and W150. The first went badly, the second was a total disaster.
? That seems to just work to seal in his stones. 
You may want to play the small knight's move to get sente.
Alternatively, perhaps you should approach the top left distantly now and leave the top right to its fate?
It's good that you end in sente, but this does seem to be playing according to white's wishes.
What the heck is white doing?
This is painful for white, as now his topside looks quite thin next to that black wall. Chinese fuseki fail. - Uh... here I was simply protecting the cutting point and I don't think I lot more thought went into it than that.... I'm not sure if I'd have spotted that if you didn't point it out. - Normally if I back off I'll play high if I have any 3rd line stones at all on the side, and low if not. I don't know how good that is though. - Finding the biggest move is a definite issue I have, I was thinking finish (sort of) the joseki and making an extension from the enclosure was good. It does concentrate my stones all on one side though. - My thought processes in these situations go somethng like "Corner... territory... yay." 
Perhaps jump out and then J4 if W defends on the left? - I was getting worried throughout this whole thing, I was not feeling confident in how much my stones were having to run while watching that lower left W moyo form. - This still looks worrying to me, that W area looks huge at first glance, though counting up it's "only" around 40 points. and , that's not a bad line of thinking in general. One other consideration, though, is that the small knight's defense tends to end in sente for black, and the one-space jump defense tends to be more (but not absolutely) gote. I suggested the small knight's move in order to take sente to approach on the left, but as you mentioned, it doesn't balance quite as nicely with the other stones on the right side. Both moves for are playable, though. With the one space jump, you can still take sente, and I think should in this case, but at some point you'll want to come back and look at the weakness there.
) and my invasions are still not up to scratch.
As long as you are aware of it, you'll get over it eventually. You have to get to imagine eyeless walls as just "sticks." You can try to lay "sticks" on the board beside real thickness and then play moves that threaten to remove the base of said "stick."PeterN wrote:
Urgent fuseki lecture was fun, but highlighted yet again a weird blind spot I have. Walls are invincible. Doesnt matter if they have no eyes, doesn't matter if they have no base. To my mind they are invincible until it's literally impossible for them to make life.
:D:D I meant laying just lines of stones and imagining attacking them :D:D:D
I've gotten most of the way through this book in just a single week, 329 problems in, 18 of those wrong, and around half of those I shouldn't have got wrong but was going through a tad too fast really. Just how many of my games are lost by carelessness? And how many won by carelessness on my opponent's side? 
)
and 
did you consider attaching under at B11 ?
did you consider the other direction M17 ?
cuts at o3, did you consider giving up the corner for o8 ? Your wanted to build your right-side moyo anyway. 
o8 was huge.
seems wrong direction. Did you consider M8 ?
P7 was also important. 
(or possibly before), you had already lost the spirit.
at G3, and 
at K4 open skirt,, and subsequently,
broken shape for B. )
was not a good combination with K4;