#239 SoDesuNe vs topazg

topazg · Post by **topazg** » Sun Jul 27, 2014 3:02 pm

Click Here To Show Diagram Code: [go]$$Bc $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . 2 . . . . . . . . . 5 . . . . | $$ | . . . , . . . . . , . . . . . , 1 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . 7 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . 6 . . | $$ | . . . 4 . . . . . , . . . . 9 , . . . | $$ | . . . . . . . . . 0 . . 8 . . 3 . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

As planned.

Now I need to decide on my 12. I'm assuming he'll play to seal in :w6:

, although there's still enough aji that life might be something later, will have to do some detailed reading before I aji-keshi it out, but it's not a shape I can remember off hand.

So, that being the case, completing the top left shimari looks pretty normal and decent, but I'm also wondering about playing on the left edge and effectively double approaching his approach stone (if that makes any sense - something like this anyway):

Click Here To Show Diagram Code: [go]$$Bcm11 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . . . . . . X . . . . | $$ | . . 3 , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 4 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 2 . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . 1 . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . . . . . , . . . . X , . . . | $$ | . . . . . . . . . O . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

I sort of like this result really ... I just wonder if it's a bit "points-light" though.

Either way, it feels better than my original plan of something like:

Click Here To Show Diagram Code: [go]$$Bcm11 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . 2 . a . . X . . . . | $$ | . . 3 , . . . . . , . . . . . , X . . | $$ | . . 5 4 . . . . . . . . . . . . . . . | $$ | . . . 6 . . . . . . . . . . . . . . . | $$ | . . 7 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . 1 . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . . . . . , . . . . X , . . . | $$ | . . . . . . . . . O . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

With the shimari in the top right, this no longer seems very interesting to me, and I can't play :w12:

high very comfortably without making that "a" very annoying.

Bill Spight · Post by **Bill Spight** » Sun Jul 27, 2014 4:22 pm

topazg's plan,

Click Here To Show Diagram Code: [go]$$Bcm11 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . . . . . . X . . . . | $$ | . . 3 , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 4 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 2 . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . 1 . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . . . . . , . . . . X , . . . | $$ | . . . . . . . . . O . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

is interesting.

My first thought was like his first thought, the extension on the top side:

Click Here To Show Diagram Code: [go]$$Bc $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . 2 . . . . X . . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . 3 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . 0 . . | $$ | . . . . . . . . . . . . . . . 1 . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . . . . . , . . . . X , . . . | $$ | . . . . . . . . . O . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

After all, it prevents the double wing and aims at :w10:

. But it leaves the left side wide open. I would worry about :b3:

.

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

Another thought was this shimari, which makes :b3:

bigger, but aims to get the last move of the opening with :w4:

.

I also thought of this move:

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

The shoulder blow aims at reducing Black's incipient moyo and then returning to the top left corner if White keeps sente.

But topazg's idea has inspired me to think about a play on the left side.

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

Similar to the Chinese formation, anywhere Black plays on the left side is a bit awkward.

All things considered, I lean towards the high shimari. But I doubt that White will play there.

Uberdude · Post by **Uberdude** » Sun Jul 27, 2014 4:41 pm

SoDesuNe · Post by **SoDesuNe** » Mon Jul 28, 2014 12:14 am

Click Here To Show Diagram Code: [go]$$Wcm10 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . . . . . . X . . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . 2 . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . . . . . , . . . . X , . . . | $$ | . . . . . . . . . 1 . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

Uberdude · Post by **Uberdude** » Mon Jul 28, 2014 3:47 am

@SoDesuNe

Bill Spight · Post by **Bill Spight** » Mon Jul 28, 2014 4:31 am

Click Here To Show Diagram Code: [go]$$Wcm10 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . . . . . . X . . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . 3 . . | $$ | . . . . . . . . . . . . . . . 2 . . . | $$ | . . . . . . . . . . . . . . . . W . . | $$ | . . . O . . . . . , . . . . X , . . . | $$ | . . . . . . . . . 1 . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

I was not surprised by SoDesuNe's choice of :b11:

. It was popular in ancient games with similar positions. Players were even more territorial than players today, yet they valued the outside influence of :b11:

. And SoDesuNe indicated that he has played over some of those ancient games.

Note: :b11:

does not capture the :wc:

stone. A normal continuation is :w12:

, but it would not be good at the moment.

Uberdude has been more than hinting at the possibility of the diagonal attachment, which, OC, should be considered.

