[go]$$Wm60 Prisoners :b1:
$$ ----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . X . O . . X . . X . . X O . |
$$ | . . O O O O . . . , . . . O X X O . . |
$$ | . O . . . . . . . . . . . . X O . O . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . O X X . O . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . . . O X . . |
$$ | . X . X . O X O . . . . . . . . X . . |
$$ | . . . X . X O O . , . . . . . , . . . |
$$ | . . . . . . X . . . . . . . . . X . . |
$$ | . . X . . X . . O . . . . . . . . . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . X O . . . . . . . . . . . . 1 . . . |
$$ | . O . . . . . . . . . . . . . X . . . |
$$ | . . . O . . . . . O . . O . . , . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ----------------------------------------[/go]
One idea is B can turn the lower right into solid territory with one move,
say (or (a) or (b), not sure what is pro shape);
whereas W needs probably 3 moves to do the same at the bottom--
(c) plus 2 moves around (d):
$$B
$$ ----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . X . O . . X . . X . . X O . |
$$ | . . O O O O . . . , . . . O X X O . . |
$$ | . O . . . . . . . . . . . . X O . O . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . O X X . O . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . . . O X . . |
$$ | . X . X . O X O . . . . . . . . X . . |
$$ | . . . X . X O O . , . . . . . , . . . |
$$ | . . . . . . X . . . . . . . . . X . . |
$$ | . . X . . X . . O . . . . . . . . . . |
$$ | . X . . . . . . . . . . . . . a b . . |
$$ | . X O . . . . . . . . . . . . . 1 . . |
$$ | . O . . . . . . . . . . . . . X . . . |
$$ | . . . O . . . . . O . . O . . , . . . |
$$ | . . . . . d . . . . . . . c . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ----------------------------------------
[go]$$Wm60 Prisoners :b1:
$$ ----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . X . O . . X . . X . . X O . |
$$ | . . O O O O . . . , . . . O X X O . . |
$$ | . O . . . . . . . . . . . . X O . O . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . O X X . O . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . . . O X . . |
$$ | . X . X . O X O . . . . . . . . X . . |
$$ | . . . X . X O O . , . . . . . , . . . |
$$ | . . . . . . X . . . . . . . . . X . . |
$$ | . . X . . X . . O . . . . . . . . . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . X O . . . . . . . . . . . . 1 2 . . |
$$ | . O . . . . . . . . . . . . . X . . . |
$$ | . . . O . . . . . O . . O . . , . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ----------------------------------------[/go]
Hrmmm, good move, good timing. If I was fearing about being behind before, I'm definitely behind now. I must get my bottom left corner move in soon.
Re: 103. EdLee vs topazg
Posted: Mon Mar 21, 2011 4:31 am
by cdybeijing
Is white 60 a common reduction tactic?
Re: 103. EdLee vs topazg
Posted: Mon Mar 21, 2011 5:04 am
by Magicwand
cdybeijing wrote:
Is white 60 a common reduction tactic?
yes. but i would have done it differently
see below..
i think white wanted sente. my proposal is most likely gote.
i feel that black is behind. if black feels he is behind and jump in bottom left corner... he is fall behind even more.
also..i feel 'a' is very very big..because of followup move at 'b'
if white can grab sente and play 'a' he will be comfortably ahead.
$$Wm60 Prisoners
$$ ----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . X . O . . X . . X . . X O . |
$$ | . . O O O O b . . , . . . O X X O . . |
$$ | . O . . . . . . . . . . . . X O . O . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . O X X . O . . . . . . . . . . . . . |
$$ | . O O a . O X . . . . . . . . O X . . |
$$ | . X . X . O X O . . . . . . . . X . . |
$$ | . . . X . X O O . , . . . . . , . . . |
$$ | . . . . . . X . . . . . . . . . X . . |
$$ | . . X . . X . . O . . . . . . . . . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . X O . . . . . . . . . . . . . . . . |
$$ | . O . . . . . . . . . . . . . X . . . |
$$ | . . . O . . . . . O . . O . . , 1 . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ----------------------------------------
[go]$$Wm60 Prisoners
$$ ----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . X . O . . X . . X . . X O . |
$$ | . . O O O O b . . , . . . O X X O . . |
$$ | . O . . . . . . . . . . . . X O . O . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . O X X . O . . . . . . . . . . . . . |
$$ | . O O a . O X . . . . . . . . O X . . |
$$ | . X . X . O X O . . . . . . . . X . . |
$$ | . . . X . X O O . , . . . . . , . . . |
$$ | . . . . . . X . . . . . . . . . X . . |
$$ | . . X . . X . . O . . . . . . . . . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . X O . . . . . . . . . . . . . . . . |
$$ | . O . . . . . . . . . . . . . X . . . |
$$ | . . . O . . . . . O . . O . . , 1 . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ----------------------------------------[/go]
Re: 103. EdLee vs topazg
Posted: Mon Mar 21, 2011 6:03 am
by gaius
Hmmm... wouldn't this be more active? I don't see a really convincing answer for white, for example I think the sequence below at least gives black some attacking hopes again:
$$Wm60 Prisoners :b1:
$$ ----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . X . O . . X . . X . . X O . |
$$ | . . O O O O . . . , . . . O X X O . . |
$$ | . O . . . . . . . . . . . . X O . O . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . O X X . O . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . . . O X . . |
$$ | . X . X . O X O . . . . . . . . X . . |
$$ | . . . X . X O O . , . . . . . , . . . |
$$ | . . . . . . X . . . . . . . . . X . . |
