Continuing with my analysis, one of the issues with a pincer in the top right is that it seems to be an all-out strategy, banking on influence to win a game where black has no solid territory and white has all four corners. I'm leery of my ability to seal off the center sufficiently to accomplish this.
Any extension or other reinforcing move for the corner, though, is giving white a base on the side, so it's critical that black takes into account the lower right and has a plan concerning it before moving in the top right.
$$Bm1
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$$ | . . O O O . . . . . . . . . . . . . . |
$$ | . O . , O . . X . , . . . . . X . . . |
$$ | . X O O X . . . . . . . . . . 5 3 . . |
$$ | . . . X . . . . . . . . . . 4 1 W . . |
$$ | . . X . . . . . . . . . . . 6 2 . . . |
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$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . X X . . . . . . . . . . X . . . |
$$ | . . X X O X X . . , . . . . . , 9 . . |
$$ | . . O O O O . . . . . . . . . O 7 . . |
$$ | . . . . O . . . . . . . . . 0 . 8 . . |
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$$ +---------------------------------------+
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[go]$$Bm1
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$$ | . . O O O . . . . . . . . . . . . . . |
$$ | . O . , O . . X . , . . . . . X . . . |
$$ | . X O O X . . . . . . . . . . 5 3 . . |
$$ | . . . X . . . . . . . . . . 4 1 W . . |
$$ | . . X . . . . . . . . . . . 6 2 . . . |
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$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . X X . . . . . . . . . . X . . . |
$$ | . . X X O X X . . , . . . . . , 9 . . |
$$ | . . O O O O . . . . . . . . . O 7 . . |
$$ | . . . . O . . . . . . . . . 0 . 8 . . |
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$$ +---------------------------------------+[/go]
$$Bm11
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$$ | . . O O O . . . . . . . . . . . . . . |
$$ | . O . , O . . X . , . . . . . X . . . |
$$ | . X O O X . . . . . . . . . . X X . . |
$$ | . . . X . . . . . . . . . . O X O . . |
$$ | . . X . . . . . . . . . . . O O . . . |
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$$ | . . . , . . . . . , . . . . . , 1 . . |
$$ | . . X . . . . . . . . . . . . . . . . |
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$$ | . . . . . . . . 0 . . . . . . . . . . |
$$ | . . O . . 3 . . . . . . . . . . . . . |
$$ | . . . X X 2 4 6 8 9 . . . . . X . . . |
$$ | . . X X O X X 5 7 , . . . . . , X . . |
$$ | . . O O O O . . . . . . . . . O X . . |
$$ | . . . . O . . . . . . . . . W . O . . |
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$$ +---------------------------------------+
- Click Here To Show Diagram Code
[go]$$Bm11
$$ +---------------------------------------+
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$$ | . . O O O . . . . . . . . . . . . . . |
$$ | . O . , O . . X . , . . . . . X . . . |
$$ | . X O O X . . . . . . . . . . X X . . |
$$ | . . . X . . . . . . . . . . O X O . . |
$$ | . . X . . . . . . . . . . . O O . . . |
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$$ | . . . , . . . . . , . . . . . , 1 . . |
$$ | . . X . . . . . . . . . . . . . . . . |
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$$ | . . . . . . . . 0 . . . . . . . . . . |
$$ | . . O . . 3 . . . . . . . . . . . . . |
$$ | . . . X X 2 4 6 8 9 . . . . . X . . . |
$$ | . . X X O X X 5 7 , . . . . . , X . . |
$$ | . . O O O O . . . . . . . . . O X . . |
$$ | . . . . O . . . . . . . . . W . O . . |
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$$ +---------------------------------------+[/go]
The tsuke-osae or attach-block seems promising at first, giving black a solid position on the right and securing the corner, but it activates the cut aji to some degree for white since the ladder no longer works. This is one way the cut could play out. I think black could profit well in the running fight with territory on the left side, and it looks like it kills a lot of white's potential on the bottom.
$$Bm11
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$$ | . O . , O . . X . , . . . . . X . . . |
$$ | . X O O X . . . . . . . . . . X X . . |
$$ | . . . X . . . . . . . . . . O X O . . |
$$ | . . X . . . . . . . . . . . O O . . . |
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$$ | . . . , . . . . . , . . . . . , 1 . . |
$$ | . . X . . . . . . . . . . . . . . . . |
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$$ | . . O 8 9 3 . . . . . . . . . . . . . |
$$ | . 5 6 X X 2 . . . . . . . . . X . . . |
$$ | . 4 X X O X X . . , . . . . . , X . . |
$$ | . 7 O O O O . . . . . . . . . O X . . |
$$ | . . . . O . . . . . . . . . W . O . . |
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- Click Here To Show Diagram Code
[go]$$Bm11
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$$ | . O . , O . . X . , . . . . . X . . . |
$$ | . X O O X . . . . . . . . . . X X . . |
$$ | . . . X . . . . . . . . . . O X O . . |
$$ | . . X . . . . . . . . . . . O O . . . |
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$$ | . . X . . . . . . . . . . . . . . . . |
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$$ | . . O 8 9 3 . . . . . . . . . . . . . |
$$ | . 5 6 X X 2 . . . . . . . . . X . . . |
$$ | . 4 X X O X X . . , . . . . . , X . . |
$$ | . 7 O O O O . . . . . . . . . O X . . |
$$ | . . . . O . . . . . . . . . W . O . . |
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$$ +---------------------------------------+[/go]
This cut clearly doesn't work out directly for white because his liberties are too short. Black could continue by solidifying the upper left and reducing the bottom through attacking. There is a lot of aji here though.
Perhaps white would continue in a different manner after 11...
