Triple ko, quadruple ko, ...Krama wrote:I know what jigo is, but what on earth is no result?
Cho Chikun Becomes First Japanese Pro to Reach 1500 Wins
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Cassandra
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Re: Cho Chikun Becomes First Japanese Pro to Reach 1500 Wins
The really most difficult Go problem ever: https://igohatsuyoron120.de/index.htm
Igo Hatsuyōron #120 (really solved by KataGo)
Igo Hatsuyōron #120 (really solved by KataGo)
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hyperpape
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Re: Cho Chikun Becomes First Japanese Pro to Reach 1500 Wins
Cho also had a game annulled because the referee incorrectly told him it was his turn to take a ko: http://senseis.xmp.net/?NoResult.
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emeraldemon
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Re: Cho Chikun Becomes First Japanese Pro to Reach 1500 Wins
So I couldn't resist checking goratings.org to see what it thinks of Cho Chikun.
It's interesting to me how the elo rating changes link up to titles.
Otake won the Gosei away from Cho Chikun in August 1980, But Cho fought back, taking the Meijin from Otake that winter.
It is during this Meijin match, specifically in [url=http://www.go4go.net/go/games/sgfview/10888]game 5, that Cho Chikun takes #1 in the world away from Otake Hideo according to goratings.
(He plays his first two moves on the 3-3 points this game, and wins with a game-ending two-step ko). Game 4 of that series was the "no result" due to the game recorder making a mistake.
It's interesting to me how the elo rating changes link up to titles.
Otake won the Gosei away from Cho Chikun in August 1980, But Cho fought back, taking the Meijin from Otake that winter.
It is during this Meijin match, specifically in [url=http://www.go4go.net/go/games/sgfview/10888]game 5, that Cho Chikun takes #1 in the world away from Otake Hideo according to goratings.
(He plays his first two moves on the 3-3 points this game, and wins with a game-ending two-step ko). Game 4 of that series was the "no result" due to the game recorder making a mistake.