Life In 19x19

Click Here To Show Diagram Code

[go]$$Bcm1 Move #14
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . 1 O . X . . . . 5 . O . . . . . |
$$ | . . X , 2 . . . . O . . . . . X . . . |
$$ | . . X O . . 3 . . . . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . 4 . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

i would already like to move to another part of the board but it is not possible yet.
black takes points and fixes some aji in his corner, but i weaken aji of black G17 at the same time.
seems that i might be able to leave position without adding another stone to the right-top
C11-D11 is becoming pretty large now, especially for black

Click Here To Show Diagram Code

[go]$$Wcm1 Diagram1: corner aji
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . O . X . . . . . . O . . . . . |
$$ | . 7 X , . . . . . O . . . . . X . . . |
$$ | . 5 X O . . . . . . . . . . . . . . . |
$$ | . 2 1 O . . . . . . . . . . . . X . . |
$$ | 6 3 X O . . . . . . . . . . . . . . . |
$$ | . 4 X O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Click Here To Show Diagram Code

[go]$$Bcm1 jump a little further
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . 4 . W . . . . . . . . . . . . . . |
$$ | . . . X O . X . . . . . . O . . . . . |
$$ | . . X , 2 1 . . . O . . . . . X . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . O . . 3 . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . 5 . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Click Here To Show Diagram Code

[go]$$Bcm1 worse for white
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . 3 . W . . . . . . . . . . . . . . |
$$ | . . . X O . X . . . . . . O . . . . . |
$$ | . . X 2 4 1 . . . O . . . . . X . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . O . . 5 . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Click Here To Show Diagram Code

[go]$$Bcm1 Maybe I can do this
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . 3 W . . . . . . . . . . . . . . |
$$ | . . . X O . X . . . . . . O . . . . . |
$$ | . . X , 2 1 . . . O . . . . . X . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Does this violate "Don't peep where you can cut"?

Click Here To Show Diagram Code

[go]$$Bcm1 Move #16
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . O . . . . . . . . . . . . . . |
$$ | . . . X O . X . . . . . . O . . . . . |
$$ | . . X , . B . . . O . . . . . X . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Unless I'm mistaken, that cut just doesn't work? If you try to cut, the cutting stone or D17 just die, from my quick read. Peeping when you can't cut is fine...

Chew Terr wrote:

dfan wrote:Does this violate "Don't peep where you can cut"?

$$Bcm1 Move #16
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . O . . . . . . . . . . . . . . |
$$ | . . . X O . X . . . . . . O . . . . . |
$$ | . . X , . B . . . O . . . . . X . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------

Click Here To Show Diagram Code

[go]$$Bcm1 Move #16
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . O . . . . . . . . . . . . . . |
$$ | . . . X O . X . . . . . . O . . . . . |
$$ | . . X , . B . . . O . . . . . X . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Unless I'm mistaken, that cut just doesn't work? If you try to cut, the cutting stone or D17 just die, from my quick read. Peeping when you can't cut is fine...

Oh, I'm not saying you could cut right away, but at some point in the future you might want to be able to, and forcing White to remove the cutting point seems like aji-keshi.

Yeah, makes sense. Still, it would take a lot to make that cut work. It seems to me like it's not aji-keshi, since he's trading the aji for something tangible (help in extracting that stone). It comes down to whether or not extracting that stone is worth the aji, and I think it may be. It comes down, in my mind, to how well white can attack that running group without being counterattacked.

i thought about it for a while, deciding between D16 and E16, in the end i chose this, as it seems no worse plus gives me better endgame (and some way, it just looks as a stronger player's move). if someone disagree, i would love to hear (read) it

Diagram 1: i have a move "a" for future endgame, or black can defend at b (in gote)

Click Here To Show Diagram Code

[go]$$Bcm1 Diagram1
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . a b O . . . . . . . . . . . . . . |
$$ | . . . X O . X . . . . . . O . . . . . |
$$ | . . X , W X . . . O . . . . . X . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Diagram 2: this way i don't have so good endgame and only advantage is very improbable possibility of black playing 2 and me responding 1

Click Here To Show Diagram Code

[go]$$Bcm1 Diagram2
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . O . . . . . . . . . . . . . . |
$$ | . . 1 X O . X . . . . . . O . . . . . |
$$ | . . X W 2 X . . . O . . . . . X . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

all in all, i believe black's move was a mistake, because i consider his stones dead and will do my best preventing them from coming to life. and it also feels like ajikeshi, because that exchange would be sente anytime. although there is undeniably an aji at b M17. i am yet not sure how to answer if black plays it - w K17 would be safe but not ambitious, M16 more severe but more risky - will have to read it thoroughly

So, I said a little about this last move. I can jump ahead to keep my stones safe:

Click Here To Show Diagram Code

[go]$$Bcm1 Jump Out
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . 2 . O . . . . . . . . . . . . . . |
$$ | . . . X O . X . . . . . . O . . . . . |
$$ | . . X . W X . . . O . . . . . X . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . O . . 1 . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . 3 . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

This negates a lot of the strength of white's wall, but I lose the corner. I don't think I can hane, because:

Click Here To Show Diagram Code

[go]$$Bcm1 Can't Hane
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . O . . . . . . . . . . . . . . |
$$ | . 7 8 X O . X . . . . . . O . . . . . |
$$ | . 6 X . O X . . . O . . . . . X . . . |
$$ | . 4 X O . . . . . . . . . . . . . . . |
$$ | . 3 2 O . . . . . . . . . . . . X . . |
$$ | . 5 X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . 1 . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

After I extend on the left, it seems like white will spend a move to patch up the top.

