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YCH Tesuji vol. 3 Problem 1.23

Posted: Fri Sep 20, 2013 10:28 am
by SoDesuNe
Hey!

I have a question regarding this problem.
Click Here To Show Diagram Code
[go]$$Bc Black to play
$$ +---------------------+
$$ . . . X . . . . . . |
$$ O . . X O . . . . . |
$$ . O O X . O . X . . |
$$ , O X X . . O X . . |
$$ . . O X . . . X . . |
$$ . O . X . O . . . . |
$$ . . O . O . O X . . |
$$ O . O . O . . X . . |
$$ . . . . . . . . . . |
$$ , . . . . . , X . . |[/go]
Book-answer:
Click Here To Show Diagram Code
[go]$$Bc Black plays :b1: to get 'a' in Sente
$$ +---------------------+
$$ . . . X . . . . . . |
$$ O . . X O . . . . . |
$$ . O O X . O a X . . |
$$ , O X X . 1 O X . . |
$$ . . O X . . . X . . |
$$ . O . X . O . . . . |
$$ . . O . O . O X . . |
$$ O . O . O . . X . . |
$$ . . . . . . . . . . |
$$ , . . . . . , X . . |[/go]
Click Here To Show Diagram Code
[go]$$Bc Book variation
$$ +---------------------+
$$ . . . X . . . . . . |
$$ O . . X O 7 . . . . |
$$ . O O X . O 5 X . . |
$$ , O X X 2 1 O X . . |
$$ . . O X 6 3 4 X . . |
$$ . O . X . O . . . . |
$$ . . O . O . O X . . |
$$ O . O . O . . X . . |
$$ . . . . . . . . . . |
$$ , . . . . . , X . . |[/go]
My attempt:
Click Here To Show Diagram Code
[go]$$Bc Black plays :b1:, which makes 'a' and 'b' Miai
$$ +---------------------+
$$ . . . X . . . . . . |
$$ O . . X O b . . . . |
$$ . O O X . O 1 X . . |
$$ , O X X . a O X . . |
$$ . . O X . . . X . . |
$$ . O . X . O . . . . |
$$ . . O . O . O X . . |
$$ O . O . O . . X . . |
$$ . . . . . . . . . . |
$$ , . . . . . , X . . |[/go]
Did I miss something?

Re: YCH Tesuji vol. 3 Problem 1.23

Posted: Fri Sep 20, 2013 10:44 am
by tchan001
I think you quoted the book solution wrongly. My book says:
Click Here To Show Diagram Code
[go]$$Bc Book variation
$$ +---------------------+
$$ . . . X . . . . . . |
$$ O . . X O 7 . . . . |
$$ . O O X . O 5 X . . |
$$ , O X X 2 1 O X . . |
$$ . . O X 6 3 4 X . . |
$$ . O . X . O . . . . |
$$ . . O . O . O X . . |
$$ O . O . O . . X . . |
$$ . . . . . . . . . . |
$$ , . . . . . , X . . |[/go]
Click Here To Show Diagram Code
[go]$$Bc Book variation
$$ +---------------------+
$$ . . . X . . . . . . |
$$ O . . X O . . . . . |
$$ . O O X . O . X . . |
$$ , O X X 2 1 O X . . |
$$ . . O X 4 3 5 X . . |
$$ . O . X . O . . . . |
$$ . . O . O . O X . . |
$$ O . O . O . . X . . |
$$ . . . . . . . . . . |
$$ , . . . . . , X . . |[/go]

Re: YCH Tesuji vol. 3 Problem 1.23

Posted: Fri Sep 20, 2013 11:59 am
by SoDesuNe
You are right! I edited my first post. Thank you!

The question remains, though =D

Re: YCH Tesuji vol. 3 Problem 1.23

Posted: Fri Sep 20, 2013 12:19 pm
by oren
SoDesuNe wrote:You are right! I edited my first post. Thank you!

The question remains, though =D
How do you respond to O17 in your line?

Re: YCH Tesuji vol. 3 Problem 1.23

Posted: Fri Sep 20, 2013 2:35 pm
by SoDesuNe
Click Here To Show Diagram Code
[go]$$Bc Guzumi desu ka?
$$ +---------------------+
$$ . . . X . . . . . . |
$$ O . . X O . . . . . |
$$ . O O X 2 O 1 X . . |
$$ , O X X . . O X . . |
$$ . . O X . 3 . X . . |
$$ . O . X . O . . . . |
$$ . . O . O . O X . . |
$$ O . O . O . . X . . |
$$ . . . . . . . . . . |
$$ , . . . . . , X . . |[/go]

Re: YCH Tesuji vol. 3 Problem 1.23

Posted: Fri Sep 20, 2013 3:27 pm
by oren
Yeah, I see no problem with it either. It could have multiple solutions.

Re: YCH Tesuji vol. 3 Problem 1.23

Posted: Mon Sep 23, 2013 3:45 pm
by cyclops
Stupid question maybe. But what is YCH?

Re: YCH Tesuji vol. 3 Problem 1.23

Posted: Mon Sep 23, 2013 4:56 pm
by tchan001