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[go]$$Wcm31 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . O . . . . . . X . . . |
$$ | . . X O . . O . O X X X . X . . O . . |
$$ | . . . X O O . . X O . O . . . O . . . |
$$ | . . . X X O . X . O . . . X . . . . . |
$$ | . . . . O X . . . . . . . . . O . . . |
$$ | . . . a . X . X . . . . . X . . . . . |
$$ | . . . . b . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . O . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . 5 . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . X . . . |
$$ | . . X . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
Black's move preserves the cut on my stones very well for now, but leaves some interesting aji at a) and b). There's some potential to catch some stones and make the corner much bigger. However it is pretty poisonous to try capturing these stones in gote right now. b) shows it most egregiously:
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[go]$$Wcm31 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . O . . . . . . X . . . |
$$ | . . X O . . O . O X X X . X . . O . . |
$$ | . . . X O O . . X O . O . . . O . . . |
$$ | . . . X X O . X . O . . . X . . . . . |
$$ | . . 9 7 O X . . . . . . . . . O . . . |
$$ | . . 0 8 6 X . X . . . . . X . . . . . |
$$ | . . . . 5 . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . O . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . X . . . |
$$ | . . X . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
Soooooo. many. sente. It doesn't even stop here, but Black is already very primed to develop the outside.
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[go]$$Wcm31 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . O . . . . . . X . . . |
$$ | . . X O . . O . O X X X . X . . O . . |
$$ | . . . X O O . . X O . O . . . O . . . |
$$ | . . . X X O . X . O . . . X . . . . . |
$$ | . . . . O X . . . . . . . . . O . . . |
$$ | . . 8 5 . X . X . . . . . X . . . . . |
$$ | . . 7 6 . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . O . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . X . . . |
$$ | . . X . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
The kosumi is a bit more interesting to play sooner rather than later; it offers to take a bigger piece of territory and creates more cutting points for Black outside, but the direction of play isn't uniform. Black has a tesuji to connect, which I've shown. Whatever White plays next he cannot save the cutting stone. White does get to choose which stone to catch, however:
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[go]$$Wcm35 Prisoner Count: B-1 W-1 37 captured at a), capture at b)
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . O . . . . . . X . . . |
$$ | . . X O . . O . O X X X . X . . O . . |
$$ | . . . X O O . . X O . O . . . O . . . |
$$ | . . . X X O . X . O . . . X . . . . . |
$$ | . . . 6 b X . . . . . . . . . O . . . |
$$ | . . 4 1 8 X . X . . . . . X . . . . . |
$$ | . . 3 a 7 . . . . . . . . . . . . . . |
$$ | . . . 5 . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . O . . . |[/go]
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[go]$$Wcm35 Prisoner Count: B-1 W-1 39 captured at a), capture at b)
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . O . . . . . . X . . . |
$$ | . . X O . . O . O X X X . X . . O . . |
$$ | . . . X O O . . X O . O . . . O . . . |
$$ | . . . X X O . X . O . . . X . . . . . |
$$ | . . 5 8 b X . . . . . . . . . O . . . |
$$ | . 7 a 1 6 X . X . . . . . X . . . . . |
$$ | . . 3 2 . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . O . . . |[/go]
I can choose low or high, in other words. I have to be content with at least one should I actually try to capture.
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[go]$$Wcm31 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . O . . . . . . X . . . |
$$ | . . X O . . O . O X X X . X . . O . . |
$$ | . . . X O O . . X O . O . . . O . . . |
$$ | . . . X X O . X . O . . . X . . . . . |
$$ | . . . . O X . . . . . . . . . O . . . |
$$ | . . . . . X . X . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . O . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . 5 a . . . . . . . . . . . . O . . |
$$ | . . d c . . . . . . . . . . . . . . . |
$$ | . . . b e . . . . , . . . . . X . . . |
$$ | . . X . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
I'm picking this move because it's reasonably easy to work with either. Just picture the results in either of the two diagrams over this one. The low one can get a linking move, and the high one can possibly go without a connecting extension.
I don't want to be undercut by playing something like

at a), or clomping at b) to get a gote, centrally facing, undercut position, and I fear that if I play c) or d), then Black e) is a bit in-my-face; Black can easily enlarge the structure while flattening me by pushing up, and can easily take a very big territory if I push-to-remove-the-push. I figure that if I play from the other side Black can still use the thickness pretty well since it's not too excruciatingly painful to give up the stones, and since I will tend to lose sente making a meager base on the bottom so Black can play an extra helping move wherever he likes even after helping the lower left corner with a move on the left. If I don't play in this area Black will enlarge both sides with something like a).
Also there's some trickiness depending on the way the aji is settled in this position:
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[go]$$Wcm35 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . O . . . . . . X . . . |
$$ | . . X O . . O . O X X X . X . . O . . |
$$ | . . . X O O . . X O . O . . . O . . . |
$$ | . . . X X O . X b O . . . X . . . . . |
$$ | . . . . O X a . . . . . . . . O . . . |
$$ | . . . 4 c X d X . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . O . . . |
$$ | . . 3 . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . 1 . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . 2 . . . . , . . . . . X . . . |
$$ | . . X . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
Like this I can still probe the connection at a). If Black protects against the offer to cut at b), I'll have stuff like c), offering to march out at d) even if Black blocks.
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[go]$$Wcm35 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . O . . . . . . X . . . |
$$ | . . X O . . O . O X X X . X . . O . . |
$$ | . . . X O O . . X O . O . . . O . . . |
$$ | . . 5 X X O . X . O . . . X . . . . . |
$$ | . . . 3 O X a . . . . . . . . O . . . |
$$ | . . . 1 2 X . X . . . . . X . . . . . |
$$ | . . . 4 b . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . O . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . , . . . . . X . . . |
$$ | . . X . . . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
In this sort of local continuation also you can see the cut b) asking about the cut at a).
So I feel pretty good about playing this move, as good as I can for not having a comprehensive understanding of the game, and being unable to deal with planning a positionally complicated middlegame in a systematic fashion. In terms of gross directional switches...
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[go]$$Wcm35 Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . . . . . O . . . . . . X . . . |
$$ | . . X O . . O . O X X X . X . . O . . |
$$ | . . . X O O . . X O . O . . . O . . . |
$$ | . . . X X O . X . O . . . X . . . . . |
$$ | . . . . O X . . . . . . . . . O . . . |
$$ | . . . . . X . X . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . a . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . O . . . |
$$ | . . c . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . 1 . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . , . . . . . X . . . |
$$ | . . X . b . . . . . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
If White invades me I'm quite likely just going to try to quickly connect my stones and not worry about getting territory too much. If Black tenukis to play a gote, a double approach should be severe enough to help me get a position on both sides. I'm thinking it's a bit difficult to pincer effectively right now, too, with that double approach still available and lingering aji in the the insufficiently fixed shape up top. I'd want Black to choose complicated paths anyway since I still need Black mistakes to win the game, so even if I'm wrong for a deep and complicated reason...