Life In 19x19 :: Gomoto's Joseki Studies #2

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Gomoto's Joseki Studies #2 http://lifein19x19.com/viewtopic.php?f=15&t=15548	Page 1 of 1

Author:	Gomoto [ Thu Mar 29, 2018 4:48 am ]
Post subject:	Gomoto's Joseki Studies #2
What is your next move? Click Here To Show Diagram Code `[go]$$B $$ +-------------------- $$ \| . . . . . . . . . . $$ \| . . . . . . . . . . $$ \| . . . . . X . . . . $$ \| . . . O . . . . . , $$ \| . . . . . . . . . . $$ \| . . 1 2 . . . . . . $$ \| . . . 3 . . . . . . $$ \| . . . . . . . . . . $$ \| . . . . . . . . . . $$ \| . . . , . . . . . ,[/go]`

Author:	Gomoto [ Thu Mar 29, 2018 4:49 am ]
Post subject:	Re: Gomoto's Joseki Studies #2
Let us explore a somewhat underrated line of play: Click Here To Show Diagram Code `[go]$$B $$ +-------------------- $$ \| . . . . . . . . . . $$ \| . . . . . . . . . . $$ \| . . . . . X . . . . $$ \| . . . O . . . . . , $$ \| . . 4 . . . . . . . $$ \| . . 1 2 . . . . . . $$ \| . . . 3 . . . . . . $$ \| . . . . . . . . . . $$ \| . . . . . . . . . . $$ \| . . . , . . . . . ,[/go]` (Move 4 is recommended by John Frum )

Author:	Gomoto [ Thu Mar 29, 2018 4:51 am ]
Post subject:	Re: Gomoto's Joseki Studies #2
The Joseki continues ... Click Here To Show Diagram Code `[go]$$B $$ +-------------------- $$ \| . . . . . . . . . . $$ \| . . . . . . . . . . $$ \| . . . . . X . . . . $$ \| . . . O . . . . . , $$ \| . . 4 6 . . . . . . $$ \| . . 1 2 5 . . . . . $$ \| . . . 3 . . . . . . $$ \| . . . . . . . . . . $$ \| . . . . . . . . . . $$ \| . . . , . . . . . ,[/go]`

Author:	Gomoto [ Thu Mar 29, 2018 4:56 am ]
Post subject:	Re: Gomoto's Joseki Studies #2
Variation 1: Click Here To Show Diagram Code `[go]$$B $$ +-------------------- $$ \| . . . . . . . . . . $$ \| . . . . . . . . . . $$ \| . . . . . X . . . . $$ \| . . . O . . . . . , $$ \| . . 4 6 . 7 . . . . $$ \| . . 1 2 5 . . . . . $$ \| . . 8 3 . . . . . . $$ \| . . . 9 . . . . . . $$ \| . . . . . . . . . . $$ \| . . . , . . . . . ,[/go]`

Author:	Gomoto [ Thu Mar 29, 2018 4:58 am ]
Post subject:	Re: Gomoto's Joseki Studies #2
Whites strongest move is now probably tenuki. (a and b beeing the alternative moves) Click Here To Show Diagram Code `[go]$$B $$ +-------------------- $$ \| . . . . . . . . . . $$ \| . . . . . . . . . . $$ \| . . . . b X . . . . $$ \| . . . O . . . . . , $$ \| . . 4 6 . 7 . . . . $$ \| . a 1 2 5 . . . . . $$ \| . . 8 3 . . . . . . $$ \| . . . 9 . . . . . . $$ \| . . . . . . . . . . $$ \| . . . , . . . . . ,[/go]`

Author: Gomoto [ Thu Mar 29, 2018 5:03 am ]

Post subject: Re: Gomoto's Joseki Studies #2

The shown variation is played seldom by pro players, but highly rated by Prince Phillip. Oh sorry, I wanted to say Leela Zero.

Here are some examples from pro games:

Yang Jaeho 7p - Oh Kyuchul 4p, W+8.5 (Komi 5.5)
36th Korean Kuksu, winner section round 2, 1992-03-25

Click Here To Show Diagram Code: [go]$$W $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . 9 . . . . . | $$ | . . . O . . . . . O . . . . . X . . . | $$ | . . 3 5 . 6 . . . . . . . . . . . . . | $$ | . . X 1 4 . . . . . . . . . . . . . . | $$ | . . 7 2 . . . . . . . . . . . . . . . | $$ | . . . 8 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . X . O . . . . . . . . . | $$ | . . . . . . . . . . . . O . . . . . . | $$ | . . O . . . . X . O . . . . . . . . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . . O X . . . X . O . . X . . X . . . | $$ | . . . O X . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Abe Yoshiki 1p - Sato Yuta 1p, B+Resign (Komi 6.5)
43rd Japanese Gosei, preliminary, 2017-04-05

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . O X O O . . . . X O X . . . . | $$ | . . X O . O X . . , . O O X X X . . . | $$ | . . . . . O . . . . . . . O . . . . . | $$ | . . . X . . . . . . . . . . O . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . O . X . | $$ | . . . . O . . . . . . . . . . . . . . | $$ | . . X O . . O . . , . . O . O O X . . | $$ | . . X . . X . . . . . . . O X X X . . | $$ | . . . . 1 . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Author:	Gomoto [ Thu Mar 29, 2018 5:38 am ]
Post subject:	Re: Gomoto's Joseki Studies #2
What is blacks next local move after tenuki? Click Here To Show Diagram Code `[go]$$B $$ +-------------------- $$ \| . . . . . . . . . . $$ \| . . . b . . . . . . $$ \| . . . . . X . . . . $$ \| . . . O . . . . . , $$ \| . . O O . X . . . . $$ \| . a X O X . . . . . $$ \| . . O X . . . . . . $$ \| . . . X . . . . . . $$ \| . . . . . . . . . . $$ \| . . . , . . . . . ,[/go]`

