[go]$$Wcm88 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . . O X . . . | $$ | . . O . . O . . . . . . . . O O X . . | $$ | . . . O . . . . . . . . . . . . 1 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
Super smart mode ... ACTIVATED! Why make life when one can tenuki? The only challenging variation is this:
[go]$$Bc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . . O X . . . | $$ | . . O . . O . . . . . . . . O O X . . | $$ | . . . O . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . 4 5 O O . | $$ | . . . . . . O . . X . . . O 3 O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X 1 . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . 2 . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Wcm6 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . . O X . . . | $$ | . . O . . O . . . . . . . . O O X . . | $$ | . . . O . . . . . . . . . . . . W . . | $$ | . . . . . . . . . . . . . . . . . 5 . | $$ | . . . , . . . . . , . . . . . X X 4 . | $$ | . . . . . . . . . . . . . 3 O X O O . | $$ | . . . . . . O . . X . . . O X O 1 . . | $$ | . . . . . . . . . . . . O . 2 . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X X . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . O . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
Thanks to the marked White stone, White wins this capturing race. Nice ... I hope it works.
_________________ Ontological imperative holds that my losses occurred only in imagination.
[go]$$Wcm88 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . . O X . . . | $$ | . . O . . O . . . . . . . . O O X 2 . | $$ | . . . O . . . . . . . . . . . . 1 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
I've not read this out fully, but it's hard for White to cut off here without inviting a fight back, and as I'm sort of eyeing up that stone collection up there I may as well encourage White to get all messy with things.
[go]$$Wcm90 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . . O X . . . | $$ | . . O . . O . . . . . . . . O O X X . | $$ | . . . O . . . . . . . . . . . . O 1 . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
The two Black stones are essentially captured. It would be very risky for Black to try to run with them without additional Black presence in the center. Also, the weakness at P8 is now much less threatening.
Currently, Black is behind in the game by a big margin. For topazg to make a comeback, he needs to make something massive happen inside of White's moyo on the left. If Black does the invasion at E12, I intend to sacrifice the C13 stone in exchange for sente (to possibly attack the lone Black stone in the middle of the board:
[go]$$Bc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . . O X . . . | $$ | . . O 3 2 O . . . . . . . . O O X X . | $$ | . 9 7 O 1 . . . . . . . . . . . O O . | $$ | . 0 8 4 5 . . . . . . . . . . . . . . | $$ | . . . , 6 . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Bcm11 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . . O X . . . | $$ | . 1 O X O O . . . . . . . . O O X X . | $$ | . X X O X . . . . . . . . . . . O O . | $$ | . O O O X . . . . . . . . . . . . . . | $$ | . . . , O . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . 2 . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
_________________ Ontological imperative holds that my losses occurred only in imagination.
[go]$$Wcm90 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . . O X . . . | $$ | . . O . . O . . . . . . . . O O X X . | $$ | . . . O . . . . . . . . . . . 2 O 1 . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Wcm92 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . . O X . . . | $$ | . . O . . O . . . . . . . . O O X X . | $$ | . . . O . . . . . . . . . . 1 X O O . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Bc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . 3 O X . . . | $$ | . . O . . O . . . . . . . . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . 1 . . 2 | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
I spent quite a bit of time trying to analyze the consequences of this cut. I also considered whether it makes sense to let Black rescue his group on the left in exchange for protecting the cut. It doesn't. The difference in points between the two outcomes is simply too great to choose the safer variation.
