Life In 19x19

Posted: **Sat Nov 27, 2010 5:34 pm**

BUMP

Uhhh...Violence?...You there?....it's your move.

Posted: **Tue Nov 30, 2010 2:58 pm**

Blah, Approved.

Posted: **Tue Nov 30, 2010 5:16 pm**

Trigger for everybody except Chew Terr, and for Chew Terr after he has moved:

Posted: **Thu Dec 02, 2010 4:38 pm**

Click Here To Show Diagram Code: [go]$$Bc 94A W41 B 46 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . . . O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . . . . X O . . | $$ | . O O X . . . O . O X O O . . X X . . | $$ | . . O X . . X . O . X O X O W O . . . | $$ | . . O X . . . . O X X O X X X . . . . | $$ | . . O X . . . . O . X X O O . . . . . | $$ | . X X O X . X . . O O O . . . , . . . | $$ | . O O O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Sorry for the delay, work has been so swamped it may as well be scuttled.

I looked at alternatives to try not to miss anything obvious, but this seems to be the best route forwards.

Click Here To Show Diagram Code: [go]$$Bc 94A W41 B 46 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . . . O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . . . . X O . . | $$ | . O O X . . . O . O X O O . . X X . . | $$ | . . O X . . X . O . X O X O W O . . . | $$ | . . O X . . . . O X X O X X X 1 2 . . | $$ | . . O X . . . . O . X X O O . 3 . . . | $$ | . X X O X . X . . O O O . . . . . . . | $$ | . O O O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

1 by black seems forced, but then... it gets really complicated. That said, if we don't play where I'm playing, I think we're just sunk. I kind of like 4 attaching below 3, but it'll have to wait until we're closer to decide, so I have more time to read.

Posted: **Thu Dec 02, 2010 4:55 pm**

Approved.

Posted: **Mon Dec 06, 2010 3:11 am**

Click Here To Show Diagram Code: [go]$$Bc 95A W41 B 46 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . . . O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . . . . X O . . | $$ | . O O X . . . O . O X O O . . X X . . | $$ | . . O X . . X . O . X O X O O O . . . | $$ | . . O X . . . . O X X O X X X . . . . | $$ | . . O X . . . . O . X X O O B . . . . | $$ | . X X O X . X . . O O O . . . , . . . | $$ | . O O O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

The first goal I see is cutting off and killing the P17 group starting with O15. It looks like a gote affair that gives white massive thickness toward the lower right.

Click Here To Show Diagram Code: [go]$$Bc 95A W41 B 46 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . 8 9 O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . 5 1 2 X O . . | $$ | . O O X . . . O . O X O O 3 7 X X . . | $$ | . . O X . . X . O . X O X O O O . . . | $$ | . . O X . . . . O X X O X X X 4 . . . | $$ | . . O X . . . . O . X X O O 6 . . . . | $$ | . X X O X . X . . O O O . . . , . . . | $$ | . O O O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Click Here To Show Diagram Code: [go]$$Bc 95A W41 B 46 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . 3 . O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . . 1 4 X O 9 . | $$ | . O O X . . . O . O X O O 2 5 X X 7 . | $$ | . . O X . . X . O . X O X O O O 6 8 . | $$ | . . O X . . . . O X X O X X X . . . . | $$ | . . O X . . . . O . X X O O . . . . . | $$ | . X X O X . X . . O O O . . . , . . . | $$ | . O O O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

The only mitigating preliminary exchange that I can see is something like this:

Click Here To Show Diagram Code: [go]$$Bc 95A W41 B 46 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . . . O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . . . . X O . . | $$ | . O O X . . . O . O X O O . . X X . . | $$ | . . O X . . X . O . X O X O O O . . . | $$ | . . O X . . . . O X X O X X X . 3 . . | $$ | . . O X . . . . O . X X O O 1 . . . . | $$ | . X X O X . X . . O O O . . . , . . . | $$ | . O O O . . . . . . . . . 2 . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I hope white'll have to do something about the cutting point at O14, giving us the opportunity to weasel securely toward the lower right and relieving us from prospect of the heavy-handed corner kill.

Posted: **Mon Dec 13, 2010 10:56 am**

That's weird, I made a post here but don't see it now. :scratch:

Click Here To Show Diagram Code: [go]$$Bc 95B W43 B46 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . . . O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . . . . X O . . | $$ | . O O X . . . O . O X O O . . X X . . | $$ | . . O X . . X . O . X O X O O O . . . | $$ | . . O X . . . . O X X O X X X B . . . | $$ | . . O X . . . . O . X X O O C . . . . | $$ | . X X O X . X . . O O O . . . , . . . | $$ | . O O O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Posted: **Mon Dec 13, 2010 1:06 pm**

Approved.

