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Gomoto's Joseki Studies #2
http://www.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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