Author:	Gomoto [ Thu Mar 29, 2018 5:42 am ]
Post subject:	Re: Gomoto's Joseki Studies #2
a is a mistake for black and not to be feared. Click Here To Show Diagram Code `[go]$$W $$ +-------------------- $$ \| . . . . . . . . . . $$ \| . . . . . . . . . . $$ \| . . . . . X . . . . $$ \| . . . O . . . . . , $$ \| . . O O . X . . . . $$ \| . B X O X . . . . . $$ \| . . O X . . . . . . $$ \| . 1 . X . . . . . . $$ \| . . . . . . . . . . $$ \| . . . , . . . . . ,[/go]`

Author:	Gomoto [ Thu Mar 29, 2018 5:43 am ]
Post subject:	Re: Gomoto's Joseki Studies #2
Therefore b is the correct follow up for black. (It is not sente.) Click Here To Show Diagram Code `[go]$$B $$ +-------------------- $$ \| . . . . . . . . . . $$ \| . . . B . . . . . . $$ \| . . . . . X . . . . $$ \| . . . O . . . . . , $$ \| . . O O . X . . . . $$ \| . . X O X . . . . . $$ \| . . O X . . . . . . $$ \| . . . X . . . . . . $$ \| . . . . . . . . . . $$ \| . . . , . . . . . ,[/go]`

Author:	Gomoto [ Thu Mar 29, 2018 5:50 am ]
Post subject:	Re: Gomoto's Joseki Studies #2
White 2 is the answer to blacks strongest attack. Click Here To Show Diagram Code `[go]$$B $$ +-------------------- $$ \| . . . . . . . . . . $$ \| . . . B . . . . . . $$ \| . . . . . X . . . . $$ \| . . . O . . . . . , $$ \| . . O O . X . . . . $$ \| . 2 . O X . . . . . $$ \| . . O X . . . . . . $$ \| . 1 . X . . . . . . $$ \| . . . . . . . . . . $$ \| . . . , . . . . . ,[/go]`

Author:	Gomoto [ Wed Apr 04, 2018 2:19 am ]
Post subject:	Re: Gomoto's Joseki Studies #2
Variation 2: Click Here To Show Diagram Code `[go]$$B $$ +-------------------- $$ \| . . . . . . . . . . $$ \| . . . . . . . . . . $$ \| . . . . . X . . . . $$ \| . . . O . . . . . , $$ \| . . 4 6 . . . . . . $$ \| . 7 1 2 5 . . . . . $$ \| . . . 3 . . . . . . $$ \| . . . . . . . . . . $$ \| . . . . . . . . . . $$ \| . . . , . . . . . ,[/go]`

Author:	Gomoto [ Wed Apr 04, 2018 2:20 am ]
Post subject:	Re: Gomoto's Joseki Studies #2
White has now two options: Click Here To Show Diagram Code `[go]$$B $$ +-------------------- $$ \| . . . . . . . . . . $$ \| . . . . . . . . . . $$ \| . . . . . X . . . . $$ \| . . . O . b . . . , $$ \| . . O O . . . . . . $$ \| . X X O X . . . . . $$ \| . . . X a . . . . . $$ \| . . . . . . . . . . $$ \| . . . . . . . . . . $$ \| . . . , . . . . . ,[/go]`

Author:	Gomoto [ Wed Apr 04, 2018 2:25 am ]
Post subject:	Re: Gomoto's Joseki Studies #2
Variation 2a: Click Here To Show Diagram Code `[go]$$W $$ +-------------------- $$ \| . . . . . . . . . . $$ \| . . . . . . . . . . $$ \| . . . . . X . . . . $$ \| . . . O . . . . . , $$ \| . . O O 5 . . . . . $$ \| . X X O . 3 . . . . $$ \| . . . X 1 . . . . . $$ \| . . . 2 4 . . . . . $$ \| . . . . . . . . . . $$ \| . . . , . . . . . ,[/go]` Additional info: Rin Kaiho 9p - Hisai Keishi 9p, W+7.5 (Komi 5.5)

Author:	Gomoto [ Wed Apr 04, 2018 2:29 am ]
Post subject:	Re: Gomoto's Joseki Studies #2
Variation 2b: Click Here To Show Diagram Code `[go]$$W $$ +-------------------- $$ \| . . . . . . . . . . $$ \| . . 0 6 9 . . . . . $$ \| . . 4 5 . X W . . . $$ \| . . . O . 1 2 . . , $$ \| . . O O . 3 . . . . $$ \| . X X O X . . . . . $$ \| . . . X 7 . . . . . $$ \| . . . 8 . . . . . . $$ \| . . . . . . . . . . $$ \| . . . , . . . . . ,[/go]`

Author:	Gomoto [ Wed Apr 04, 2018 2:32 am ]
Post subject:	Re: Gomoto's Joseki Studies #2
Variation 2c: (situational) Black plays at a or tenuki. Click Here To Show Diagram Code `[go]$$W $$ +-------------------- $$ \| . . . . . . . . . . $$ \| . . . . 3 . . . . . $$ \| . . . . . X . . . . $$ \| . . . O . . . . . , $$ \| . 1 O O . 2 . . . . $$ \| . X X O X . . . . . $$ \| . . . X . . . . . . $$ \| . . . . a . . . . . $$ \| . . . . . . . . . . $$ \| . . . , . . . . . ,[/go]` Additional info:

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