$$ | . . X . . X . . O . . . . . . . . . . |
$$ | . X . . . . . . . . . . . . . 3 . . . |
$$ | . X O . . . . . . . . . . . 2 1 . . . |
$$ | . O . . . . . . . . . . . . . X 4 . . |
$$ | . . . O . . . . . O . . O . . , . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ----------------------------------------
[go]$$Wm60 Prisoners :b1:
$$ ----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . X . O . . X . . X . . X O . |
$$ | . . O O O O . . . , . . . O X X O . . |
$$ | . O . . . . . . . . . . . . X O . O . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . O X X . O . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . . . O X . . |
$$ | . X . X . O X O . . . . . . . . X . . |
$$ | . . . X . X O O . , . . . . . , . . . |
$$ | . . . . . . X . . . . . . . . . X . . |
$$ | . . X . . X . . O . . . . . . . . . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . X O . . . . . . . . . . . . 1 2 . . |
$$ | . O . . . . . . . . . . . . . X . . . |
$$ | . . . O . . . . . O . . O . . , . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ----------------------------------------[/go]
So, my current feeling is that my winning chances are not good, perhaps 30% or so right now. Ed's played a really great game, and as far as I can feel has made no obvious blunders. He's certainly played a game that defies an AGA 4k rating IMHO.
That said, I'm obvious not giving up just yet. One of the reasons I played to the top like I did was to cut. Unfortunately, the cut is messy, and I don't think it actually works:
$$Wm60 Prisoners :b1:
$$ ----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . X 3 O 7 . X . . X . . X O . |
$$ | . . O O O O 2 4 5 , . . . O X X O . . |
$$ | . O . . . . . . 6 9 . . . . X O . O . |
$$ | . . . . . . . 8 . . . . . . . O O . . |
$$ | . O X X . O . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . . . O X . . |
$$ | . X . X . O X O . . . . . . . . X . . |
$$ | . . . X . X O O . , . . . . . , . . . |
$$ | . . . . . . X . . . . . . . . . X . . |
$$ | . . X . . X . . O . . . . . . . . . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . X O . . . . . . . . . . . . . . . . |
$$ | . O . . . . . . . . . . . . . X . . . |
$$ | . . . O . . . . . O . . O . . , . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ----------------------------------------
[go]$$Wm60 Prisoners :b1:
$$ ----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . X 5 O . . X . . X . . X O . |
$$ | . . O O O O 2 3 . 7 . . . O X X O . . |
$$ | . O . . . . 4 6 . . . . . . X O . O . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . O X X . O . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . . . O X . . |
$$ | . X . X . O X O . . . . . . . . X . . |
$$ | . . . X . X O O . , . . . . . , . . . |
$$ | . . . . . . X . . . . . . . . . X . . |
$$ | . . X . . X . . O . . . . . . . . . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . X O . . . . . . . . . . . . . . . . |
$$ | . O . . . . . . . . . . . . . X . . . |
$$ | . . . O . . . . . O . . O . . , . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ----------------------------------------[/go]
Now I think I have a seriously weak group to worry about. I can pull back and let White block, and I do think that's better, but it feels hard to pull off a serious coup here to me. However, look at the following:
$$Wm60 Prisoners :b1:
$$ ----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . X 4 O . . X . . X . . X O . |
$$ | . . O O O O 2 3 . 9 . . . O X X O . . |
$$ | . O . . . 0 5 6 7 . . . . . X O . O . |
$$ | . . . . . . . 8 . . . . . . . O O . . |
$$ | . O X X . O b b . . . . . . . . . . . |
$$ | . O O a . O X b . . . . . . . O X . . |
$$ | . X . X . O X O . . . . . . . . X . . |
$$ | . . . X . X O O . , . . . . . , . . . |
$$ | . . . . . . X . . . . . . . . . X . . |
$$ | . . X . . X . . O . . . . . . . . . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . X O . . . . . . . . . . . . . . . . |
$$ | . O . . . . . . . . . . . . . X . . . |
$$ | . . . O . . . . . O . . O . . , . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ----------------------------------------
[go]$$Wm60 Prisoners :b1:
$$ ----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . X 4 O . . X . . X . . X O . |
$$ | . . O O O O 2 3 . 9 . . . O X X O . . |
$$ | . O . . . 0 5 6 7 . . . . . X O . O . |
$$ | . . . . . . . 8 . . . . . . . O O . . |
$$ | . O X X . O b b . . . . . . . . . . . |
$$ | . O O a . O X b . . . . . . . O X . . |
$$ | . X . X . O X O . . . . . . . . X . . |
$$ | . . . X . X O O . , . . . . . , . . . |
$$ | . . . . . . X . . . . . . . . . X . . |
$$ | . . X . . X . . O . . . . . . . . . . |
$$ | . X . . . . . . . . . . . . . . . . . |
$$ | . X O . . . . . . . . . . . . . . . . |
$$ | . O . . . . . . . . . . . . . X . . . |
$$ | . . . O . . . . . O . . O . . , . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ----------------------------------------[/go]
This is so close to working, that I have a lot of aji to play with. A move at "a" or "b" could simply make this work. In fact, I'm convinced of it enough that I want to play one the second I get sente again, before looking at the lower left. Assuming White fixes his cut if I do play this way, I need a follow up. So, either I play at "a", take my immediate profit in sente, and then play in the lower left, and count later, or I play at "b", and aim to do some serious damage in the center and leave "a" for later. My gut feeling is "a", as it looks like sente profit, and that's a "good thing" right now. However, it may not be enough. It could be that cutting directly is still best :S
Epic game for me here!