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . 0 . O X . . | $$ | . . . X . O X . O X X . 9 8 O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . . O X . . . | $$ | . . O . . O . . . . . . . . O O X X . | $$ | . . . O . . . . . . . . . 1 3 X O O . | $$ | . . . . . . . . . . . . . . . 4 2 6 . | $$ | . . . , . . . . . , . . . . . X X 5 . | $$ | . . . . . . . . . . . . . . 7 . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Wcm11 Outcome 1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . X . O X . . | $$ | . . . X . O X . O X X . O X O X X . . | $$ | . . . X O . . . O . . 1 . O X X X . . | $$ | . . . X . . . . . O . . . . O X . . . | $$ | . . O . . O . . . . . . . . O O X X . | $$ | . . . O 2 . . . . . . . . O O X O O . | $$ | . . . . . . . . . . . . . . . X X X . | $$ | . . . , . . . . . , . . . . . X X O . | $$ | . . . . . . . . . . . . . . O . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Wc Outcome 2 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X 6 8 . O X X . . | $$ | . . . X O . . . O . . 5 4 O X X X . . | $$ | . . . X . . . . . O . 3 2 X O X . . . | $$ | . . O . . O . . . . . . 1 7 O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . 9 . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
Besides, I might actually be able to get away with playing this in response to the cut:
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . 5 . 1 O X X X . . | $$ | . . . X . . . . . O . . . X O X . . . | $$ | . . O . . O . . . . . 4 2 . O O X X . | $$ | . . . O . . . . . . . . 3 . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
I'm not completely sure that this works in all the lines, yet, but let's see if topazg actually cuts at O14 or not. If he does, I'll refine my calculations accordingly.
_________________ Ontological imperative holds that my losses occurred only in imagination.
[go]$$Wcm92 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . . O X . . . | $$ | . . O . . O . . . . . . . . O O X X . | $$ | . . . O . . . . . . . . . . 1 X O O . | $$ | . . . . . . . . . . . . . . . 2 . . . | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Wcm94 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . . O X . . . | $$ | . . O . . O . . . . . . . . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . 1 | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
So far as expected. Now, to cut or not to cut?
_________________ Ontological imperative holds that my losses occurred only in imagination.
[go]$$Wcm94 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . 2 O X . . . | $$ | . . O . . O . . . . . . . . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . 1 | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Wcm94 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . 2 W X . . . | $$ | . . O . . O . . . . . . . . W W X X . | $$ | . . . O . . . . . . . . . . W X O O . | $$ | . . . . . . . . . . . . . . . X . . 1 | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . a . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X b . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
Some thinking and reading behind this, but this feels like the right cut to make. I now need to consider the best way forward from here. The marked white stones are an obvious target, but claiming the top is still a real coup. So White has to carefully manage both, and I have a lot of aji to exploit. Unfortunately "a" is not a threat because even if I connect I have no eyes, and "b" means there isn't really a capturing race. However:
[go]$$Wcm94 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . 3 O X X X . . | $$ | . . . X . . . . . O . . . 2 O X . . . | $$ | . . O . . O . . . . . . 4 . O O X X . | $$ | . . . O . . . . . . . . 5 6 O X O O . | $$ | . . . . . . . . . . . . . . . X . . 1 | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
means that standard sorts of tesujis like don't work, and I'm more than happy sac'ing those 4 for a big wall. Of course, if "a" in the first dia was an actual threat, then this would capture, but you can't have everything.
The game doesn't look great to be honest if I fail to get something here. It's not a complete disaster, but I'm behind. I don't know what I was thinking with that group in the lower right before I went AWOL, but it wasn't clever thoughts.
It looks like I'm fine if I meet topazg head on and launch an attack against his cutting stone (although I still have one variation that I haven't quite worked out, yet). However, my dilemma is this. If I enter the complications and my reading is sound, the game will be effectively over because Black will be too far behind to have any chance of catching up. If my reading is not sound, though, I risk suffering a big loss, making the game close again, or even reversing the game in Black's favor. On the other hand, if I choose to play safely, letting Black capture the stones at the top in exchange for solidifying the center, I will still be winning, but Black will have caught up point-wise somewhat. As such, the game would go on for some time longer, and Black could still harbor hopes of reversing the game.
Given this dilemma, here's what I'll do. I'll take some time off to rest. Then, with a clear head, I will revisit the variations below. If I find no fault in my current reading and if I manage to work out the one remaining variation, I'll play the principled (riskier) move.
Incidentally, if any of you sees an error in any of the diagrams below, send me a PM with all the pertinent analysis ... just kidding.
