126. EdLee vs Loons

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EdLee
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Post by EdLee »

Click Here To Show Diagram Code
[go]$$Wm80 Prisoners: :w2: :b1:
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . O . X . . . O X . . . . |
$$ | . . . O X . X . O . . X O O X O . . . |
$$ | . . O O O . . . . O . . O X X X O . . |
$$ | . . X . . . O . . . O . . O X X X . . |
$$ | . . X O O . . X . . . . . . . X . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . X . . X . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . X . . . . |
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . . . . X . X X O |
$$ | . . . . . . . . . . . . . . . X O O O |
$$ | . . O . . . . . . . . X 1 . . X O . O |
$$ | . . . . . . . . . . . O X . . . X O . |
$$ | . . . O . . . . . , . . O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . . X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
Trigger:
Click Here To Show Diagram Code
[go]$$Wm80
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . . . . X . X X O |
$$ | . . . . . . . . . . 5 4 . . . X O O O |
$$ | . . O . . . . . . . 3 X 1 . . X O . O |
$$ | . . . . . . . . . . . O X 2 . . X O . |
$$ | . . . O . . . . . , . . O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . . X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
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EdLee
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Post by EdLee »

As planned. Let's see how Loons replies.
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Loons
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Re: 126. EdLee vs Loons

Post by Loons »

I accept the trigger. However, I was not expecting :w84: somehow, so move pending...
What a hard move. I say it was unexpected because Ed is allowing a cut, though I guess he does not feel threatened afterwards?
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Post by EdLee »

Current:
Click Here To Show Diagram Code
[go]$$Wm80 Prisoners: :w2: :b1:
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . O . X . . . O X . . . . |
$$ | . . . O X . X . O . . X O O X O . . . |
$$ | . . O O O . . . . O . . O X X X O . . |
$$ | . . X . . . O . . . O . . O X X X . . |
$$ | . . X O O . . X . . . . . . . X . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . X . . X . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . X . . . . |
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . . . . X . X X O |
$$ | . . . . . . . . . . 5 4 . . . X O O O |
$$ | . . O . . . . . . . 3 X 1 . . X O . O |
$$ | . . . . . . . . . . . O X 2 . . X O . |
$$ | . . . O . . . . . , . . O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . . X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
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EdLee
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Post by EdLee »

(a) and (b) seem miai? :scratch:
Click Here To Show Diagram Code
[go]$$
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . a . . X . X X O |
$$ | . . . . . . . . . . O X . . . X O O O |
$$ | . . O . . . . . . . O X O . . X O . O |
$$ | . . . . . . . . . . . O X X . . X O . |
$$ | . . . O . . . . . , . . O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . b X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
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EdLee
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Post by EdLee »

Another idea is the :bc: area seems a bit over-concentrated for B...
so this result is OK for W ? :scratch:
Click Here To Show Diagram Code
[go]$$
$$ | . . X , . . . . . , . . . . . B . X X |
$$ | . . . . . . . . . . . . . . O B . X O |
$$ | . . . . . . . . . . . . . . B . X X O |
$$ | . . . . . . . . . . O B . . . B O O O |
$$ | . . O . . . . . . . O B O . . B O . O |
$$ | . . . . . . . . . . . O B B . . B O . |
$$ | . . . O . . . . . , . . O B . B . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . . X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
For example, instead of :b63: at (a), if B played :b1:, then the (b) area could become big?
I was worried about :b1:, but had no time to do anything about it.
So I thought :b63:(a) gave me a chance to take :b1: first (as :w76:).
Click Here To Show Diagram Code
[go]$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . O . X . . . O X . . . . |
$$ | . . . O X . X . O . . X O O X O . . . |
$$ | . . O O O . . . . O . . O X X X O . . |
$$ | . . X . . . O . . . O . . O X X X . . |
$$ | . . X O O . . X . . . . . . . X . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . a . . X . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . X . . . . |
$$ | . . X , . . . . . , . . . . . X . . . |
$$ | . . . . . . . . . . . . . . O X . . . |
$$ | . . . . . . . . . . . . . . . O X . . |
$$ | . . . . . . . . . . . . b . . . . . . |
$$ | . . O . . . . . . . . . . . . X O X . |
$$ | . . . . . . . . . . . . . . . . X O . |
$$ | . . . O . . . . . , . . 1 X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . . X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
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Re:

Post by Magicwand »

EdLee wrote:
(a) and (b) seem miai? :scratch:
Click Here To Show Diagram Code
[go]$$
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . a . . X . X X O |
$$ | . . . . . . . . . . O X . . . X O O O |
$$ | . . O . . . . . . . O X O . . X O . O |
$$ | . . . . . . . . . . . O X X . . X O . |
$$ | . . . O . . . . . , . . O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . b X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]

you can not compare them because...
"b" is gote and a is "a" must move.
"The more we think we know about
The greater the unknown"