EDIT: That's it, if I get sente, I'm cutting. Let's start some fires.
Posted: Mon Mar 21, 2011 9:00 pm
by EdLee
$$Wm62 Prisoners :b1:
$$ ----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . X . O . . X . . X . . X O . |
$$ | . . O O O O . . . , . . . O X X O . . |
$$ | . O . . . . . . . . . . . . X O . O . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . O X X . O . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . . . O X . . |
$$ | . X . X . O X O . . . . . . . . X . . |
$$ | . . . X . X O O . , . . . . . , . . . |
$$ | . . . . . . X . . . . . . . . . X . . |
$$ | . . X . . X . . O . . . . . . . . . . |
$$ | . X . . . . . . . . . . . . . . 1 . . |
$$ | . X O . . . . . . . . . . . . O X . . |
$$ | . O . . . . . . . . . . . . . X . . . |
$$ | . . . O . . . . . O . . O . . , . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ----------------------------------------
[go]$$Wm64 Prisoners :b1:
$$ ----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . X . O . . X . . X . . X O . |
$$ | . . O O O O . . . , . . . O X X O . . |
$$ | . O . . . . . . . . . . . . X O . O . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . O X X . O . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . . . O X . . |
$$ | . X . X . O X O . . . . . . . . X . . |
$$ | . . . X . X O O . , . . . . 2 , . . . |
$$ | . . . . . . X . . . . . . . . . X . . |
$$ | . . X . . X . . O . . . . . . . . . . |
$$ | . X . . . . . . . . . . . . . 1 O . . |
$$ | . X O . . . . . . . . . . . . O X . . |
$$ | . O . . . . . . . . . . . . . X X . . |
$$ | . . . O . . . . . O . . O . . , . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ----------------------------------------[/go]
Ok, I'm in danger of being stamped on. I can't afford to lose the right edge, and I can't afford to let White build a wall facing the middle. Nice choices, especially when I have to choose one of them. Ed's playing a great game here, and I'm pretty sure I'm not going to get a single careless move this game. That means complications that come off, or resignation when they don't. I've opted to connect and jump out here because it's kinda sente against his 3 stones. Then I cut in the top left. My group here is not yet alive, but I don't have time to fix it right now. I need a lot more points, if I can get some great coup somewhere, I'll reassess, but right now, I need sente and to grow some sharp teeth.
If he handles this as well as he has the rest of the game, I will have no chance to recover, and that will be fine, at least I'll have gone down in some sort of blaze of glory.
Re: 103. EdLee vs topazg
Posted: Tue Mar 22, 2011 7:16 am
by Joaz Banbeck
If I take two stones...
$$Wm64 Prisoners :b1:
$$ ----------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . X X X . X . O . . B . . B . . X O . |
$$ | . . O O O O . . . , . . . O X X O . . |
$$ | . O . . . . . . . . . . . . X O . O . |
$$ | . . . . . . . . . . . . . . . O O . . |
$$ | . O X X . O . . . . . . . . . . . . . |
$$ | . O O . . O X . . . . . . . . O X . . |
$$ | . X . X . O X O . . . . . . . . X . . |
$$ | . . . X . X O O . , . . . . 2 , . . . |
$$ | . . . . . . X . . . . . . . . . X . . |
$$ | . . X . . X . . O . . . . . . . . . . |
$$ | . X . . . . . . . . . . . . . 1 O . . |
$$ | . X O . . . . . . . . . . . . O X . . |
$$ | . O . . . . . . . . . . . . . X X . . |
$$ | . . . O . . . . . O . . O . . , . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ----------------------------------------