tsumego from Redmond's ABC of A&D

For lessons, as well as threads about specific moves, and anything else worth studying.
Post Reply
User avatar
cyclops
Lives in sente
Posts: 801
Joined: Mon May 10, 2010 3:38 pm
Rank: KGS 7 kyu forever
GD Posts: 460
Location: Amsterdam (NL)
Has thanked: 353 times
Been thanked: 107 times
Contact:
Contact cyclops

tsumego from Redmond's ABC of A&D

Post by cyclops »

Michael Redmond states in his book ( p 142 ) that the circled black move is sente against the corner.
Click Here To Show Diagram Code
[go]$$Bc
$$ --------------+
$$ . . . . . X . |
$$ . . B . X O . |
$$ . . . . . O . |
$$ . O X X W . . |
$$ . . . . O . . |
$$ . . X X O . . |
$$ . . X O . O . |
$$ . . X O . X . |
$$ . . . X . . . |[/go]
So my problem is: What can B do in the corner? Any help?

As a side issue:
Redmond advises to play the circled W move one point higher. Then B gets his sente move one point more to the right. Hence less influence towards the top, but it leaves a gote seki for B
Top
User avatar
daal
Oza
Posts: 2508
Joined: Wed Apr 21, 2010 1:30 am
GD Posts: 0
Has thanked: 1304 times
Been thanked: 1128 times

Re: tsumego from Redmond's ABC of A&D

Post by daal »

Well, white's next move from the book offers a hint. How about this for an anti-tsumego:

White to live.
Click Here To Show Diagram Code
[go]$$Bc
$$ --------------+
$$ . . . . . X . |
$$ . . X . X O . |
$$ . . . . . O . |
$$ . O X X O . . |
$$ . . . . O X . |
$$ . . X X O . . |
$$ . . X O . O . |
$$ . . X O . X . |
$$ . . . X . . . |[/go]
Patience, grasshopper.
Top
User avatar
cyclops
Lives in sente
Posts: 801
Joined: Mon May 10, 2010 3:38 pm
Rank: KGS 7 kyu forever
GD Posts: 460
Location: Amsterdam (NL)
Has thanked: 353 times
Been thanked: 107 times
Contact:
Contact cyclops

Re: tsumego from Redmond's ABC of A&D

Post by cyclops »

You are fast :clap: I tried that:
Click Here To Show Diagram Code
[go]$$Bc seki?
$$ --------------+
$$ . . . . . X . |
$$ . . X 7 X O 2 |
$$ . . . . 6 O . |
$$ . O X X O 5 3 |
$$ . . . . O 1 8 |
$$ . . X X O . 4 |
$$ . . X O . O . |
$$ . . X O . X . |
$$ . . . X . . . |[/go]
Top
User avatar
daal
Oza
Posts: 2508
Joined: Wed Apr 21, 2010 1:30 am
GD Posts: 0
Has thanked: 1304 times
Been thanked: 1128 times

Re: tsumego from Redmond's ABC of A&D

Post by daal »

cyclops wrote:You are fast :clap: I tried that:
Click Here To Show Diagram Code
[go]$$Bc seki?
$$ --------------+
$$ . . . . . X . |
$$ . . X 7 X O 2 |
$$ . . . . 6 O . |
$$ . O X X O 5 3 |
$$ . . . . O 1 8 |
$$ . . X X O . 4 |
$$ . . X O . O a |
$$ . . X O . X . |
$$ . . . X . . . |[/go]
Here, Black could get a ko by playing 7 at 8 and then answering White 7 with Q19.

But, what about Black 3 at a?
Patience, grasshopper.
Top
User avatar
cyclops
Lives in sente
Posts: 801
Joined: Mon May 10, 2010 3:38 pm
Rank: KGS 7 kyu forever
GD Posts: 460
Location: Amsterdam (NL)
Has thanked: 353 times
Been thanked: 107 times
Contact:
Contact cyclops

Re: tsumego from Redmond's ABC of A&D

Post by cyclops »

daal wrote:
Here, Black could get a ko by playing 7 at 8 and then answering White 7 with Q19.

But, what about Black 3 at a?
OK, I surrender to your beautiful move, let me steal it.
So I tried:
Click Here To Show Diagram Code
[go]$$Wc
$$ --------------+
$$ . . . . . X . |
$$ . . X 2 X O 5 |
$$ . . . . 1 O . |
$$ . O X X O . 6 |
$$ . . . . O X . |
$$ . . X X O . 7 |
$$ . . X . 8 O . |
$$ . . X . 0 X 3 |
$$ . . . X 4 9 . |
$$ . . . B . a . |
$$ . . . . b c . |
$$ . . . . . d . |
$$ . . . . . . . |[/go]
Wa,Bb,Wc,Bd won't produce another w eye nor escape, so w dies. But plenty of aji in the lower right, though!

edit: oops I forgot the circled black stone, so there is less aji. B4 at 10 might be better shape now.
Top
Post Reply

Return to “Study Group”