Click Here To Show Diagram Code: [go]$$Wcm10 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . . . . . . X . . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . 3 . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . 3 W . . | $$ | . . . O . . . . . , . . . . X , 2 . . | $$ | . . . . . . . . . 1 . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

Possible continuations are the stand and the shoulder blow. The stand is terrible, and the shoulder blow is bad now and probably would be bad later, as well. :b11:

is attractive because it secures the corner and it is difficult for :wc:

to run.

Click Here To Show Diagram Code: [go]$$Wcm10 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . . . . . . X . . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . 3 . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . 3 . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . 3 . . W . . | $$ | . . . O . . . . . , . . . . X , 2 . . | $$ | . . . . . . . . . 1 . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

So the game for White is probably to sacrifice :wc:

with plays like :w12:

, sooner or later. Because of the possibility of the capping play or the invasion of the top right side, the top side is less urgent after this choice of :b11:

.

SoDesuNe · Post by **SoDesuNe** » Mon Jul 28, 2014 4:40 am

Uberdude wrote:@SoDesuNe

SoDesuNe wrote:
So far, so forced?

Not really, there was another plausible choice for your last move IMO. Did you consider anything else? One bit of mental discipline I recommend is to always consider at least 3 candidate moves (yes even if you have a crucial stone in atari and there's only one sane move of extend follow the discipline as other times you think there's only one move there isn't). It's a good way to overcome bad instincts and broaden your horizons.

topazg · Post by **topazg** » Mon Jul 28, 2014 4:55 am

Click Here To Show Diagram Code: [go]$$Wcm10 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . . . . . . X . . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 3 . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . 2 . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . . . . . , . . . . X , . . . | $$ | . . . . . . . . . 1 . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

Bill Spight · Post by **Bill Spight** » Mon Jul 28, 2014 6:30 am

Click Here To Show Diagram Code: [go]$$Wcm10 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . a . O . . . . . . . . . X . . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . 4 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . a . . . . . . . . . . . . . . . . | $$ | . . b . . . . . . . . . . . . . . . . | $$ | . . . 3 . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . 2 . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . . . . . , . . . . X , . . . | $$ | . . . . . . . . . 1 . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

opens up the possibility of the invasion at :b13:

, now or maybe later.
Then Black has the "a" points as miai.

Note that my suggestion of :w12:

at "b" does not allow that possibility.

Edit: Unhidden.

SoDesuNe · Post by **SoDesuNe** » Mon Jul 28, 2014 7:41 am

Click Here To Show Diagram Code: [go]$$Wcm10 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . . . . . . B . . . . | $$ | . . b , . . . . . , . . . . . , X . . | $$ | . . . a . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 3 . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . 2 . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . . . . . , . . . . X , . . . | $$ | . . . . . . . . . 1 . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

Peculiar!
I wouldn't have played this move. Hard to explain...
I feel that like this White's stones are not really working together. The relation to the top left corner seems a bit strange, like making an extension from a Shimari without a Shimari in place.
I don't know about the fourth line, too. I'm pretty thick at the bottom right and can easily reduce any center from the bottom by shoulder-hitting.

Playing 'a' was my first instinct. Maybe I can cut off :w12:

and make it look a bit misplaced.
'b' also crossed my mind, but I don't think White will press me down with 'a' (which I consider good for Black because I don't think a framework can easily happen in this game due to the marked black stone) but counter-pincer and then he can easily play on both sides, making :w12:

a good play.

I'm again a bit shaky when it comes the Joseki.

Click Here To Show Diagram Code: [go]$$Bcm13 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . . . . . . B . . . . | $$ | . 4 2 a . d . . . , . . . . . , X . . | $$ | . . 3 1 . c . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . b 5 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . . . . . , . . . . X , . . . | $$ | . . . . . . . . . O . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

Is

correct or does White play at 'a'? Would look a bit funny, though. I also have to decide whether playing :b17:

at 'b' is better but I don't really think so. :w16:

undercuts my base anyway, so making shape towards the center seems better.
After :w16:

, Black 'c' becomes an important shape point. I guess for White 'd' is more solid. But again due the low marked black stone, I'm not too concerned about the top becoming too large.

Click Here To Show Diagram Code: [go]$$Wcm18 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . . . . . . X . . . . | $$ | . O O . . . . . . , . . . . . , X . . | $$ | . . X X . a . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . b . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . c O . 1 . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . . . . . , . . . . X , . . . | $$ | . . . . . . . . . O . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

So what is White's plan? Attacking with :w18:

and making the bottom left kinda bigish?
But that's not really severe, is it? I see at least three options to make shape. I might Tenuki and deal with the bottom left right away...

