It is currently Thu Mar 28, 2024 8:45 am

All times are UTC - 8 hours [ DST ]




Post new topic Reply to topic  [ 13 posts ] 
Author Message
Offline
 Post subject: Please review this tsumego problem that came up- 2k Fox
Post #1 Posted: Fri Dec 21, 2018 1:26 pm 
Dies with sente

Posts: 121
Liked others: 0
Was liked: 27
Towards the end, the white group on the right side died because he misplayed the tsumego. I believe it was alive unconditionally, but can anyone see if they are able to kill it?

If anyone is willing to provide an overall review for black, that'd be great. Thank you for the review.



Attachments:
[negapesuo]vs[江南翰子]_2k match.sgf [1021 Bytes]
Downloaded 568 times
Top
 Profile  
 
Offline
 Post subject: Re: Please review this tsumego problem that came up- 2k Fox
Post #2 Posted: Fri Dec 21, 2018 6:49 pm 
Judan
User avatar

Posts: 5539
Location: Banbeck Vale
Liked others: 1103
Was liked: 1456
Rank: 1D AGA
GD Posts: 1512
Kaya handle: Test
As requested, a review for black. Comments extend all the way to move 133.


_________________
Help make L19 more organized. Make an index: https://lifein19x19.com/viewtopic.php?f=14&t=5207

Top
 Profile  
 
Offline
 Post subject: Re: Please review this tsumego problem that came up- 2k Fox
Post #3 Posted: Sat Dec 22, 2018 1:16 am 
Lives in gote

Posts: 502
Liked others: 1
Was liked: 153
Rank: KGS 2k
GD Posts: 100
KGS: Tryss
@Joaz : in your variation for :b89:, what if :w90: is at Q18 ?

Top
 Profile  
 
Offline
 Post subject: Re: Please review this tsumego problem that came up- 2k Fox
Post #4 Posted: Sat Dec 22, 2018 1:33 am 
Gosei
User avatar

Posts: 1753
Liked others: 177
Was liked: 491
Wrong, ignore.

Could White live like this?

Click Here To Show Diagram Code
[go]$$W
$$ X . O X . . . |
$$ O O . O X . . |
$$ X O O . X X . |
$$ X X X X . O 2 |
$$ O O O X O 4 3 |
$$ X X X O O 1 X |
$$ X . X X O O 5 |
$$ . X O X O . O |
$$ . . . O X O . |
$$ O . X . X X . |
$$ O X . . X . . |
$$ . . . . . . . |[/go]


Last edited by jlt on Sat Dec 22, 2018 1:48 am, edited 1 time in total.
Top
 Profile  
 
Offline
 Post subject: Re: Please review this tsumego problem that came up- 2k Fox
Post #5 Posted: Sat Dec 22, 2018 1:46 am 
Lives in gote

Posts: 502
Liked others: 1
Was liked: 153
Rank: KGS 2k
GD Posts: 100
KGS: Tryss
@jtl : No, because then

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


But white can live :

Click Here To Show Diagram Code
[go]$$W
$$ X . O X . . . |
$$ O O . O X . . |
$$ X O O . X X . |
$$ X X X X . O . |
$$ O O O X O . 1 |
$$ X X X O O . X |
$$ X . X X O O . |
$$ . X O X O . O |
$$ . . . O X O . |
$$ O . X . X X . |
$$ O X . . X . . |
$$ . . . . . . . |[/go]


This post by Tryss was liked by: jlt
Top
 Profile  
 
Offline
 Post subject: Re: Please review this tsumego problem that came up- 2k Fox
Post #6 Posted: Sat Dec 22, 2018 1:48 am 
Gosei
User avatar

Posts: 1753
Liked others: 177
Was liked: 491
Yes of course, I just realized this after posting...

Top
 Profile  
 
Offline
 Post subject: Re: Please review this tsumego problem that came up- 2k Fox
Post #7 Posted: Sat Dec 22, 2018 12:19 pm 
Lives in sente
User avatar

Posts: 1206
Liked others: 51
Was liked: 192
Rank: KGS 5d
KGS: Str1fe, Midorisuke
127 at S12 should kill unconditionally. 131 should hane on the other side instead of blocking.

Top
 Profile  
 
Offline
 Post subject: Re: Please review this tsumego problem that came up- 2k Fox
Post #8 Posted: Sat Dec 22, 2018 12:25 pm 
Dies with sente

Posts: 121
Liked others: 0
Was liked: 27
Tryss wrote:
@Joaz : in your variation for :b89:, what if :w90: is at Q18 ?


Yes, also confused by this.

Top
 Profile  
 
Offline
 Post subject: Re: Please review this tsumego problem that came up- 2k Fox
Post #9 Posted: Sat Dec 22, 2018 12:28 pm 
Dies with sente

Posts: 121
Liked others: 0
Was liked: 27
Shaddy wrote:
127 at S12 should kill unconditionally. 131 should hane on the other side instead of blocking.


I see... There was no reason for me to cut since the group is already cut off in miai.

Top
 Profile  
 
Offline
 Post subject: Re: Please review this tsumego problem that came up- 2k Fox
Post #10 Posted: Sun Dec 23, 2018 12:26 am 
Judan
User avatar

Posts: 5539
Location: Banbeck Vale
Liked others: 1103
Was liked: 1456
Rank: 1D AGA
GD Posts: 1512
Kaya handle: Test
Tryss wrote:
@Joaz : in your variation for :b89:, what if :w90: is at Q18 ?


Then black dies. Sorry about that. I was reading too fast. :oops:

_________________
Help make L19 more organized. Make an index: https://lifein19x19.com/viewtopic.php?f=14&t=5207

Top
 Profile  
 
Offline
 Post subject: Re: Please review this tsumego problem that came up- 2k Fox
Post #11 Posted: Sun Dec 23, 2018 6:18 am 
Oza
User avatar

Posts: 2401
Location: Tokyo, Japan
Liked others: 2338
Was liked: 1332
Rank: Jp 6 dan
KGS: ez4u
White should play 114 at P12. So can Black play 113 at Q12?

_________________
Dave Sigaty
"Short-lived are both the praiser and the praised, and rememberer and the remembered..."
- Marcus Aurelius; Meditations, VIII 21

Top
 Profile  
 
Offline
 Post subject: Re: Please review this tsumego problem that came up- 2k Fox
Post #12 Posted: Sun Dec 23, 2018 1:40 pm 
Judan
User avatar

Posts: 5539
Location: Banbeck Vale
Liked others: 1103
Was liked: 1456
Rank: 1D AGA
GD Posts: 1512
Kaya handle: Test
ez4u wrote:
White should play 114 at P12. So can Black play 113 at Q12?

I was thinking much the same, since P9 and R9 are miai. But 113 at P12 works also, and guarantees a connection to the upper right stones.

Nice sig, BTW. I had read it before, but I couldn't remember where.

_________________
Help make L19 more organized. Make an index: https://lifein19x19.com/viewtopic.php?f=14&t=5207

Top
 Profile  
 
Offline
 Post subject: Re: Please review this tsumego problem that came up- 2k Fox
Post #13 Posted: Tue Dec 25, 2018 7:47 pm 
Dies in gote

Posts: 58
Liked others: 5
Was liked: 17
Rank: 4kyu
Regarding 3rd line stones, there is saying in Japan that 4 dies and 6 lives (5 depends on who has sente). So you should strive to make a 3rd line of 6 stones or make a line of 5 stones+sente, if you want to live within an opponent framework.

Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 13 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