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$$ | . O . , O . . X . , . . 0 . . X . . . |
$$ | . X O O X 2 . . . . . . . . . X X . . |
$$ | . . 6 X 3 4 . . . . . . . . O X O . . |
$$ | . 8 X 7 . 5 . . . . . . . . O O . . . |
$$ | . 9 . . . . . . . . . . . . . . . . . |
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$$ | . . . , . . . . . , . . . . . , 1 . . |
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[go]$$Bm1
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$$ | . . O O O . . . . . . . . . . . . . . |
$$ | . O . , O . . X . , . . 0 . . X . . . |
$$ | . X O O X 2 . . . . . . . . . X X . . |
$$ | . . 6 X 3 4 . . . . . . . . O X O . . |
$$ | . 8 X 7 . 5 . . . . . . . . O O . . . |
$$ | . 9 . . . . . . . . . . . . . . . . . |
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$$ | . . . , . . . . . , . . . . . , 1 . . |[/go]
Well, that's not great for black... Perhaps black needs to use sente to take f15 instead of r10 like so:
$$Bm11
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$$ | . . O O O . . . . . . . . . . . . . . |
$$ | . O . , O . . X . , . . . . . X . . . |
$$ | . X O O X 1 . . . . . . . . . X X . . |
$$ | . . . X . . . . . . . . . . O X O . . |
$$ | . . X . . . . . . . . . . . O O . . . |
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$$ | . . X . . . . . . . . . . . . . 2 . . |
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$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . 5 7 X X . . . . . . . . . . X . . . |
$$ | . 4 X X O X X . . , . . . . . , X . . |
$$ | . 6 O O O O 3 . . . . 8 . . . O X . . |
$$ | . . . . O . . . . . . . . . W . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
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[go]$$Bm11
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$$ | . . O O O . . . . . . . . . . . . . . |
$$ | . O . , O . . X . , . . . . . X . . . |
$$ | . X O O X 1 . . . . . . . . . X X . . |
$$ | . . . X . . . . . . . . . . O X O . . |
$$ | . . X . . . . . . . . . . . O O . . . |
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$$ | . . X . . . . . . . . . . . . . 2 . . |
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$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . 5 7 X X . . . . . . . . . . X . . . |
$$ | . 4 X X O X X . . , . . . . . , X . . |
$$ | . 6 O O O O 3 . . . . 8 . . . O X . . |
$$ | . . . . O . . . . . . . . . W . O . . |
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$$ +---------------------------------------+[/go]
This seems pretty playable for both sides. Black will probably have to take care of the bottom right group next, and the cut at f5. White will probably try to reduce the left, but the top right group is strong so black can't easily attack it. Perhaps the previous diagram was better?
I didn't look at the attach-extent joseki because it ends in gote for black, which I think is the kiss of death in this position. The last thing I want to look at is the simple keima response.
$$Bm1
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$$ | . . O O O . . . . . . . . 1 . 5 4 . . |
$$ | . O . , O . . X . , . . . . . X . 2 . |
$$ | . X O O X 8 . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . 6 . W . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . 7 . 3 . . |
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$$ | . . X . . . . . . . . . . . . . . . . |
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$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . X X . . . . . . . . . . X . . . |
$$ | . . X X O X X . . , . . . . . , . . . |
$$ | . . O O O O . . . . . . . . . O . . . |
$$ | . . . . O . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+
- Click Here To Show Diagram Code
[go]$$Bm1
$$ +---------------------------------------+
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$$ | . . O O O . . . . . . . . 1 . 5 4 . . |
$$ | . O . , O . . X . , . . . . . X . 2 . |
$$ | . X O O X 8 . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . 6 . W . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . 7 . 3 . . |
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$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . X X . . . . . . . . . . X . . . |
$$ | . . X X O X X . . , . . . . . , . . . |
$$ | . . O O O O . . . . . . . . . O . . . |
$$ | . . . . O . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
White has sente here, but I think that something like 8 is urgent to keep the top left corner meaningful, and it's less urgent for black because the top side stone is closer to black's strong corner now.
I also wouldn't be terribly surprised if white was using the original approach as a probe to figure out what to do in the bottom right. This makes me want to play something more urgent than the keima by instinct, but what might white do? I think a pincer would be problematic as white's approach move is floating a bit.
$$Wm1
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$$ | . . O O O . . . . . . . . B . . . . . |
$$ | . O . , O . . X . , . . . . . X . . . |
$$ | . X O O X . . . . . . . . . . . 8 . . |
$$ | . . . X . . . . . . . . . . . . O . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . 4 . . |
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$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . 6 . . . |
$$ | . . O . . . . . . . . . . . 7 5 2 . . |
$$ | . . . X X . . . . . . . . . . X 1 . . |
$$ | . . X X O X X . . , . . . . . , 3 . . |
$$ | . . O O O O . . . . . . . . . O . . . |
$$ | . . . . O . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+
- Click Here To Show Diagram Code
[go]$$Wm1
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O O O . . . . . . . . B . . . . . |
$$ | . O . , O . . X . , . . . . . X . . . |
$$ | . X O O X . . . . . . . . . . . 8 . . |
$$ | . . . X . . . . . . . . . . . . O . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . 4 . . |
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$$ | . . X . . . . . . . . . . . . . . . . |
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$$ | . . . . . . . . . . . . . . . 6 . . . |
$$ | . . O . . . . . . . . . . . 7 5 2 . . |
$$ | . . . X X . . . . . . . . . . X 1 . . |
$$ | . . X X O X X . . , . . . . . , 3 . . |
$$ | . . O O O O . . . . . . . . . O . . . |
$$ | . . . . O . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]
Something like this maybe? That looks okay for black, and there's a target for attack in the white group on the right.
I think I will go with the keima. I would appreciate any commentary from stronger players on this position for later, as there is nothing that really jumps out at me as the move to play.