I need some more time to think about this and other possibilities =)

Bill Spight · Post by **Bill Spight** » Mon Jul 28, 2014 10:57 am

Click Here To Show Diagram Code: [go]$$Bcm13 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . . . . . . X . . . . | $$ | . . 2 4 . 6 . . . , . . . . . , X . . | $$ | . . 3 1 5 . . . . . . . . . . . . . . | $$ | . . . . . . 7 . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . . . . . , . . . . X , . . . | $$ | . . . . . . . . . O . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

I think that this is the way for White to play if :b13:

. Now any extension with :b19:

is overconcentrated.

SoDesuNe · Post by **SoDesuNe** » Mon Jul 28, 2014 11:50 am

I figured I should also think about two other things.

One: How the Aji in the bottom right plays out.
Two: If I repeatedly say, the center is not that important in this game. Can I get away with inading 3*3 now?

ONE:

Click Here To Show Diagram Code: [go]$$Wc White to live $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . . . . . . X . . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . 2 4 . . | $$ | . . . . . . . . . . . . . . . X 1 . . | $$ | . . . . . . . . . . . . . . . . O . 7 | $$ | . . . O . . . . . , . . . . X , . . . | $$ | . . . . . . . . . O . . W . . X . 3 . | $$ | . . . . . . . . . . . . . . . 6 5 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

I guess that lives?
The closeness of the marked white stone makes more sense to me now ^^

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

I'm not 100% sure but I guess that dies. In a pro match :b1:

was played and the comments explained this kills the Aji in the corner - at least if my memory serves me right.

There are some other variations of course. I will deal with them later ^^ (Lazy me!)

TWO:

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

Taking Sente like this... hmmm...
If White now lives in the bottom right corner I play like 'a' and would feel perfectly fine.
If White plays 'a' instead then maybe 'b' is called for, I'm not that good with handling center groups though. White feels in command like that and I don't like it ^^

Click Here To Show Diagram Code: [go]$$Bc $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . . . . . . X . . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . 2 O 8 . . . . , . . . . X , . . . | $$ | . . 1 3 4 7 . . . W . . O . . X . . . | $$ | . . . 0 5 6 9 . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

Double-Hane is very powerful here due to the marked stone, I guess. Although there is the question of how weak White's bottom group becomes...

Hm, I think invading 3*3 immediately is not the right way. (It also felt wrong ^^)

Loons · Post by **Loons** » Mon Jul 28, 2014 11:57 am

Click Here To Show Diagram Code: [go]$$Wcm10 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . 4 . . . . . . . X . . . . | $$ | . . 5 , . . . . . 6 . . . . . , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . O . . . . . , . . . . X , . . . | $$ | . . . . . . . . . O . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

I don't like a lot of discussed ilnes. This is my attempt to use bottom right. I disagree with Sodesune that the centre is unimportant this game : As a matter of fact it looks like a moyo game.

Click Here To Show Diagram Code: [go]$$Wcm10 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . @ . B . . . . . . . # . . . . | $$ | . . @ , . . . . . B . . . . . , # . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . Q . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . Y . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . Y . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . Q . . . . . , . . . . Y , . . . | $$ | . . . . . . . . . W . . W . . Y . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

Uberdude · Post by **Uberdude** » Mon Jul 28, 2014 2:50 pm

@Loons

Uberdude · Post by **Uberdude** » Mon Jul 28, 2014 2:54 pm

Bill Spight wrote:
$$Wcm10
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . O . . . . . . . . . X . . . . |
$$ | . . . , . . . . . , . . . . . , X . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . 3 . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . 3 . X . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . 3 . . W . . |
$$ | . . . O . . . . . , . . . . X , 2 . . |
$$ | . . . . . . . . . 1 . . O . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+

Click Here To Show Diagram Code
[go]$$Wcm10 $$ +---------------------------------------+ $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . O . . . . . . . . . X . . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . 3 . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . 3 . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . 3 . . W . . | $$ | . . . O . . . . . , . . . . X , 2 . . | $$ | . . . . . . . . . 1 . . O . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ +---------------------------------------+[/go]

So the game for White is probably to sacrifice with plays like , sooner or later. Because of the possibility of the capping play or the invasion of the top right side, the top side is less urgent after this choice of .

Nicely put. That's the sort of thing I was trying to think about how r4 affects white's play elsewhere but it hadn't really crystallized. By being a territory rather than influence move it makes a moyo game less likely: simple really.

Life In 19x19

#239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg

Re: #239 SoDesuNe vs topazg