Life In 19x19

Posted: **Sun Sep 19, 2010 9:01 pm**

Problems from the Cotsen tournament, for all of you who could not make it:

Click Here To Show Diagram Code: [go]$$Bc Black to kill $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X X . . . . . . . . . . $$ | . O O X X . X . . . . . . $$ | . . . X O X . . . . . . . $$ | . . O O O O X X . . . . . $$ | . . . . . . . . . . . . . $$ |--------------------------[/go]

Posted: **Sun Sep 19, 2010 9:25 pm**

Best i can see is ko

Click Here To Show Diagram Code: [go]$$Bc Black to kill(ko) $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X X . . . . . . . . . . $$ | 5 O O X X . X . . . . . . $$ | . 1 4 X O X . . . . . . . $$ | 3 2 O O O O X X . . . . . $$ | . . . . . . . . . . . . . $$ |--------------------------[/go]

Click Here To Show Diagram Code: [go]$$Bc Black to kill $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X X . . . . . . . . . . $$ | 5 O O X X . X . . . . . . $$ | 2 1 6 X O X . . . . . . . $$ | 3 4 O O O O X X . . . . . $$ | . . . . . . . . . . . . . $$ |--------------------------[/go]

=

Click Here To Show Diagram Code: [go]$$Bc Black to kill(ko) $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X X . . . . . . . . . . $$ | 3 O O X X . X . . . . . . $$ | . 1 2 X O X . . . . . . . $$ | 5 4 O O O O X X . . . . . $$ | . . . . . . . . . . . . . $$ |--------------------------[/go]

Posted: **Sun Sep 19, 2010 11:03 pm**

kokomi wrote:Best i can see is ko...

An unconditional kill is possible.

Posted: **Mon Sep 20, 2010 4:27 am**

Posted: **Mon Sep 20, 2010 5:35 am**

kokomi wrote:
Best i can see is ko

$$Bc Black to kill(ko)
$$ | . . . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . X . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . X X . . . . . . . . . .
$$ | 5 O O X X . X . . . . . .
$$ | . 1 4 X O X . . . . . . .
$$ | 3 2 O O O O X X . . . . .
$$ | . . . . . . . . . . . . .
$$ |--------------------------

Click Here To Show Diagram Code
[go]$$Bc Black to kill(ko) $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X X . . . . . . . . . . $$ | 5 O O X X . X . . . . . . $$ | . 1 4 X O X . . . . . . . $$ | 3 2 O O O O X X . . . . . $$ | . . . . . . . . . . . . . $$ |--------------------------[/go]

$$Bc Black to kill
$$ | . . . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . X . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . X X . . . . . . . . . .
$$ | 5 O O X X . X . . . . . .
$$ | 2 1 6 X O X . . . . . . .
$$ | 3 4 O O O O X X . . . . .
$$ | . . . . . . . . . . . . .
$$ |--------------------------

Click Here To Show Diagram Code
[go]$$Bc Black to kill $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X X . . . . . . . . . . $$ | 5 O O X X . X . . . . . . $$ | 2 1 6 X O X . . . . . . . $$ | 3 4 O O O O X X . . . . . $$ | . . . . . . . . . . . . . $$ |--------------------------[/go]

=

$$Bc Black to kill(ko)
$$ | . . . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . X . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . X X . . . . . . . . . .
$$ | 3 O O X X . X . . . . . .
$$ | . 1 2 X O X . . . . . . .
$$ | 5 4 O O O O X X . . . . .
$$ | . . . . . . . . . . . . .
$$ |--------------------------

Click Here To Show Diagram Code
[go]$$Bc Black to kill(ko) $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X X . . . . . . . . . . $$ | 3 O O X X . X . . . . . . $$ | . 1 2 X O X . . . . . . . $$ | 5 4 O O O O X X . . . . . $$ | . . . . . . . . . . . . . $$ |--------------------------[/go]

Posted: **Mon Sep 20, 2010 6:43 am**

Sverre wrote:
$$Bc This was hard; is this right?
$$ | . . . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . X . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . X X . . . . . . . . . .
$$ | 7 O O X X . X . . . . . .
$$ | 8 2 4 X O X . . . . . . .
$$ | 1 3 O O O O X X . . . . .
$$ | . 6 . . 9 5 . . . . . . .
$$ |--------------------------

Click Here To Show Diagram Code
[go]$$Bc This was hard; is this right? $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X X . . . . . . . . . . $$ | 7 O O X X . X . . . . . . $$ | 8 2 4 X O X . . . . . . . $$ | 1 3 O O O O X X . . . . . $$ | . 6 . . 9 5 . . . . . . . $$ |--------------------------[/go]

if answer of 1 is to play at 8, the same position with zinger's post

Posted: **Mon Sep 20, 2010 8:05 am**

Mehmet wrote:
Sverre wrote:
$$Bc This was hard; is this right?
$$ | . . . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . X . . . . . . . . . . .
$$ | . . . . . . . . . . . . .
$$ | . X X . . . . . . . . . .
$$ | 7 O O X X . X . . . . . .
$$ | 8 2 4 X O X . . . . . . .
$$ | 1 3 O O O O X X . . . . .
$$ | . 6 . . 9 5 . . . . . . .
$$ |--------------------------

Click Here To Show Diagram Code
[go]$$Bc This was hard; is this right? $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X . . . . . . . . . . . $$ | . . . . . . . . . . . . . $$ | . X X . . . . . . . . . . $$ | 7 O O X X . X . . . . . . $$ | 8 2 4 X O X . . . . . . . $$ | 1 3 O O O O X X . . . . . $$ | . 6 . . 9 5 . . . . . . . $$ |--------------------------[/go]

if answer of 1 is to play at 8, the same position with zinger's post

i want you to look at it again. i think his answer is correct

at

Posted: **Mon Sep 20, 2010 2:58 pm**

Nobody has posted this amusing variation.

[sgf-full](
;
FF[1]
GM[1]
SZ[19]
AP[Jago:Version 5.0]
AW[cr][dr][er][fr][eq][cp][bp]
AB[bo][co][dp][ep][dq][fq][gp][gr][hr][bm]
;
B[ar]
;
W[bq]
;
B[ap]
;
W[aq]
;
B[br]
;
W[cq]
;
B[fs]
;
W[es]
;
B[cs]
;
W[gs]
;
B[bs]
;
W[ao]
;
B[as]
)[/sgf-full]

Posted: **Wed Sep 22, 2010 12:13 pm**

I love move 13 there.

Posted: **Tue Sep 28, 2010 4:13 am**

Bill Spight wrote:Nobody has posted this amusing variation.

Good variation of damezumeri.

Life In 19x19

Problem of the day ( 1Dan - 3Dan ) - Sept 19th, 2010

Problem of the day ( 1Dan - 3Dan ) - Sept 19th, 2010

Re: Problem of the day ( 1Dan - 3Dan ) - Sept 19th, 2010

Re: Problem of the day ( 1Dan - 3Dan ) - Sept 19th, 2010

Re: Problem of the day ( 1Dan - 3Dan ) - Sept 19th, 2010

Re: Problem of the day ( 1Dan - 3Dan ) - Sept 19th, 2010

Re: Problem of the day ( 1Dan - 3Dan ) - Sept 19th, 2010

Re: Problem of the day ( 1Dan - 3Dan ) - Sept 19th, 2010

Re: Problem of the day ( 1Dan - 3Dan ) - Sept 19th, 2010

Re: Problem of the day ( 1Dan - 3Dan ) - Sept 19th, 2010

Re: Problem of the day ( 1Dan - 3Dan ) - Sept 19th, 2010