Words by neil peart, music by geddy lee and alex lifeson
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Re: 126. EdLee vs Loons

Post by Loons »

This seems natural, to me;
Click Here To Show Diagram Code
[go]$$Bcm85 Prisoners: :w2: :b1:
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . O . X . . . O X . . . . |
$$ | . . . O X . X . O . . X O O X O . . . |
$$ | . . O O O . . . . O . . O X X X O . . |
$$ | . . X . . . O . . . O . . O X X X . . |
$$ | . . X O O . . X . . . . . . . X . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . X . . X . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . X . . . . |
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . 3 . . X . X X O |
$$ | . . . . . . . . . . O X . . . X O O O |
$$ | . . O . . . . . . . O X O . . X O . O |
$$ | . . . . . . . . . b 1 O X X . . X O . |
$$ | . . . O . . . . . , a 2 O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . . X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]

I am not confident on the correct use of this cut yet.

Edit: I worked out what I was trying to say with 'a' and 'b'. If black plays :b85: @ :b87: directly and white fixes at 'a', black will be able to take the peep at 'b'. However, the proverb says: "Never peep where you can cut!" Just, the order is a bit wonky with my application :P.


Hah, sniped by Magicwand
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Re: 126. EdLee vs Loons

Post by Loons »

Click Here To Show Diagram Code
[go]$$Bcm85 Prisoners: :w2: :b1:
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . O . X . . . O X . . . . |
$$ | . . . O X . X . O . . X O O X O . . . |
$$ | . . O O O . . . . O . . O X X X O . . |
$$ | . . X . . . O . . . O . . O X X X . . |
$$ | . . X O O . . X . . . . . . . X . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . X . . X . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . X . . . . |
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . 3 . . X . X X O |
$$ | . . . . . . . . . . O X . . . X O O O |
$$ | . . O . . . . . . . O X O . . X O . O |
$$ | . . . . . . . . . . 1 O X X . . X O . |
$$ | . . . O . . . . . , . 2 O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . . X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]

(Feel free to disagree with :w86: )
Well, whatever comes next :b85: does seem like the only move. After which :b87: is also an only move*. :b85: atari at 86 leaves white with better shape options after :b87: . :b87: is necessary to stop white playing "driving" atari to take control of the centre.

*Probably not an only move; I somehow overlooked trying :b87: at eg. K5** until seconds after hitting "submit."

**Well, maybe not K5 specifically. There was more reading to be done, in any case; there might have been a good shortage of liberties trick against M4 group. Or maybe :b87: hane instead and allow white to M8 cut given he would probably "lose" that fight. Erg. Eh.

I am happy with the game move.
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Post by EdLee »

Thanks, Loons. :w86: was the only move. :)
(p)
B missed a chance with :b87:. If W blocks with :w2:, B cuts off :wc: in sente:
Click Here To Show Diagram Code
[go]$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . O . X . . . O X . . . . |
$$ | . . . O X . X . O . . X O O X O . . . |
$$ | . . O O O . . . . O . . O X X X O . . |
$$ | . . X . . . O . . . O . . O X X X . . |
$$ | . . X O O . . X . . . . . . . X . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . X . . X . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . X . . . . |
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . . . . X . X X O |
$$ | . . . . . . . . . . W X . . . X O O O |
$$ | . . O . . . . . . . W X O . . X O . O |
$$ | . . . . . . . . . . X O X X . . X O . |
$$ | . . . O . . . . . , 3 O O X . X . O . |
$$ | . . O . . X . . X . . . O 1 . . O . . |
$$ | . . . X . . . . . . . 4 . 2 O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
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EdLee
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Post by EdLee »

Hmm... (a) to capture :bc:, or (b)...? :study:
Click Here To Show Diagram Code
[go]$$W
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . X . . X . X X O |
$$ | . . . . . . . . . . O X . . . X O O O |
$$ | . . O . . . . . . . O X O . . X O . O |
$$ | . . . . . . . . . a B O X X . . X O . |
$$ | . . . O . . . . . , . O O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . b X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
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EdLee
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Post by EdLee »