Posted: **Mon Dec 13, 2010 3:55 pm**

Click Here To Show Diagram Code: [go]$$Bc 95B W43 B46 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . . . O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . . . . X O . . | $$ | . O O X . . . O . O X O O . . X X . . | $$ | . . O X . . X . O . X O X O O O . . . | $$ | . . O X . . . . O X X O X X X X W . . | $$ | . . O X . . . . O . X X O O . . . . . | $$ | . X X O X . X . . O O O . . . , . . . | $$ | . O O O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Swamped at work, so I had less time to work on this than I really wanted... here's what I looked at, though.

Click Here To Show Diagram Code: [go]$$Bc 95B W43 B46 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . . . O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . . . . X O 4 . | $$ | . O O X . . . O . O X O O . . X X . . | $$ | . . O X . . X . O . X O X O O O W 2 . | $$ | . . O X . . . . O X X O X X X X 1 3 . | $$ | . . O X . . . . O . X X O O . . . . . | $$ | . X X O X . X . . O O O . . . , . . . | $$ | . O O O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

This would be okay.

Click Here To Show Diagram Code: [go]$$Bc 95B W43 B46 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . . . O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . . . . X O . . | $$ | . O O X . . . O . O X O O 3 . X X . . | $$ | . . O X . . X . O . X O X O O O W 2 . | $$ | . . O X . . . . O X X O X X X X 1 . . | $$ | . . O X . . . . O . X X O O . . . . . | $$ | . X X O X . X . . O O O . . . , . . . | $$ | . O O O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Unfortunately, I don't see a good answer to this.

Click Here To Show Diagram Code: [go]$$Bc 95B W43 B46 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . 6 . O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . . . . X O . . | $$ | . O O X . . . O . O X O O . . X X . . | $$ | . . O X . . X . O . X O X O O O 4 . . | $$ | . . O X . . . . O X X O X X X X W . . | $$ | . . O X . . . . O . X X O O . 1 2 . . | $$ | . X X O X . X . . O O O . . . 3 5 . . | $$ | . O O O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

This may be good enough? Notably, 6 blocks the cut at O14 (which came as a bit of a surprise to me as I looked at it). I think it's the best I've got, so I'll go with it.

Posted: **Tue Dec 14, 2010 9:22 am**

I disapprove.

Click Here To Show Diagram Code: [go]$$Bc 95B W43 B48 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . . . O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . . . . X O . . | $$ | . O O X . . . O . O X O O . . X X . . | $$ | . . O X . . X . O . X O X O O O W . . | $$ | . . O X . . . . O X X O X X X X C . . | $$ | . . O X . . . . O . X X O O . . . . . | $$ | . X X O X . X . . O O O . . . , . . . | $$ | . O O O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Let's start with a quick summary of tactical goals. ( And I think that for the moment strategic goals can be ignored as they are comletely outweighed by tactical ones )

We can kill this:

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

...or we can kill this:

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

...or we can kill this:

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

...or we can resign.

Living without killing is not really possible. The upper side is like a small western town: "There ain't enough room here for the both of us". If we do live up there, even without trying to kill, we implicitly kill black's upper middle group anyway. M17 is the vital point. If we get it without dying in the process, black's eyespace is too ugly to live:

Click Here To Show Diagram Code: [go]$$Bc $$ --------------------------------------- $$ | . . . . . . . O ? ? . . . . . . . . . | $$ | . X X O O . O X ? ? X O . . . . . . . | $$ | . X O O . O X X ? ? X W . . O X X . . | $$ | . X X O O X O X ? X X O X . O O X . . | $$ | X X O X . X O O X O X O . . . X O . . | $$ | . O O X . . . O . O X O O . . X X . . | $$ | . . O X . . X . O . X O X O O O . . . | $$ | . . O X . . . . O X X O X X X X . . . | $$ | . . O X . . . . O . X X O O . . . . . | $$ | . X X O X . X . . O O O . . . , . . . |[/go]

So once we realize that we must kill something, then the question is: which one?

The upper right group can easily live like this:

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

...this group can run as Terr demonstrated:

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

...so we must first focus on killing the upper central group. And to do that we need M17.

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

It really is that simple, IMHO. The whole game can be reduced to the issue of whether or not we can get a certain move.

Trying it immediately is no good:

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

despite the cutting points at 'a' and 'b', white runs out of liberties too fast. Therefore, the whole game can be further refined to the issue of whether or not we can get more liberties to be able to play M17.

When our group looks like this:

Click Here To Show Diagram Code: [go]$$Bc $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . a . . O X X . . | $$ | . X X O O X O X . X X W X . O O X . . | $$ | X X O X . X O O X O X . . b . X O . . | $$ | . O O X . . . O . O X W W c . X X . . | $$ | . . O X . . X . O . X W X W W W d . . | $$ | . . O X . . . . O X X W X X X X . . . | $$ | . . O X . . . . O . X X O O . . . . . | $$ | . X X O X . X . . O O O . . . , . . . |[/go]

...and we can't play 'a', then the only way to get more liberties is to play 'b', 'c' or 'd'.

