Takagawa beats Go Seigen by a rule.
White: Go-Seigen, 9-dan
Black: Honinbo Shukaku[JH1], 8-dan
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Fig. 2 ( 51-98)
If White 1 in Dia. 10 pushing out to cut Black at '3', through '10', Black will take two White stones while White has thickness outside. Go Seigen did not like the sequence.
4 ko at ‘a’ Dia. 12 : then the sequence through 5 can be thought of; Takagawa says this was better. Go-Seigen, on the other hand, would win the ko by any means.
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Fig. 2. (51-98) Black 51: This was what Black had been thinking about; without this Black cannot have hope to go on. Black 57: Seems to be better to play Black 1 in Dia. 8, securing the corner but through 8, White prepares to press Black by White 'a' this is preferable to White. Black 59: Prepares to live in the corner : Dia. 9: Black easily lives Black 61: Better than to live in the corner, because Black wants to have sente and he does not like to give White an easy time. White 62: See Dia. 10. White 72: Cannot be omitted because in Dia. 11, Black 1 ... Black 7 will make the White stones float in the Black sea. Black 73: Might be better to take ko as in Dia. 12, then the sequence through 5 can be thought of; Takagawa says this was better. Go-Seigen, on the other hand, would win the ko by any means. White 74: Vigorous move. White does not want to continue ko because, if so, Black will play '98' and White will suffer a defective point at 'a'. Black 79: A bad kodate but in Dia. 13 when Black 1 instead, the sequence through 18 proves to be Black’s failure.
Dia. 14 Dia. 14: If Black 9 pushes out this side, the Black group will be safe, but White 10 compels Black to answer, so White will have sente that will give him a lead.
Dia. 15
Dia. 15: If Black. merely plays kaketsugi at Black 1, Go-Seigen says the sequence through 4 will be played.
Dia. 16
One of other alternatives of Black 79 is to play Black 1 in Dia. 16. When White takes one Black stone by White 2, then Black 3 will separate the White stone and White 4 take the Black stones. But the next Black move '5' is very good. It was very difficult to decide where the best play was.
Dia. 17
Black 83: If Black 1 in Dia. 17 instead, then through '5' is a possibility. Then White 6, seeking a chance to play 'a'. |