Click Here To Show Diagram Code

[go]$$Wcm1 White extends
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . O . . . . . . . . . . 1 . . . |
$$ | . . . X O . X . . . . . . O . . . . . |
$$ | . . X . O X . . . O . . . . . X . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . O . . X . . a . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

White might also play at ''a'' to keep the pressure on those two stones. Now contrast that with:

Click Here To Show Diagram Code

[go]$$Bcm1 Take the corner
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . 1 O . . . . . . . . . . . . . . |
$$ | . . . X O . X . . . . . . O . . . . . |
$$ | . . X . W X . . . O . . . . . X . . . |
$$ | . . X O . . 2 . . . . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

After this, I have a nice big corner and I think it's safe to hane at the left later, if it's big to do so:

Click Here To Show Diagram Code

[go]$$Bcm1 Hane OK
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . 9 8 X O . . . . . . . . . . . . . . |
$$ | . 7 . X O . X . . . . . . O . . . . . |
$$ | . 6 X . O X . . . O . . . . . X . . . |
$$ | . 4 X O . . O . . . . . . . . . . . . |
$$ | . 3 2 O . . . . . . . . . . . . X . . |
$$ | . 5 X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . 1 . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

But the question is what to do about the two black stones that now look pretty dead. My instinct is to try something like this:

Click Here To Show Diagram Code

[go]$$Bcm1 Connect underneath
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X O . . . . . . . . . . . . . . |
$$ | . . . X O . X . 9 7 5 1 . O . . . . . |
$$ | . . X . O X . . 8 O 3 2 6 . . X . . . |
$$ | . . X O . . O . . . 4 . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

But this could get really complicated in a lot of ways. Just one example:

Click Here To Show Diagram Code

[go]$$Bcm1 Running fight
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X O . . . . . . . . . . . . . . |
$$ | . . . X O . X . . . 2 1 . O . . . . . |
$$ | . . X . O X . . . O . 3 . . . X . . . |
$$ | . . X O . . O . . . . . . 4 . . . . . |
$$ | . . . O . . . . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

After this it's a running fight. It's hard to say how much aji will be left in the two stones.

This is one of those tricky positional judgement / direction of play type problems that I don't seem to do very well at. So if anyone is watching let me ask a question (so I can see the answer at the end): how would you play here? Something I didn't even consider?

again i don't think black played the best possible move - as i mentioned in the previous post, my jump at C18 would be a big endgame, but still an endgame.

i was tempted to play the following sequence and finish the upper side but i don't want to give black sente to build something at the lower side. in the actual game, board should be divided into smaller parts which is advantageous for me

Click Here To Show Diagram Code

[go]$$Wcm1 Diagram1
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . O O . . . . . . . . . . 1 . . . |
$$ | . . . X O . X . . . . . . O . . 2 . . |
$$ | . . X . O X . . . O . . . . . X . . . |
$$ | . . X O . . . . . . . . . 3 . . . . . |
$$ | . . . O . . . . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

on the other hand, i have to consider black invasion at M17. in such case i plan to play sequence like the one showed below... i stay connected, black end up with a small group by the edge and hurt his own corner position

Click Here To Show Diagram Code

[go]$$Bcm1 Diagram2
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X O . . . . . 7 4 5 . . . . . . |
$$ | . . . X O . X . . 2 9 1 6 O . . . . . |
$$ | . . X . O X . . . O 0 8 . . . X . . . |
$$ | . . X O . . . . . . . 3 . . . . . . . |
$$ | . . . O . . . . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . W . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

I spent all that analysis assuming the top area was fairly urgent. well, I still think it is:

Click Here To Show Diagram Code

[go]$$Bcm1 Move #20
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X O . . . . . . . . . . . . . . |
$$ | . . . X O . X . . . . 3 . O . . . . . |
$$ | . . X . O X . . . O . . . . . X . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . . O . . 1 . . . . . . . . . X . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . X O . . . . . . . . . . . . . . . |
$$ | . . 2 . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . W . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

maybe i am wrong and this move is good for black, but in my opinion he is only getting deeper in the mud... black two stones were not clearly dead and surely not useless but i would use them as a source for aji (for example for the M17 invasion asi i wrote in previous post), this way i only get a target for attack. even if they escape, i should get enough influence as a compensation.

my response was almost without thinking, cap is a good attacking move and if black were to play G12 himself now, the situation would almost revert, because my 7 stones on the left would become too weak

note right before hitting submit: ok, maybe it is not _so_ bad, because black's M17 invasion is now again a bit more severe, but from black's previous moves i think he is more likely to run with his weak group

Click Here To Show Diagram Code

[go]$$Bcm1 Move #22
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X O . . . . . . . . . . . . . . |
$$ | . . . X O . X . . . . . . O . . . . . |
$$ | . . X . O X . . . O . . . . . X . . . |
$$ | . . X O . . . . 4 . . . . . . . . . . |
$$ | . . . O . . X . 2 1 . . . . . . X . . |
$$ | . . X O . . . 5 3 . . . . . . . . . . |
$$ | . . X O . . W . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . O . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

when seeing black's move, i had to admit that his stones hadn't been so hopeless. i can't say how easy will be his escape, but he has no really big formation in global, so i think i can win
his two space jump is quite vulnerable, maybe he should return now and fix it, probably with kosumi J13