Playing 'b' or 'c' gets us nothing. Black captures M16 and his other groups are still safe.

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

That leaves us with 'd'. It starts to threaten both of black's other groups, so black cannot reflexively go after M16 immediately. Thus M17 is still a possibility for us. This line is complicated. Maybe it works; maybe it doesn't. But I'm not even going to bother to read it out completely, because all of the other alternatives clearly do not work.

However, I have read some of the obvious replies. One of the more interesting lines is this:

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

...where black dies in either a ladder or a crane's nest.

Posted: **Tue Dec 14, 2010 12:09 pm**

A few explanatory comments.

Click Here To Show Diagram Code: [go]$$Bc 95B W43 B48 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . . . W X X . . | $$ | . X X O O X Q X . B B W X . W W X . . | $$ | X X O X . X Q Q X O B . . a . X O . . | $$ | . O O X . . . Q . O B W W a . X X . . | $$ | . . O X . . X . Q . B W # @ @ @ @ . . | $$ | . . O X . . . . Q B B W # # # # c . . | $$ | . . O X . . . . Q . B B O O . . . . . | $$ | . X X O X . X . . Q Q Q b . . , . . . | $$ | . O O O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Lots of weakish groups here. Black must save the :bc:

stones or lose the game. The question is how? It's probably possible to live in place with some sente moves against the top left and right, but that's for emergency use only. Ideally we want to live by killing a white group or gaining some other advantage.

I think the best possible outcome is we end up cutting at b and catching those two white stones while white struggles to live with both :wt:

and

/

. Second best is if we kill :ws:

. Third best (and it's not really good) is if we kill :wc:

, but

and

connect up, making a big wall. Our corner would be huge but it wouldn't effect the rest of the game enough.

I'm not sure that Joaz's change was a good one. White still has major problems with the cutting point around a and now white cannot directly capture :bs:

if black ignores it for one move. I won't be surprised if ShapeNaji changes it back. I think Joaz probably thought that Chew Terr's move would help black catch those two white stones in the middle.

If Joaz's move stands, I think the board is very promising for black.

Posted: **Wed Dec 15, 2010 4:05 am**

Approved

Posted: **Thu Dec 16, 2010 10:05 pm**

@Gresil: your turn now.

Posted: **Fri Dec 17, 2010 12:08 am**

I'm getting there... ETA: when I get back from work.

Locally R12 is terrible and P10 leaves white with excellent follow-ups.

Click Here To Show Diagram Code: [go]$$Bc 95B W43 B48 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . . . O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . . . . X O . . | $$ | . O O X . . . O . O X O O . . X X 3 . | $$ | . . O X . . X . O . X O X O O O O 2 . | $$ | . . O X . . . . O X X O X X X X . . . | $$ | . . O X . . . . O . X X O O . . 4 . . | $$ | . X X O X . X . . O O O . . 1 , . . . | $$ | . O O O . . . . . . . . . . . 5 . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

The remaining local option is

Click Here To Show Diagram Code: [go]$$Bc 95B W43 B48 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X 2 . . . . . . . . . . | $$ | . X O O . O X X . . . . . . O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . . . . X O . . | $$ | . O O X . . . O . O X O O . . X X . . | $$ | . . O X . . X . O . X O X O O O O . . | $$ | . . O X . . . . O X X O X X X X . . . | $$ | . . O X . . . . O . X X O O . . . . . | $$ | . X X O X . X . . O O O . . . 1 . . . | $$ | . O O O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

and I anticipate that

The supposed placement at O15 no longer works like I envisioned a move or two back because the R14 group is now short of liberties.

The apparent options are making life at the top and (now that I look at the P10 diagram) taking a closer peep at whether the N10 cut is usable first.

Posted: **Fri Dec 17, 2010 8:04 am**

Click Here To Show Diagram Code: [go]$$Bc 97A W43 B48 $$ --------------------------------------- $$ | . . . . . . . O . . . . . . . . . . . | $$ | . X X O O . O X . . . . . . . . . . . | $$ | . X O O . O X X . . . . . . O X X . . | $$ | . X X O O X O X . X X O X . O O X . . | $$ | X X O X . X O O X O X . . . . X O . . | $$ | . O O X . . . O . O X O O . . X X . . | $$ | . . O X . . X . O . X O X O O O O . . | $$ | . . O X . . . . O X X O X X X X . . . | $$ | . . O X . . . . O . X X O O . . . . . | $$ | . X X O X . X . . O O O . . 1 , . . . | $$ | . O O O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . X . X . . . . . . . . . . . . . . | $$ | . . . , . O . . . , . . . . . O . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Life In 19x19

Big Brother Malkovich # 1 (continued)

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