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Offline Magicwand
 Post subject: L & D Series from cyberoro (1~4 Dan) problem #7
Post #1 Posted: Tue Aug 31, 2010 4:17 pm 
Tengen
User avatar

Posts: 4844
Location: Mechanicsburg, PA
Liked others: 62
Was liked: 505
Rank: Wbaduk 7D
KGS: magicwand
Tygem: magicwand
Wbaduk: rlatkfkd
DGS: magicwand
OGS: magicwand
black to play
find best attack on white.
Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O . |
$$ | . . . . . . . X O . O X . |
$$ | . . . . . . . X O . . O . |
$$ | . . . . . . . X X O . . . |
$$ ----------------------------[/go]

_________________
"The more we think we know about
The greater the unknown"
Words by neil peart, music by geddy lee and alex lifeson

This post by Magicwand was liked by: Kirby
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Offline Marcus
 Post subject: Re: L & D Series from cyberoro (1~4 Dan) problem #7
Post #2 Posted: Tue Aug 31, 2010 7:08 pm 
Gosei

Posts: 1387
Liked others: 139
Was liked: 111
GD Posts: 209
KGS: Marcus316
For some reason, this problem calls to me. Here's my shot at it:

Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O . |
$$ | . . . . . . . X O . O X . |
$$ | . . . . . . . X O . 1 O . |
$$ | . . . . . . . X X O . . . |
$$ ----------------------------[/go]


This looks cool.

Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O b |
$$ | . . . . . . . X S 3 O C 2 |
$$ | . . . . . . . X S 5 1 O . |
$$ | . . . . . . . X X O 4 a . |
$$ ----------------------------[/go]


And a and b are miai.

Let's see if I can find a stronger defense:

Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O . |
$$ | . . . . . . . X O . O X 3 |
$$ | . . . . . . . X O 2 1 O . |
$$ | . . . . . . . X X O 4 . . |
$$ ----------------------------[/go]


Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O 5 |
$$ | . . . . . . . X O a O X 3 |
$$ | . . . . . . . X O 2 C O b |
$$ | . . . . . . . X X O 4 . . |
$$ ----------------------------[/go]


We have miai again to kill.

Any other defenses?

Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O . |
$$ | . . . . . . . X O . O X 3 |
$$ | . . . . . . . X O . 1 O . |
$$ | . . . . . . . X X O 2 . . |
$$ ----------------------------[/go]


Back to the same as the previous defense. Guess this is my solution.
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Offline Kirby
 Post subject: Re: L & D Series from cyberoro (1~4 Dan) problem #7
Post #3 Posted: Tue Aug 31, 2010 7:11 pm 
Honinbo

Posts: 9545
Liked others: 1600
Was liked: 1711
KGS: Kirby
Tygem: 커비라고해
Marcus wrote:
For some reason, this problem calls to me. Here's my shot at it:

Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O . |
$$ | . . . . . . . X O . O X . |
$$ | . . . . . . . X O . 1 O . |
$$ | . . . . . . . X X O . . . |
$$ ----------------------------[/go]


This looks cool.

Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O b |
$$ | . . . . . . . X S 3 O C 2 |
$$ | . . . . . . . X S 5 1 O . |
$$ | . . . . . . . X X O 4 a . |
$$ ----------------------------[/go]


And a and b are miai.

Let's see if I can find a stronger defense:

Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O . |
$$ | . . . . . . . X O . O X 3 |
$$ | . . . . . . . X O 2 1 O . |
$$ | . . . . . . . X X O 4 . . |
$$ ----------------------------[/go]


Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O 5 |
$$ | . . . . . . . X O a O X 3 |
$$ | . . . . . . . X O 2 C O b |
$$ | . . . . . . . X X O 4 . . |
$$ ----------------------------[/go]


We have miai again to kill.

Any other defenses?

Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O . |
$$ | . . . . . . . X O . O X 3 |
$$ | . . . . . . . X O . 1 O . |
$$ | . . . . . . . X X O 2 . . |
$$ ----------------------------[/go]


Back to the same as the previous defense. Guess this is my solution.


One possibility from your variations - though I haven't solved the problem, yet:
Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O 4 |
$$ | . . . . . . . X O 3 O X 2 |
$$ | . . . . . . . X O . 1 O . |
$$ | . . . . . . . X X O . 5 6 |
$$ ----------------------------[/go]

_________________
be immersed
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 Profile  
 
Offline Marcus
 Post subject: Re: L & D Series from cyberoro (1~4 Dan) problem #7
Post #4 Posted: Tue Aug 31, 2010 7:18 pm 
Gosei

Posts: 1387
Liked others: 139
Was liked: 111
GD Posts: 209
KGS: Marcus316
Kirby wrote:
Marcus wrote:
For some reason, this problem calls to me. Here's my shot at it:

Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O . |
$$ | . . . . . . . X O . O X . |
$$ | . . . . . . . X O . 1 O . |
$$ | . . . . . . . X X O . . . |
$$ ----------------------------[/go]


This looks cool.

Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O b |
$$ | . . . . . . . X S 3 O C 2 |
$$ | . . . . . . . X S 5 1 O . |
$$ | . . . . . . . X X O 4 a . |
$$ ----------------------------[/go]


And a and b are miai.

Let's see if I can find a stronger defense:

Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O . |
$$ | . . . . . . . X O . O X 3 |
$$ | . . . . . . . X O 2 1 O . |
$$ | . . . . . . . X X O 4 . . |
$$ ----------------------------[/go]


Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O 5 |
$$ | . . . . . . . X O a O X 3 |
$$ | . . . . . . . X O 2 C O b |
$$ | . . . . . . . X X O 4 . . |
$$ ----------------------------[/go]


We have miai again to kill.

Any other defenses?

Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O . |
$$ | . . . . . . . X O . O X 3 |
$$ | . . . . . . . X O . 1 O . |
$$ | . . . . . . . X X O 2 . . |
$$ ----------------------------[/go]


Back to the same as the previous defense. Guess this is my solution.


One possibility from your variations - though I haven't solved the problem, yet:
Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O 4 |
$$ | . . . . . . . X O 3 O X 2 |
$$ | . . . . . . . X O . 1 O . |
$$ | . . . . . . . X X O . 5 6 |
$$ ----------------------------[/go]


I missed that. Black takes the ko first, too ... ah well. I just thought that was a cool spot to hit, and I'd be satisfied if I got this as Black in my own games. Now, to see who brings a better solution. :D
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Offline Magicwand
 Post subject: Re: L & D Series from cyberoro (1~4 Dan) problem #7
Post #5 Posted: Fri Sep 03, 2010 11:36 pm 
Tengen
User avatar

Posts: 4844
Location: Mechanicsburg, PA
Liked others: 62
Was liked: 505
Rank: Wbaduk 7D
KGS: magicwand
Tygem: magicwand
Wbaduk: rlatkfkd
DGS: magicwand
OGS: magicwand
this is the best variation black can have.
answer is KO.
Click Here To Show Diagram Code
[go]$$Bcm1 Prisoners: W=0, B=0
$$ -----------------------------
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . |
$$ | . . . . . . . . . . X X X |
$$ | . . . , . . . X X X O O 4 |
$$ | . . . . . . . X O 3 O X 2 |
$$ | . . . . . . . X O . 1 O . |
$$ | . . . . . . . X X O . 5 6 |
$$ ----------------------------[/go]

_________________
"The more we think we know about
The greater the unknown"
Words by neil peart, music by geddy lee and alex lifeson
Top
 Profile  
 
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