I waited till I had a game without too many utterly bone-headed moves before asking for another review. This may be that game. (Probably an illusion I am shortly to be disabused of.)
Any comments, suggestions, advice, or whacks on the head gratefully accepted.
I know I still play too fast, but I'm trying. I already know I badly underestimated the danger of that corner invasion in the endgame.
Review, please?
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Bill Spight
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Re: Review, please?
As you say, White's group in the top right became a problem. 
As should now be obvious,
is quite small. The real question is whether Black can kill the White group in the top right. It is worth playing around with to try to find out.
Where would be a good first move for Black?
As should now be obvious,
is quite small. The real question is whether Black can kill the White group in the top right. It is worth playing around with to try to find out.Where would be a good first move for Black?
. It looks easy for White to make one eye, but can he make two?The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins
Visualize whirled peas.
Everything with love. Stay safe.
At some point, doesn't thinking have to go on?
— Winona Adkins
Visualize whirled peas.
Everything with love. Stay safe.
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Numsgil
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Re: Review, please?
- This looks like it protects the side, but it actually doesn't. Play on the 3rd line if you're trying to secure the territory. O17 or O16 is actually better, though, as it's the natural continuation from the star stone once you have an extension to the middle of the other side. That is, you want to balance short extensions (knight jumps) and long extensions (5 space extensions). Since you're going for a moyo in the center, I think the short extension played high makes the most sense (O16), even though it leaves the corner unprotected. But either is playable I think.
, 
, 
are all smaller than finishing the bottom right corner. A 3-4 stone is unbalanced, and needs another move ASAP.
- Right idea, but the wrong side. Both white corners are pretty strong. But you have some neighboring strong-ish stones if you start this more towards the bottom. eg: C9 maybe, since it also aims at the B6 weakness. And then you can run out towards the center and find friendly stones pretty soon. Once your invasion is secure you can still aim at invading the top, since there's a region of 21 empty spaces (F17 to M17) with a hole in the roof. On the other hand white might be able to secure most of his moyo if you invade at C9, so I could be wrong -
Inkwolf
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Re: Review, please?
Numsgil wrote::b13: - This looks like it protects the side, but it actually doesn't. Play on the 3rd line if you're trying to secure the territory.
I've been told, though, that it's bad to have everything in a straight line because it's easier to cut. I suppose I could play lower, but it's hard to resist the desire to grab just a little more.
O17 or O16 is actually better, though, as it's the natural continuation from the star stone once you have an extension to the middle of the other side. That is, you want to balance short extensions (knight jumps) and long extensions (5 space extensions). Since you're going for a moyo in the center, I think the short extension played high makes the most sense (O16), even though it leaves the corner unprotected. But either is playable I think.
Thanks, I will bear your advice in mind next time I play.
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EdLee
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Yes, but it's a shape problem. Just for fun, here are the search resultsInkwolf wrote:I've been told, though, that it's bad to have everything in a straight line because it's easier to cut.
I suppose I could play lower, but it's hard to resist the desire to grab just a little more.
from 50,000+ pro games for the local patterns -- guess the number of hits
:
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Inkwolf
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Re: Review, please?
Thanks, Ed, those are some interesting statistics. It's probably safe to assume the more popular shapes are more popular because they're the most effective.
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Numsgil
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Re: Review, please?
The problem is that the extra high stone doesn't protected the side territory at all. Well, maybe a teeny, tiny bit. It looks intimidating to invade, but any sort of skilled opponent should have little trouble invading that side effectively. If that stone is on the 3rd line, the side is almost guaranteed territory, because an invading stone doesn't have any room to make life (though it doesn't protect the corner at all, which is why the small knight's move is often preferred).