Life In 19x19

Posted: **Mon Jan 15, 2018 3:32 pm**

Hi sorin, Thank you.

Posted: **Tue Jan 16, 2018 6:53 am**

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

I think White can play 1. If Black cuts, White still has the ko at 'a'.

Posted: **Tue Jan 16, 2018 7:12 am**

My blitz policy network's answer:

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

Spending a little more time to analyze the status of groups I also think a is rather large and probably double sente. If it's a local move I think about b rather than attach one line lower as that just prompts black to cut and then you want to both connect above and take the ko. 1 is not only an important local shape, those 2 stones do have an effect on the cutting points l9/k8 and thus the connectedness of white's 3 stones and the territory to their right.

Posted: **Tue Jan 16, 2018 11:27 am**

Problem 7:

White to play. Think twice, the next move could be decisive:

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

Posted: **Tue Jan 16, 2018 1:08 pm**

Connect below, black can escape with the 2 stones but you get a nice squeeze and give a good chase northwards, and the black lower left corner isn't alive yet which could come in handy for the white group on the lower side which is also not alive (so e.g. surrounding corner could be sente plus safety for that group). So probably black shouldn't escape. Cut on lower side later as a probe, I think black can block left and double hane but the aji is bad.

Posted: **Thu Jan 18, 2018 1:51 am**

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

B8 @ WW

White's stones flow naturally, Black's lump still has a lot of work to do.

Posted: **Thu Jan 18, 2018 3:57 am**

@Knotwilg:

Life In 19x19

A way to improve reading skills 2.0

Re: A way to improve reading skills 2.0

Re: A way to improve reading skills 2.0

Re: A way to improve reading skills 2.0

Re: A way to improve reading skills 2.0

Re: A way to improve reading skills 2.0

Re: A way to improve reading skills 2.0