#263 Magicwand vs Joaz Banbeck

Magicwand · **#221**

Click Here To Show Diagram Code: [go]$$Wcm121 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . 4 X . . . . | $$ | . . . . . . . . . . . . 5 1 O X . . . | $$ | . . . X . O . . . , . . . . . 2 . . . | $$ | . . . . . . . . . . . . . . 3 O . . . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . . X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Joaz Banbeck · **#222**

Click Here To Show Diagram Code: [go]$$Wcm121 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . 4 X . . . . | $$ | . . . . . . . . . . . . 5 1 O X . . . | $$ | . . . X . O . . . , . . . . . 2 . 6 . | $$ | . . . . . . . . . . . . . . 3 O . . . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . . X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Magicwand · **#223**

tj86430 · **#224**

Magicwand wrote:

S15

Click Here To Show Diagram Code: [go]$$Wcm121 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . 4 X . . . . | $$ | . . . . . . . . . . . . 5 1 O X . . . | $$ | . . . X . O . . . , . . . . . 2 . 6 . | $$ | . . . . . . . . . . . . . . 3 O . 7 . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . . X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Joaz Banbeck · **#225**

Click Here To Show Diagram Code: [go]$$Wcm121 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . 4 X . . . . | $$ | . . . . . . . . . . . . 5 1 O X . . . | $$ | . . . X . O . . . , . . . . 8 2 . 6 . | $$ | . . . . . . . . . . . . . . 3 O . 7 . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . . X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Magicwand · **#226**

trigger if you accept

Click Here To Show Diagram Code: [go]$$Wcm131 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . 1 X X X . X . | $$ | . . . . . . . . . . . . . O O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . . X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Joaz Banbeck · **#227**

@observers:

You observers may be wondering: "Why is Joaz deviating from a hitherto largely successful strategy of influence, and turning to fighting from the dubious vantage point of a small enclosed group?"

The answer is L5:

Click Here To Show Diagram Code: [go]$$Wcm121 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . . . X X . X . | $$ | . . . . . . . . . . . . . . O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . . X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O B X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

As a subtle side effect of the recent fighting in the lower right, the minor addition of L5 has made white's center group vulnerable. I don't know if MW even noticed it.
The white center group is now alive only with ko - at least according to my reading.
The rest of this post will be devoted to examining that proposition.

It is a flower-viewing ko for me: I risk only a few attacking stones, white risks the whole middle of the board.

It starts like this:

Click Here To Show Diagram Code: [go]$$Bcm1 $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . . . X X . X . | $$ | . . . . . . . . . . . . . . O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . . X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . 1 . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O B X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

The first minor effect of this is that the potential white eye at K10 is now gone unless white makes an extra effort to restore it. Now L9 and J11 are miai to make it a false eye.

Click Here To Show Diagram Code: [go]$$Bcm1 $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . . . X X . X . | $$ | . . . . . . . . . . . . . . O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X C O X . . . . . X . . | $$ | . O . X O . X . O T O . X . . O . . . | $$ | . . . X O X . . O O C 1 . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O B X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

The second thing worth noting is that the potential eye space at K6 is now compromised. There are two ways that it becomes worthless:
1) Black plays on L8 below, and white has to fill.
2) Black plays on J7, and K6 is a false eye.

Click Here To Show Diagram Code: [go]$$Bcm1 $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . . . X X . X . | $$ | . . . . . . . . . . . . . . O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . . X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . 1 . . . . X . . | $$ | . O . X O O X . . . C O X . . . . X . | $$ | . . O X X X X . C . X O X . . O X . . | $$ | . . O X O . O . O T O O X . . O O X . | $$ | . O X O O . O . O O B X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

These weaknesses are almost enough to seal white's death. Unfortunately, white has one sequence that helps him. He can get H5 in sente:

Click Here To Show Diagram Code: [go]$$Bcm1 $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . . . X X . X . | $$ | . . . . . . . . . . . . . . O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . . X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . 1 . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O 4 O O B X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O 2 3 X O O . . O X O . O . | $$ | . . . . . . 5 . . . . . . . X . . . . | $$ ---------------------------------------[/go]

As I'm writing this I see that MW has played. I have to look at that. More later...

Joaz Banbeck · **#228**

Click Here To Show Diagram Code: [go]$$Wcm131 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . 1 X X X . X . | $$ | . . . . . . . . . . . . 2 O O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . . X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Joaz Banbeck · **#229**

@Observers:

Joaz Banbeck wrote:

You observers may be wondering: "Why is Joaz deviating from a hitherto largely successful strategy of influence, and turning to fighting from the dubious vantage point of a small enclosed group?"
...
The white center group is now alive only with ko - at least according to my reading.

...white has one sequence that helps him. He can get H5 in sente:

Click Here To Show Diagram Code: [go]$$Bcm1 $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . . . X X . X . | $$ | . . . . . . . . . . . . . . O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . . X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . 1 . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O 4 O O B X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O 2 3 X O O . . O X O . O . | $$ | . . . . . . 5 . . . . . . . X . . . . | $$ ---------------------------------------[/go]

As I'm writing this I see that MW has played. I have to look at that. More later...

As expected, white has enclosed, and I have cut. He now has two marginal groups on the outside, and I have a small group in the corner. All of them are targets for ko threats.

This should be good for me. If white wins the ko and lives in the center and I kill one of the two small white groups in the upper right, I am way ahead on points.
If black wins the ko in the center at the expense of losing the black corner group in the upper right, the net profit should also be enough to win.

