As I've already PMed to Bill, our thinking styles seem to differ a lot:
I see "small" groups, but not what bigger moves do or might do.
OK, I see now what Kirby is doing.
I've tried imagining I was a child and this was a picture I want to colour in.
Kirby's stones would be easy to colour in, mine would not.
My intention with this move is to say "I'm not dead yet."
I considered
- Click Here To Show Diagram Code
[go]$$Wm31
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$$ | . . . . . . . X . . . . . . . . . . . |
$$ | . . . . . O X . . . . . X X . . . . . |
$$ | . . . . . . O X X . . . X O X . . . . |
$$ | . . . X . . O . . X . . X O . X . . . |
$$ | . . . . . . . . . . . . O . O X . . . |
$$ | . . . O . O . . . . . . . O X X O . . |
$$ | . . . . . . . . . . X O . . . . . . . |
$$ | . . . . . . . . . . O . . 2 . . X . . |
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$$ | . . . X . 1 . . . X . . . . . X . . . |
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because it might create an area to colour in in the right.
However, since Kirby's upper right group has broken through to the centre, it would not help my L13 stone anyway.
I also considerd
- Click Here To Show Diagram Code
[go]$$Wm31
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$$ | . . . . . . . X . . . . . . . . . . . |
$$ | . . . . . O X . . . . . X X . . . . . |
$$ | . . . . . . O X X . . . X O X . . . . |
$$ | . . . X . . O . . X . . X O 2 X . . . |
$$ | . . . . . . . . . . . . O . O X . . . |
$$ | . . . O . O . . . . . . . O X X O . . |
$$ | . . . . . . . . . . X O . . . . . . . |
$$ | . . . . . . . . . . O . . . . . X . . |
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$$ | . . . X . 1 . . . X . . . . . X . . . |
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$$ | . . . X . . . . . X . . . . . X . . . |
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but I think on the whole it would not trouble Kirby much (because he has seen it but does not play there).
I think Kirby might go on devouring the board, maybe like so

- Click Here To Show Diagram Code
[go]$$Wm31
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$$ | . . . . . . . X . . . . . . . . . . . |
$$ | . . . . . O X . . . . . X X . . . . . |
$$ | . . . . . . O X X . . . X O X . . . . |
$$ | . . . X . . O . . X . . X O 2 X . . . |
$$ | . . . . . . . . . . . . O . O X . . . |
$$ | . . . O . O . . . . . . . O X X O . . |
$$ | . . . . . . . . . . X O . . . . . . . |
$$ | . . . . . . . . . . O . . . . . X . . |
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$$ | . . . X . 1 . . . X . . . . . X . . . |
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$$ | . . . X . 3 . . . X . . . . . X . . . |
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and not mind very much if I get what... 6 points? while he gets the rest of the board, because I refuse to play there. Okay, I still do.
I could play there (32), there (34), there (36)... whatever...

- Click Here To Show Diagram Code
[go]$$Wm31
$$ -----------------------------------------
$$ | . . . . . . . X . . . . . . . . . . . |
$$ | . . . . . O X . . . . . X X . . . . . |
$$ | . . . . . . O X X . . . X O X . . . . |
$$ | . . . X . . O . . X . . X O . X . . . |
$$ | . . . . . . . . . . . . O . O X . . . |
$$ | . . . O . O . . . . . . . O X X O . . |
$$ | . . . . . . . . . . X O . . . . . . . |
$$ | . . . . . . . . . . O . . . . . X . . |
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$$ | . . . X . 1 . . . X . . 4 . . X . . . |
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$$ | . . . O . O . . . 2 . . . . . . . . . |
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$$ | . . . X . 6 . . . X . . . . . X . . . |
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$$ ---------------------------------------[/go]