1. The safer option, variation 1: White stones get captured, but Black is left with very little aji to exploit in the center
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . 2 O X X X . . | $$ | . . . X . . . . . O . . 3 X O X . . . | $$ | . . O . . O . . . . . . 1 . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Bcm4 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X 3 . 1 O X X . . | $$ | . . . X O . . . O . . 2 X C X X X . . | $$ | . . . X . . . . . O . . O X O X . . . | $$ | . . O . . O . . . . . . O . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . 6 . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . 4 . 5 . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
2. The safer option, variation 2: White gets ko for life, but probably can't win the ko
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . 9 . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X 7 . . O X X . . | $$ | . . . X O . . . O . 5 6 3 O X X X . . | $$ | . . . X . . . . . O . 4 2 X O X . . . | $$ | . . O . . O . . . . . 8 1 . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Bcm10 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X 1 O . . . 4 3 . . . | $$ | . . . . . X X . X C X O . 2 . O X . . | $$ | . . . X . O X . O X X O . . O X X . . | $$ | . . . X O . . . O . O X O O X X X . . | $$ | . . . X . . . . . O . X X X O X . . . | $$ | . . O . . O . . . . . X O . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
3. The safer option, variation 3: White again gives up on the stones at the top, but Black has more aji than in variation 1, if White tenukis
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X 6 . . O X X . . | $$ | . . . X O . . . O . . 5 4 O X X X . . | $$ | . . . X . . . . . O . 3 2 X O X . . . | $$ | . . O . . O . . . . . M 1 . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . 9 . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . 7 . 8 . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
4. The riskier option, variation 1: White top-right group escapes to the outside while Black cutting stones are in danger
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . 7 1 O X X X . . | $$ | . . . X . . . . . O . 4 6 X O X . . . | $$ | . . O . . O . . . . . 5 . 2 O O X X . | $$ | . . . O . . . . . . . . . 3 O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Bcm8 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . a O O O X X X . . | $$ | . . . X . . . . . O 2 X X X O X . . . | $$ | . . O . . O . . . . . O 3 X O O X X . | $$ | . . . O . . . . . . . 5 1 O O X O O . | $$ | . . . . . . . . . . b . 4 6 . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
Next, "a" and "b" are miai for White.
5. The riskier option, variation 2: White prevails with a similar result to variation 1
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . 7 1 O X X X . . | $$ | . . . X . . . . . O . 3 2 X O X . . . | $$ | . . O . . O . . . . . 6 . . O O X X . | $$ | . . . O . . . . . . . . . 4 O X O O . | $$ | . . . . . . . . . . . . . . 5 X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
6. The riskier option, variation 3: White's top-right group gets cut off from the center, but makes life while Black cutting group remains weak
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . 9 . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X 7 . . O X X . . | $$ | . . . X O . . . O . 5 6 1 O X X X . . | $$ | . . . X . . . . . O . 8 . X O X . . . | $$ | . . O . . O . . . . . 4 2 . O O X X . | $$ | . . . O . . . . . . . . 3 . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Bcm10 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X 1 O . . . . . . . . | $$ | . . . . . X X . X 3 X O . . 4 O X . . | $$ | . . . X . O X . O X X O . . O X X . . | $$ | . . . X O . . . O 2 O X O O X X X . . | $$ | . . . X . . . . . O . X ? X O X . . . | $$ | . . O . . O . . . . . X X . O O X X . | $$ | . . . O . . . . . . . . O . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
Notice the highlighted liberty. Without it, White would only have a ko (as shown before). Without this liberty, Black kills as follows:
[go]$$Bc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X X O 1 . 5 . . . . . | $$ | . . . . . X X . X X X O 2 . O O X . . | $$ | . . . X . O X . O X X O 4 3 O X X . . | $$ | . . . X O . . . O O O X O O X X X . . | $$ | . . . X . . . . . O . X B X O X . . . | $$ | . . O . . O . . . . . X X . O O X X . | $$ | . . . O . . . . . . . . O . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
7. The riskier option, variation 4: the remaining variation I have yet to work out, but White seems to prevail
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . 1 O X X X . . | $$ | . . . X . . . . . O . . . X O X . . . | $$ | . . O . . O . . . . . . 2 . O O X X . | $$ | . . . O . . . . . . . . 3 . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . 7 . O O X X X . . | $$ | . . . X . . . . . O . . . X O X . . . | $$ | . . O . . O . . . . . 6 X . O O X X . | $$ | . . . O . . . . . . . 4 O 5 O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . O O X X X . . | $$ | . . . X . . . . . O . . . X O X . . . | $$ | . . O . . O . . . . . 7 X . O O X X . | $$ | . . . O . . . . . . . 6 O 4 O X O O . | $$ | . . . . . . . . . . . . . . 5 X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
This position is still unclear to me, but White ought to fine here.
