat Eduard Hirjoghe) :

O descriere interesanta a unui sistem de handicap si ranking, cum se aplica la cluburi de Go din Tokyo:
http://senseis.xmp.net/?PointRankingSchemeAtTokyoGoClubs

Reproduc ma jos tot textul, nu e foarte lung. (Singurul lucru neclar e ce faci cu un nou venit, cum hotarasti cu cite puncte incepe).

"In my experience quite a few Go clubs in Tokyo use a similar point scoring system to decide komi and handicap. Each person at the club has a card for keeping track of their results. A win adds 1 point to the score on the card while a loss subtracts 1 point. Scores are adjusted after each game. When two players sit down to play they compare their scores and look up the difference in scores on a table printed on the back of the card. For each 1 point difference in scores the komi is changed by 1 point. If the difference is large enough, extra handicap stones are included as well. In the past the most common table was based on 15 points per handicap stone. The table looked something like this:

Point
Handicap   Point Handicap
   Point Handicap  
Diff. Stones Komi Diff. Stones Komi Diff. Stones Komi
0
0
6.5
15
2
6.5
30
3
6.5
1
1
5.5
16
2
5.5
31
3
5.5
2
1
4.5
17
2
4.5
32
3
4.5
3
1
3.5
18
2
3.5
33
3
3.5
4
1
2.5
19
2
2.5
34
3
2.5
5
1
1.5
20
2
1.5
35
3
1.5
6
1
0.5
21
2
0.5
36
3
0.5
7
1
-0.5
22
2
-0.5
37
3
-0.5
8
1
-1.5
23
2
-1.5
38
3
-1.5
9
1
-2.5
24
2
-2.5
39
3
-2.5
10
1
-3.5
25
2
-3.5
40
3
-3.5
11
1
-4.5
26
2
-4.5
41
3
-4.5
12
1
-5.5
27
2
-5.5
42
3
-5.5
13
1
-6.5
28
2
-6.5
43
3
-6.5
14
1
-7.5
29
2
-7.5
44
3
-7.5
  • Point difference 0 = Black player decided by nigiri
  • Handicap 1 = Black (moving first)
  • Negative komi = White gives, Black receives

So when a player with 215 points is matched against a player with 238 they compare cards, calculate the point difference as 23 and check the table. The table shows that the correct handicap is two stones with White giving a 1.5 point komi. If Black wins the first game, Black gains 1 point and White loses 1 point on their cards. As a result, the point difference for the second game falls to 21 points. The table shows that the correct handicap is now 2 stones with black giving 0.5 point komi. And so it goes...

Last year the Takadanobaba Go Club, where I play fairly frequently, shifted to an 18-point scale. At the same time they eliminated fractional komi so that jigo may occur. The komi ranges from Black giving 7 when the point difference is 0 (or 18, 36, 54, etc.) to White giving 10 when the point difference is 17 (or 35, 53, etc.)."


Eduard Hirjoghe (6/7 martie 2003, reactie la Sorin Gherman, a reactionat Sorin Gherman) :

Mi se pare un sistem foarte interesant. Si usor aplicabil.
Pentru un nou venit, ma gindesc ca o varianta ar fi sa i se dea atitea puncte cit media punctelor jucatorilor de acelasi rang cu el care sunt in club. Oricum un punctaj precis nu i se poate da din start. Alte idei ?


Sorin Gherman (6/7 martie 2003, reactie la Eduard Hirhoghe) :

Stiu ca-s cluburi de Go in Tokyo care au sistemul lor propriu de ranguri, adica exista si 11 dan, 12 dan acolo, e greu sa aproximezi un rang din asta cu unul "dinafara" :)


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