Life In 19x19 :: tesuji question

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

the recommended move in this position is b1.
then white follows d2, then black c1, then white a2 then black b3,
then white is forced b4, then black h2, white j2 and finally black h1, securing his group.

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

my question is, instead of 2 at d2,
how about at b3?

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

now white still only has one eye and i don t see a good way of making a second.
for example

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

here how can black force two eyes?

Author:	ez4u [ Thu Mar 26, 2020 2:37 pm ]
Post subject:	Re: tesuji question
phillip1882 wrote: Click Here To Show Diagram Code `[go]$$B $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . O . . . . . . . . . . . . , . . . \| $$ \| . . . . . O . O . . . . . . . . . . . \| $$ \| . . O O . . . . . . . . . . . . . . . \| $$ \| . . O X X X . O . . . . . . . . . . . \| $$ \| . O X . O X . . . . . . . . . . . . . \| $$ \| . . . . . . . . . . . . . . . . . . . \| $$ ---------------------------------------[/go]` the recommended move in this position is b1. then white follows d2, then black c1, then white a2 then black b3, then white is forced b4, then black h2, white j2 and finally black h1, securing his group. Click Here To Show Diagram Code `[go]$$B $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . O . . . . . . . . . . . . , . . . \| $$ \| . . . . . O . O . . . . . . . . . . . \| $$ \| . 6 O O . . . . . . . . . . . . . . . \| $$ \| . 5 O X X X . O . . . . . . . . . . . \| $$ \| 4 O X 2 O X . 7 8 . . . . . . . . . . \| $$ \| . 1 3 . . . . 9 . . . . . . . . . . . \| $$ ---------------------------------------[/go]` my question is, instead of 2 at d2, how about at b3? Click Here To Show Diagram Code `[go]$$B $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . O . . . . . . . . . . . . , . . . \| $$ \| . . . . . O . O . . . . . . . . . . . \| $$ \| . . O O . . . . . . . . . . . . . . . \| $$ \| . 2 O X X X . O . . . . . . . . . . . \| $$ \| . O X . O X . . . . . . . . . . . . . \| $$ \| . 1 . . . . . . . . . . . . . . . . . \| $$ ---------------------------------------[/go]` now white still only has one eye and i don t see a good way of making a second. for example Click Here To Show Diagram Code `[go]$$B $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . O . . . . . . . . . . . . , . . . \| $$ \| . . . . . O . O . . . . . . . . . . . \| $$ \| . . O O . . . . . . . . . . . . . . . \| $$ \| . O O X X X . O . . . . . . . . . . . \| $$ \| . O X . O X . 1 2 . . . . . . . . . . \| $$ \| . X . . . 4 . 3 . . . . . . . . . . . \| $$ ---------------------------------------[/go]` here how can black force two eyes? Click Here To Show Diagram Code `[go]$$B $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . . . . . . . . . . . . . . . . . . \| $$ \| . . O . . . . . . . . . . . . , . . . \| $$ \| . . . . . O . O . . . . . . . . . . . \| $$ \| . . O O . . . . . . . . . . . . . . . \| $$ \| . O O X X X 5 O a . . . . . . . . . . \| $$ \| . O X . O X . 1 2 . . . . . . . . . . \| $$ \| . X . . . 4 . 3 . . . . . . . . . . . \| $$ ---------------------------------------[/go]` is the perhaps the most thematic play, since Black tries to create the largest internal space. We have to notice that the play also threatens to atari at "a" and capture . Can you read out how things might developed from here?

Author:	phillip1882 [ Thu Mar 26, 2020 2:41 pm ]
Post subject:	Re: tesuji question
thanks the problem was bugging the hell out of me.

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