_________________ Ontological imperative holds that my losses occurred only in imagination.
[go]$$Wcm96 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . . X O X . . . | $$ | . . O . . O . . . . . . 1 . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
In the end, I had to reject the more agressive approach because of the following:
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . 5 3 1 O X X X . . | $$ | . . . X . . . . . O . 4 2 X O X . . . | $$ | . . O . . O . . . . . . . . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . 6 . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . 8 O O X X X . . | $$ | . . . X . . . . . O . 3 X X O X . . . | $$ | . . O . . O . . . . . . . . O O X X . | $$ | . . . O . . . . . . . . . 4 O X O O . | $$ | . . . . . . . . . . . . . 6 5 X . . O | $$ | . . . , . . . . . , . . . . 7 X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
Thankfully, I found this variation in time. Taking another look at the position with rested eyes proved to be an excellent idea.
I took additional time to think, however, because I discovered another way for White to play here:
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . . O X X X . . | $$ | . . . X . . . . . O . . 1 X O X . . . | $$ | . . O . . O . . . . . 6 4 2 O O X X . | $$ | . . . O . . . . . . . . 5 3 O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . 7 8 . O X X X . . | $$ | . . . X . . . . . O . . O X O X . . . | $$ | . . O . . O . . . . . X X X O O X X . | $$ | . . . O . . . . . . . . O O O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
[go]$$Wcm7 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X 7 . 6 O X X . . | $$ | . . . X O . . . O . . 5 4 O X X X . . | $$ | . . . X . . . . . O . 1 O X O X . . . | $$ | . . O . . O . . . . . X X X O O X X . | $$ | . . . O . . . . . . . 2 O O O X O O . | $$ | . . . . . . . . . . . 3 . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
However, Black has sente in this variation. Plus, Black has additional support (in the form of the marked Black stones) for an invasion into Whtie's moyo. In particular, I was worried about Black playing something like this:
[go]$$Bcm14 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X O . X O X X . . | $$ | . . . X O . . . O . . O X . X X X . . | $$ | . . . X . . . . . O . O O X O X . . . | $$ | . . O . . O . . . . . B X X O O X X . | $$ | . . . O . . . . . . . B O O O X O O . | $$ | . . . . . 1 . . . . . O . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
_________________ Ontological imperative holds that my losses occurred only in imagination.
[go]$$Wcm96 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . 2 O X X X . . | $$ | . . . X . . . . . O . . . X O X . . . | $$ | . . O . . O . . . . . . 1 . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
Ok, lots of points up here. That's something at least ... still not ready to count just now.
[go]$$Wcm98 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . 2 O X X . . | $$ | . . . X O . . . O . . . X C X X X . . | $$ | . . . X . . . . . O . . 1 X O X . . . | $$ | . . O . . O . . . . . . O . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . 3 . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
I think topazg could have gotten away with N14. If he played there, I was going to check once more whether or not I could respond with N15, but I don't think it works.
[go]$$Bc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . . O X X . . | $$ | . . . X O . . . O . . . 2 O X X X . . | $$ | . . . X . . . . . O . 3 1 X O X . . . | $$ | . . O . . O . . . . . . O . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
As for the move in the game, I thought about playing at H6 first, but I couldn't convince myself that this move is sente. This will cost me some points if Black plays at G6 next, but I should still be ahead by 10 points or so.
_________________ Ontological imperative holds that my losses occurred only in imagination.
[go]$$Wcm98 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . 2 O X X . . | $$ | . . . X O . . . O . . . X C X X X . . | $$ | . . . X . . . . . O . . 1 X O X . . . | $$ | . . O . . O . 4 . . . . O . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . 3 . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
A bit loose, but I want to see how he responds. I have lots of aji to aim for here..
