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Jubango
    Keywords: Rules, Culture & History, Go term

A jubango is a contest between two players consisting of ten games. Typically the games in these matches were not played with a komi, but according to a system that changes the handicap in function of who wins the previous games.

BlueWyvern: Does anyone know how exactly handicaps are shifted?

The master of jubango is undoubtedly Go Seigen. In part because of his somewhat unique position in the Nihon Ki-in, newspaper organised several matches between Go and the other top players of the mid 1930s to 1950s. Here is Go's record in jubango go (from Andrew Grant's pages, which are no longer available):

1. 1933-34 - Kitani Minoru

  match abandoned at 3-3

2. 1939-40 - Kitani Minoru

  Go won 6-4

3. 1941-42 - Karigane Junichi

  match abandoned with Go leading 4-1

4. 1942-44 - Fujisawa Kuranosuke

  Fujisawa won 6-4

5. 1946-48 - Hashimoto Utaro

  Go won 6-3 with 1 jigo

6. 1948-49 - Iwamoto Kaoru

  Go won 7-2 with 1 jigo

7. 1949-50

  Go won 8-1 with 1 jigo against a team of players.
  The loss was against Kubouchi Shuchi, the jigo against Sumino Takeshi.

8. 1950-51 - Hashimoto Utaro

  Go won 5-3 with 2 jigo

9. 1951-52 - Fujisawa Kuranosuke

  Go won 7-2 with 1 jigo

10. 1952-53 - Fujisawa Kuranosuke

  match abandoned with Go leading 5-1

11. 1953-54 - Sakata Eio

  match abandoned with Go leading 6-2

12. 1955-56 - Takagawa Kaku

  Go won 8-2

--Stefan

The handicap system used for these games was called uchikomi. It is based on the ratio of playing Black to playing White in a series of games.

For a more indepth look into this kind of game, I can recommend this excellent [ext] article by John Fairbairn at mindzine

--Herman



This is a copy of the living page "Jubango" at Sensei's Library.
(OC) 2003 the Authors, published under the OpenContent License V1.0.