It is currently Tue Jan 28, 2020 7:30 pm

All times are UTC - 8 hours [ DST ]




Post new topic Reply to topic  [ 5 posts ] 
Author Message
Offline
 Post subject: White to kill
Post #1 Posted: Tue Jan 14, 2020 4:24 pm 
Gosei

Posts: 1449
Location: Earth
Liked others: 545
Was liked: 231
White to continue and kill the lower left:
Or not?
Click Here To Show Diagram Code
[go]$$W
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . O . . . . . |
$$ | . . O X X . . X . . . . O . O . . . . |
$$ | . . X O O X . . O . O . . O X O O . . |
$$ | . . O O . X . . . O . X X O X X O . . |
$$ | . . . . . . . . X O X . . X X X X O . |
$$ | . . O . . X . X . O O X X O . X O X . |
$$ | . . . . . . . . O O X X . . . X . . . |
$$ | . . . . . O X X O X . X . O O X . . . |
$$ | . . O O . O O X X . X . . . X . X . . |
$$ | . . O X O . . O X X X . O O X X . O . |
$$ | . . O X O X . O . O . X . X O X O . . |
$$ | . . O X X O . . . O O O X X O O O . O |
$$ | . X O X 1 . . O . X O O O X O . . O X |
$$ | . . X 2 . . . O X . X O X X O X O X X |
$$ | . . . X X X . O . . . X . X O . O O X |
$$ | . . . , O X O . . , . . X O O , O X X |
$$ | . X X O . O X X X X X . X X X X X X . |
$$ | . O O . . . O O O O . . X O X . . . . |
$$ | . . . . . . . . . . . O O . . . . . . |
$$ +---------------------------------------+[/go]

Top
 Profile  
 
Offline
 Post subject: Re: White to kill
Post #2 Posted: Tue Jan 14, 2020 5:56 pm 
Judan

Posts: 6301
Location: Cambridge, UK
Liked others: 362
Was liked: 3426
Rank: UK 4 dan
KGS: Uberdude 4d
OGS: Uberdude 7d
3 is shape intuition and seems to kill. Black can make one eye in sente in centre with a-f. 7 is the key move, my first idea (actually before that was C4 before I noticed 4 sente) was hane A3 but that's a mistake as it allows a6 sente to make the second eye
Click Here To Show Diagram Code
[go]$$Wc
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . O . . . . . |
$$ | . . O X X . . X . . . . O . O . . . . |
$$ | . . X O O X . . O . O . . O X O O . . |
$$ | . . O O . X . . . O . X X O X X O . . |
$$ | . . . . . . . . X O X . . X X X X O . |
$$ | . . O . . X . X . O O X X O . X O X . |
$$ | . . . . . . . . O O X X . . . X . . . |
$$ | . . . . . O X X O X . X . O O X . . . |
$$ | . . O O . O O X X . X . . . X . X . . |
$$ | . . O X O . . O X X X . O O X X . O . |
$$ | . . O X O X . O . O . X . X O X O . . |
$$ | . . O X X O b . . O O O X X O O O . O |
$$ | . X O X 1 a . O . X O O O X O . . O X |
$$ | . 6 X 2 f . e O X . X O X X O X O X X |
$$ | . 3 . X X X c O . . . X . X O . O O X |
$$ | 7 . . 4 O X O d . , . . X O O , O X X |
$$ | . X X O 5 O X X X X X . X X X X X X . |
$$ | . O O . . . O O O O . . X O X . . . . |
$$ | . . . . . . . . . . . O O . . . . . . |
$$ +---------------------------------------+[/go]


This post by Uberdude was liked by: Gomoto
Top
 Profile  
 
Offline
 Post subject: Re: White to kill
Post #3 Posted: Tue Jan 14, 2020 6:26 pm 
Honinbo

Posts: 8840
Liked others: 1503
Was liked: 1509
KGS: Kirby
Tygem: 커비라고해
The sequence I thought of was similar to Uberdude’s, except a little bit worse: I had :w7: at b4 instead of a4. But it doesn’t work since black can use a6 on sente..

_________________
be immersed


This post by Kirby was liked by: Gomoto
Top
 Profile  
 
Offline
 Post subject: Re: White to kill
Post #4 Posted: Tue Jan 14, 2020 6:58 pm 
Honinbo

Posts: 9364
Liked others: 2916
Was liked: 3143
I did not see how Black to play could kill White. :oops: :lol:

_________________
The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins


This post by Bill Spight was liked by 2 people: Gomoto, xela
Top
 Profile  
 
Offline
 Post subject: Re: White to kill
Post #5 Posted: Tue Jan 14, 2020 7:02 pm 
Honinbo

Posts: 9364
Liked others: 2916
Was liked: 3143
Uberdude wrote:
3 is shape intuition and send to kill. Black can make eye in sente in centre with a-f. 7 is the key move, my first idea (actually before that was C4 before I noticed 4 sente) was hane A3 but that's a mistake as it allows a5 sente to make the second eye
Click Here To Show Diagram Code
[go]$$Wc
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . O . . . . . |
$$ | . . O X X . . X . . . . O . O . . . . |
$$ | . . X O O X . . O . O . . O X O O . . |
$$ | . . O O . X . . . O . X X O X X O . . |
$$ | . . . . . . . . X O X . . X X X X O . |
$$ | . . O . . X . X . O O X X O . X O X . |
$$ | . . . . . . . . O O X X . . . X . . . |
$$ | . . . . . O X X O X . X . O O X . . . |
$$ | . . O O . O O X X . X . . . X . X . . |
$$ | . . O X O . . O X X X . O O X X . O . |
$$ | . . O X O X . O . O . X . X O X O . . |
$$ | . . O X X O b . . O O O X X O O O . O |
$$ | . X O X 1 a . O . X O O O X O . . O X |
$$ | . 6 X 2 f . e O X . X O X X O X O X X |
$$ | . 3 . X X X c O . . . X . X O . O O X |
$$ | 7 . . 4 O X O d . , . . X O O , O X X |
$$ | . X X O 5 O X X X X X . X X X X X X . |
$$ | . O O . . . O O O O . . X O X . . . . |
$$ | . . . . . . . . . . . O O . . . . . . |
$$ +---------------------------------------+[/go]


Aficionados of Sonoda will note that :w7: has a diagonal relationship to :w3:. A-03 does not. :)

_________________
The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins


This post by Bill Spight was liked by: Gomoto
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC - 8 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group