Life In 19x19

Posted: **Sun May 08, 2011 4:33 pm**

This position occurred in a game of mine and I wasn't sure how to play; I'm somewhat familiar with the cap as a reduction against an entire side formation but haven't really seen it used when the corners are controlled by different players.

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

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

I played

since my top right is very strong so I wanted to reduce the bottom right and it moves to cut white off and start a large attack. White ended up with a very bad result and :w3:

seems to be too greedy in this case. :w3:

at a seems to be the right direction to me.

Posted: **Sun May 08, 2011 4:38 pm**

I don't know if I like :w3:

at 'a', either. Also, white's stones on the top look a bit weak, so I don't know if I want to start too much of a rampage on the right.

Posted: **Sun May 08, 2011 4:49 pm**

White's

seems an overplay, and I agree with :b2:

as being a good refutation. :clap:

Consequently, there may be no such thing as a good play for :w3:

.

Kirby wrote:... white's stones on the top look a bit weak, so I don't know if I want to start too much of a rampage on the right.

I agree with this assement. If I felt I had to play on the right, the shoulder hit looks much safer:

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

BTW, I think that white has to play something like 'a' soon. Black has way too much central power.

Life In 19x19

Capping reduction with opposing corners.

Capping reduction with opposing corners.

Re: Capping reduction with opposing corners.

Re: Capping reduction with opposing corners.