$$Wcm71 In the lids: B-
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . . . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . O . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . X O O . . O . X . . . . . X . . . |
$$ | . . X X O . . . . 5 . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . . . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . O . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . X O O . . O . X . . . . . X . . . |
$$ | . . X X O . . . . 5 . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$Wcm71 In the lids: B-
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . . . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . O . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . X O O . . O . X . . . . . X . . . |
$$ | . . X X O . . . . 5 . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
This defense is pretty much induced by Black's last move. My first thought is for Black to try for for sente, then maybe try the invasion:
But I may try tenuki instead of capturing with b), and reinforce the left...
Things start to look iffy for Black. I can still probably live with the bottom group, Black got thick, but too close to strength and
reduces the Black potential already. So, Black might not want to play this if he's careful. This is ok, because then he will be choosing a softer reply, like nobi directly:
or a), or even softer, in a local sense: tenuki. In any event, I will have better followups locally, and be easier to take sente if Black does respond.
Trying to play
on the right side immediately is very bad, I suspect:
I still may be able to squeeze out life, as in the other variation, but Black's territory is a far better prospect, now, with a local continuation at a). Basically, I'd prefer to give bottom territory to Black in an overconcentrated format in my gote, rather than get squeezed to nothing on the bottom in Black's sente, and allow Black much more useful thickness like this. Note that this is only the start of the attack; it doesn't show half of how much thicker Black will get.
In any case, we'll see what Black does, as always. I'm starting to feel that I may be getting back something of an edge with these recent midgame moves. Black's move took territory and got strong toward my bottom group, but is not so big in itself provided I can keep the sente hane into endgame, and provided that I do a good job foiling Black's efforts to profit from this counterattack on the bottom in these next few moves.
$$Wcm71 In the lids: B-
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . a . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . O . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . X O O . . O 7 X 0 . . . . X . . . |
$$ | . . X X O . . . 6 O 8 . . X . . . . . |
$$ | . . . . . . . . b 9 . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . a . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . O . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . X O O . . O 7 X 0 . . . . X . . . |
$$ | . . X X O . . . 6 O 8 . . X . . . . . |
$$ | . . . . . . . . b 9 . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$Wcm71 In the lids: B-
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . a . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . O . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . X O O . . O 7 X 0 . . . . X . . . |
$$ | . . X X O . . . 6 O 8 . . X . . . . . |
$$ | . . . . . . . . b 9 . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
But I may try tenuki instead of capturing with b), and reinforce the left...
$$Wcm81 In the lids: B-
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . . . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . 1 . O . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . X O O . . O O X X . . . . # . . . |
$$ | . . X X O . . 5 X a X . . # . . . . . |
$$ | . . . 7 . . . 3 2 a 4 . . . . . . . . |
$$ | . . . . . . . . . 6 . . . . . . . . . |
$$ ---------------------------------------
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . . . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . 1 . O . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . X O O . . O O X X . . . . # . . . |
$$ | . . X X O . . 5 X a X . . # . . . . . |
$$ | . . . 7 . . . 3 2 a 4 . . . . . . . . |
$$ | . . . . . . . . . 6 . . . . . . . . . |
$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$Wcm81 In the lids: B-
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . . . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . 1 . O . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . X O O . . O O X X . . . . # . . . |
$$ | . . X X O . . 5 X a X . . # . . . . . |
$$ | . . . 7 . . . 3 2 a 4 . . . . . . . . |
$$ | . . . . . . . . . 6 . . . . . . . . . |
$$ ---------------------------------------[/go]
Things start to look iffy for Black. I can still probably live with the bottom group, Black got thick, but too close to strength and
reduces the Black potential already. So, Black might not want to play this if he's careful. This is ok, because then he will be choosing a softer reply, like nobi directly:$$Wcm71 In the lids: B-
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . . . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . O . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . X O O . . O a X 6 . . . . X . . . |
$$ | . . X X O . . . . 5 . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . . . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . O . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . X O O . . O a X 6 . . . . X . . . |
$$ | . . X X O . . . . 5 . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$Wcm71 In the lids: B-
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . . . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . O . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . X O O . . O a X 6 . . . . X . . . |
$$ | . . X X O . . . . 5 . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
or a), or even softer, in a local sense: tenuki. In any event, I will have better followups locally, and be easier to take sente if Black does respond.
Trying to play
on the right side immediately is very bad, I suspect:$$Wcm71 In the lids: B-
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . . . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . 8 . . . . . 5 . O . . |
$$ | . . . X . . . . . . . . . a . . . . . |
$$ | . . X O O . . O . X . . . . . X . . . |
$$ | . . X X O . . 7 6 . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . . . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . 8 . . . . . 5 . O . . |
$$ | . . . X . . . . . . . . . a . . . . . |
$$ | . . X O O . . O . X . . . . . X . . . |
$$ | . . X X O . . 7 6 . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$Wcm71 In the lids: B-
W- 
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . O O . . . . . O . . . . . . X . . . |
$$ | . O X O . . O . O X X X . X . . O . . |
$$ | . X X X O O . . X O . O . . . O . . . |
$$ | . . . X X O X X . O . . . X . . . . . |
$$ | . . . X . X O . . . . . . . . O . . . |
$$ | . . X O X X . X . . . . . X . . . . . |
$$ | . . O . O . . . . X . . . . . O . . . |
$$ | . . . O . . . O . . . . . . . . . . . |
$$ | . . O , O O . . . , . . . . . O . . . |
$$ | . . X X X O X . . . . . . . . . . . . |
$$ | . . . . X X O . . . . . . . . . . . . |
$$ | . . . . O X . . . . . . . . . . . . . |
$$ | . . O . X . . . 8 . . . . . 5 . O . . |
$$ | . . . X . . . . . . . . . a . . . . . |
$$ | . . X O O . . O . X . . . . . X . . . |
$$ | . . X X O . . 7 6 . . . . X . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
I still may be able to squeeze out life, as in the other variation, but Black's territory is a far better prospect, now, with a local continuation at a). Basically, I'd prefer to give bottom territory to Black in an overconcentrated format in my gote, rather than get squeezed to nothing on the bottom in Black's sente, and allow Black much more useful thickness like this. Note that this is only the start of the attack; it doesn't show half of how much thicker Black will get.
In any case, we'll see what Black does, as always. I'm starting to feel that I may be getting back something of an edge with these recent midgame moves. Black's move took territory and got strong toward my bottom group, but is not so big in itself provided I can keep the sente hane into endgame, and provided that I do a good job foiling Black's efforts to profit from this counterattack on the bottom in these next few moves.
, I instantly saw this as a move to expect at some point. I knew that if I simply haned and let him pull back, I feel a bit overconcentrated. The knight's move attacking the entire group or the cap (H6 or J6) were my other two considerations for my last move. They would have strongly affected follow up sequences to this attachment.

or
which increase my losses on the outside and reduce my liberties with the corner group, the correct timing is to start first with the cut in the corner, and force Black into a decision there.