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 Post subject: Gomoto's Joseki Studies #2
Post #1 Posted: Thu Mar 29, 2018 4:48 am 
Gosei

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What is your next move?

Click Here To Show Diagram Code
[go]$$B
$$ +--------------------
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . X . . . .
$$ | . . . O . . . . . ,
$$ | . . . . . . . . . .
$$ | . . 1 2 . . . . . .
$$ | . . . 3 . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . , . . . . . ,[/go]


Last edited by Gomoto on Thu Mar 29, 2018 4:58 am, edited 2 times in total.
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 Post subject: Re: Gomoto's Joseki Studies #2
Post #2 Posted: Thu Mar 29, 2018 4:49 am 
Gosei

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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 ;-))


Last edited by Gomoto on Thu Mar 29, 2018 5:13 am, edited 2 times in total.
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 Post subject: Re: Gomoto's Joseki Studies #2
Post #3 Posted: Thu Mar 29, 2018 4:51 am 
Gosei

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The Joseki continues ...

Click Here To Show Diagram Code
[go]$$B
$$ +--------------------
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . X . . . .
$$ | . . . O . . . . . ,
$$ | . . 4 6 . . . . . .
$$ | . . 1 2 5 . . . . .
$$ | . . . 3 . . . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . , . . . . . ,[/go]

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 Post subject: Re: Gomoto's Joseki Studies #2
Post #4 Posted: Thu Mar 29, 2018 4:56 am 
Gosei

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Variation 1:

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

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 Post subject: Re: Gomoto's Joseki Studies #2
Post #5 Posted: Thu Mar 29, 2018 4:58 am 
Gosei

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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]


Last edited by Gomoto on Thu Mar 29, 2018 5:46 am, edited 2 times in total.
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 Post subject: Re: Gomoto's Joseki Studies #2
Post #6 Posted: Thu Mar 29, 2018 5:03 am 
Gosei

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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]

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 Post subject: Re: Gomoto's Joseki Studies #2
Post #7 Posted: Thu Mar 29, 2018 5:38 am 
Gosei

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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]


Last edited by Gomoto on Thu Mar 29, 2018 5:45 am, edited 1 time in total.
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 Post subject: Re: Gomoto's Joseki Studies #2
Post #8 Posted: Thu Mar 29, 2018 5:42 am 
Gosei

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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]

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 Post subject: Re: Gomoto's Joseki Studies #2
Post #9 Posted: Thu Mar 29, 2018 5:43 am 
Gosei

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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]

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 Post subject: Re: Gomoto's Joseki Studies #2
Post #10 Posted: Thu Mar 29, 2018 5:50 am 
Gosei

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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]

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 Post subject: Re: Gomoto's Joseki Studies #2
Post #11 Posted: Wed Apr 04, 2018 2:19 am 
Gosei

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Variation 2:

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

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 Post subject: Re: Gomoto's Joseki Studies #2
Post #12 Posted: Wed Apr 04, 2018 2:20 am 
Gosei

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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]

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 Post subject: Re: Gomoto's Joseki Studies #2
Post #13 Posted: Wed Apr 04, 2018 2:25 am 
Gosei

Posts: 1733
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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)


Last edited by Gomoto on Wed Apr 04, 2018 3:06 am, edited 1 time in total.
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 Post subject: Re: Gomoto's Joseki Studies #2
Post #14 Posted: Wed Apr 04, 2018 2:29 am 
Gosei

Posts: 1733
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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]

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 Post subject: Re: Gomoto's Joseki Studies #2
Post #15 Posted: Wed Apr 04, 2018 2:32 am 
Gosei

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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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