So don't be surprised if you read MW boasting that he is going to kill the corner. I'm not making a lot of effort to protect it. I'm focused on the center of the board.

The sequence that leads to the ko looks like this:

Click Here To Show Diagram Code: [go]$$Wcm1 $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . O X X X . X . | $$ | . . . . . . . . . . . . X O O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . . X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . X . . . . X . . | $$ | . O . X O O X 4 5 . 1 O X . . . . X . | $$ | . . O X X X X 3 2 6 X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O O O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O O X X O O . . O X O . O . | $$ | . . . . . . X . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Schachus · **#230**

Go_Japan · **#231**

Schachus wrote:

Magicwand · **#232**

Click Here To Show Diagram Code: [go]$$Wcm131 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . 1 X X X . X . | $$ | . . . . . . . . . . . . 2 O O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . 3 X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Joaz Banbeck · **#233**

Click Here To Show Diagram Code: [go]$$Wcm131 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . 1 X X X . X . | $$ | . . . . . . . . . . . . 2 O O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . . 4 X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . 3 X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Magicwand · **#234**

Click Here To Show Diagram Code: [go]$$Wcm131 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . 1 X X X . X . | $$ | . . . . . . . . . . . . 2 O O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . 5 4 X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . 3 X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Joaz Banbeck · **#235**

Click Here To Show Diagram Code: [go]$$Wcm131 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . 1 X X X 6 X . | $$ | . . . . . . . . . . . . 2 O O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . 5 4 X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . 3 X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Trigger:

Click Here To Show Diagram Code: [go]$$Wcm131 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . 1 X X X 6 X . | $$ | . . . . . . . . . . . . 2 O O O . O . | $$ | . . . X . X . X . X . . . . . 7 . O . | $$ | . . . . . . . . . . . . . . 5 4 X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . 3 X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . . 8 X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Joaz Banbeck · **#236**

A note to beginners about shape:

WARNING: Don't try this at home.

Click Here To Show Diagram Code: [go]$$Wcm1 $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . O X X X B X . | $$ | . . . . . . . . . . . . X O O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . O X X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . O X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

In a previous post, I noted that "...Move 136 is the second of two vulgar moves, whose sole purpose is to strengthen my corner in sente..."

If it were not for sente issues, IMHO the proper play in the corner would have been this:

Click Here To Show Diagram Code: [go]$$Wcm1 $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . B . | $$ | . . . X . O . . . , . . O X X X . X . | $$ | . . . . . . . . . . . . X O O O . O . | $$ | . . . X . X . X . X . . . . . . . O . | $$ | . . . . . . . . . . . . . . O X X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . O X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . . . X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

It potentially concedes a point, but the corner now is unkillable. And any yose play against it is gote. In the long run that is probably worth more than a point.
In many variations, black has to play S17 anyway, so there is no point lost.

Magicwand · **#237**

Click Here To Show Diagram Code: [go]$$Wcm131 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . 1 X X X 6 X . | $$ | . . . . . . . . . . . . 2 O O O . O . | $$ | . . . X . X . X . X . . . . . 7 . O . | $$ | . . . . . . . . . . . . . . 5 4 X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . 3 X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . 9 8 X . . | $$ | . O . X O O X . . . . O X . . . . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Joaz Banbeck · **#238**

Click Here To Show Diagram Code: [go]$$Wcm131 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . 1 X X X 6 X . | $$ | . . . . . . . . . . . . 2 O O O . O . | $$ | . . . X . X . X . X . . . . . 7 . O . | $$ | . . . . . . . . . . . . . . 5 4 X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . 3 X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . 9 8 X . . | $$ | . O . X O O X . . . . O X . . 0 . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Magicwand · **#239**

Click Here To Show Diagram Code: [go]$$Wcm141 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . O X X X X X . | $$ | . . . . . . . . . . . . X O O O . O . | $$ | . . . X . X . X . X . . . . . O . O . | $$ | . . . . . . . . . . . . . . O X X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . . . O X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . O X X . . | $$ | . O . X O O X . . . . O X . 1 X . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

Joaz Banbeck · **#240**

Click Here To Show Diagram Code: [go]$$Wcm141 Prisoners: $$ ---------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X X . . . . | $$ | . . . . . . . . . . . . O O O X . . . | $$ | . . . X . O . . . , . . O X X X X X . | $$ | . . . . . . . . . . . . X O O O . O . | $$ | . . . X . X . X . X . . . . . O . O . | $$ | . . . . . . . . . . . . . . O X X . . | $$ | . . O O . . O X . X . . . . . O X . . | $$ | . . . . O . . X . O X . . 2 . O X . . | $$ | . O . X O . X . O . O . X . . O . . . | $$ | . . . X O X . . O O . . . . O X X . . | $$ | . O . X O O X . . . . O X . 1 X . X . | $$ | . . O X X X X . . . X O X . . O X . . | $$ | . . O X O . O . O . O O X . . O O X . | $$ | . O X O O . O . O O X X . X X O . O . | $$ | . O X X O X X X O X X X X O . X O O . | $$ | . O X . X O X . X O X . O . X X O . . | $$ | . . X . X O . . X O O . . O X O . O . | $$ | . . . . . . . . . . . . . . X . . . . | $$ ---------------------------------------[/go]

#263 Magicwand vs Joaz Banbeck

Who is online