[go]$$Wcm98 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . 2 O X X . . | $$ | . . . X O . . . O . . . X C X X X . . | $$ | . x . X . . . . . O . . 1 X O X . . . | $$ | . . O . . O . a . . . . O . O O X X . | $$ | . . . O b . . . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . d . . . 3 . . . . . O O . | $$ | . . . . . . O . . X . c . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O z . . . . . X O X . X e . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | y . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
"x-z" are endgame points that interest me. "a-e" points are interesting areas that make me giggle.
I'll happily explain the reasoning behind any if asked
[go]$$Wcm102 Prisoners: $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . X O X X . . | $$ | . . . X O . . . O . . . X . X X X . . | $$ | . . . X . . . . . O . . O X O X . . . | $$ | . . O . . O . X . . . . O . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . 1 . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . O . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
When I was previously estimating territory, I was not counting the marked intersections:
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . X O X X . . | $$ | . . . X O . . . O . . . X . X X X . . | $$ | . . . X . . ? ? ? O . . O X O X . . . | $$ | . . O . . O ? B ? . . . O . O O X X . | $$ | . . . O . . ? ? ? . . . . . O X O O . | $$ | . . . . . . ? ? ? . . . . . . X . . O | $$ | . . . , . . ? ? ? , . . . . . X X . . | $$ | . . . . . . ? ? ? . O . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
As such, topazg's last move might prove to be dame and, if that were not enough, it lets me reinforce a serious weakness in my moyo on the left side.
Instead of in the game, I also considered the following move, with the idea to ward against the invasion at "a" more forcefully:
[go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . X O X X . . | $$ | . . . X O . . . O . . . X . X X X . . | $$ | . . . X . . . . . O . . O X O X . . . | $$ | . . O . . O . X . . . . O . O O X X . | $$ | . . . O a . 1 . . . . . . . O X O O . | $$ | . . . . . . . . . . . . . . . X . . O | $$ | . . . , . . b . . , . . . . . X X . . | $$ | . . . . . . . . . . O . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
However, it looks like I can meet the invasion at "a" after the move in the game adequately well, too, while also enjoying the benefit of having largely eliminated the weakness at "b."
I also looked at whether Black has anything after , but it does not look like he does:
[go]$$Bc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . X . . . . . . . . . . | $$ | . . . . . X X . X O X O . . . O X . . | $$ | . . . X . O X . O X X . . X O X X . . | $$ | . . . X O . . . O . . . X . X X X . . | $$ | . . . X . . . . . O 1 . O X O X . . . | $$ | . . O . . O . X 4 3 2 . O . O O X X . | $$ | . . . O . . . . . . . . . . O X O O . | $$ | . . . . . . O . . . . . . . . X . . O | $$ | . . . , . . . . . , . . . . . X X . . | $$ | . . . . . . . . . . O . . . . . O O . | $$ | . . . . . . O . . X . . . O . O . . . | $$ | . . . . . . . . . . . . O . . . X O . | $$ | . . . . . . . . . . . . O X . X . O . | $$ | . O O O O . . . . . . X O X . X . . . | $$ | O X X X O X . . . , X . X O . O X X . | $$ | . O X O X . . . . . . X X O . O O X . | $$ | . . X . X . . . . . . . . . . . O O X | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
Given this, I'm rather curious what topazg's followup to his last move will be.
_________________ Ontological imperative holds that my losses occurred only in imagination.
Posts: 4511 Location: Chatteris, UK Liked others: 1589 Was liked: 656
Rank: Nebulous
GD Posts: 918
KGS: topazg
Gosh, I'd forgotten all about this game. I must admit, it does look rather bad for me. Without a very large rip-off I seem to be in a spot of trouble, so I think I shall resign here rather than drag it out further...
If anyone wants to play a game with me, I'm planning on being around a little bit more, so just send me a PM
Thanks for the game, topazg! I haven't looked at this game (or at Go in general) for awhile myself. From what I remember, though, the game got decided on the bottom-right side of the board. I think I was in the lead slightly beforehand (probably by about a komi), but then you started losing some stones out there. I'll read your hidden comments at some point, so hopefully I'll find out what you missed. It should be interesting to read the hidden comments from the observers, too. Given the opening moves and given how I played in the top-right, I bet there will be some interesting comments.
_________________ Ontological imperative holds that my losses occurred only in imagination.
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