Click Here To Show Diagram Code
[go]$$Wm88 Prisoners: :w2: :b1:
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . O . X . . . O X . . . . |
$$ | . . . O X . X . O . . X O O X O . . . |
$$ | . . O O O . . . . O . . O X X X O . . |
$$ | . . X . . . O . . . O . . O X X X . . |
$$ | . . X O O . . X . . . . . . . X . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . X . . X . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . X . . . . |
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . X . . X . X X O |
$$ | . . . . . . . . . . O X . . . X O O O |
$$ | . . O . . . . . . . O X O . . X O . O |
$$ | . . . . . . . . . . X O X X . . X O . |
$$ | . . . O . . . . . , . O O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . 1 X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
(p)
Wrong choice. W should've captured with :w1:. Now the center is dame.
(a) and (b) are miai, so W is OK at the corner:
Click Here To Show Diagram Code
[go]$$W
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . b . . . . . . . . X . . X . X X O |
$$ | . . . . . . . . . . O X . . . X O O O |
$$ | . . O . . . . . . . O X O . . X O . O |
$$ | . . . . . . . . . 1 X O X X . . X O . |
$$ | . . . O . . . . . , . O O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . a X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
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EdLee
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Post by EdLee »

Last night I was tired yet still wanted to play,
but somehow restrained myself to wait, and it was a good choice, I think.
I even saw Loons on KGS and told him as much.
(And found out his time zone is 19 hours ahead, almost one full day in the future! :))

Back in Post #215, I considered perhaps (a) and (b) were miai:
Click Here To Show Diagram Code
[go]$$ Var. 1
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . a . . X . X X O |
$$ | . . . . . . . . . . O X . . . X O O O |
$$ | . . O . . . . . . . O X O . . X O . O |
$$ | . . . . . . . . . . . O X X . . X O . |
$$ | . . . O . . . . . , . . O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . b X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
So if :b1:, I should take :w2::
Click Here To Show Diagram Code
[go]$$B
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . 1 . . X . X X O |
$$ | . . . . . . . . . . O X . . . X O O O |
$$ | . . O . . . . . . . O X O . . X O . O |
$$ | . . . . . . . . . . . O X X . . X O . |
$$ | . . . O . . . . . , . . O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . 2 X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
Which is the same shape as in the real game -- since B can always do the :bc: :wc: exchange --
only the order was different:
Click Here To Show Diagram Code
[go]$$B
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . X . . X . X X O |
$$ | . . . . . . . . . . O X . . . X O O O |
$$ | . . O . . . . . . . O X O . . X O . O |
$$ | . . . . . . . . . . B O X X . . X O . |
$$ | . . . O . . . . . , . W O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . O X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
So if I changed my mind and captured the :bc: stone with :w1:,
it means letting B take both :bt: and :b2: -- both (a) and (b) in Var. 1:
Click Here To Show Diagram Code
[go]$$W
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . Y . . X . X X O |
$$ | . . . . . . . . . . O X . . . X O O O |
$$ | . . O . . . . . . . O X O . . X O . O |
$$ | . . . . . . . . . 1 B O X X . . X O . |
$$ | . . . O . . . . . , . O O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . 2 X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
Somehow I had confused myself -- maybe still tired from Congress and other projects --
and I'm glad I took the sleep first, and :w88: the the above tewari came to me in the shower. :)
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EdLee
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Post by EdLee »

2-month snapshot:
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Loons
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Re: 126. EdLee vs Loons

Post by Loons »

Click Here To Show Diagram Code
[go]$$Bcm89 Prisoners: :w2: :b1:
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . O . X . . . O X . . . . |
$$ | . . . O X . X . O . . X O O X O . . . |
$$ | . . O O O . . . . O . . O X X X O . . |
$$ | . . X . . . O . . . O . . O X X X . . |
$$ | . . X O O . . X . . . . . . . X . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . X . . X . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . X . . . . |
$$ | . . X , . . . . . , . . . . . X . X X |
$$ | . . . . . . . . . . . . . . O X . X O |
$$ | . . . . . . . . . . . X . . X . X X O |
$$ | . . . . . . . . . . O X . . . X O O O |
$$ | . . O . . . . . . . O X O . . X O . O |
$$ | . . . . . . . . . 1 X O X X . . X O . |
$$ | . . . O . . . . . , . O O X . X . O . |
$$ | . . O . . X . . X . . . O . . . O . . |
$$ | . . O X . . . . . . . . . . O . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]

Well, Ed got to C2 first... Sorry post #137

A synopsis of my reading:
I have to (and am happy to) save my cutting stone, this also makes my bottom group safer.
L4 instead, reducing Ed's liberties does not threaten anything other than a few forcing moves after Ed gets to tenuki, and gains one less liberty than the game move.
The game move threatens to net Ed's cut off stones.

I'll try and post a useful working count soon.

Edit: I think I'm about 14 points down, including komi. I still have H17 yose and should gain points in the centre. Diagram later.
Revisiting Go - Study Journal
My Programming Blog - About the evolution of my go bot.
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