OK, but since you got a timid reply, you can play elsewhere, such as the bottom right corner or playing a mini-Chinese on the bottom side. Also, locally D-15 is amusing.
gains nothing.
Extending once more on the third line is bigger than it looks. Later the Black formation becomes a silly clump of stones.Thanks, Bill!Bill Spight wrote:Responses to Sam.
Edit: Corrected a variation, the one that avoids a ko.
I wondered why I couldn't get that move you suggested to work right.
. Any comments appreciated.
you could force and squeeze black at S9 before defending at P12. Afterwards you can let S9 alone and still defend at P12. In the actual game position this makes a big difference since with the additional forcing move black can no more connect his S6 stones (with S9 in place, on black S8 you could play S7 in sente and then T7...). Thus, if you regularly watch out for such forcing moves before defending this will make you at least 3 stones stronger (that's a qualified guess 
).
this looks big and scary, but it's really loose, and there's a lot of aji in the corner that black will have to deal with later. Nothing to worry about.
I'd rather extend down the left side to limit black, maybe to c10. Similarly, at 
, black doesn't extend nearly far enough, so I want to extend to c11 as white. A little closer to lessen the pressure of black's thickness.
, black can connect under by attaching at b10. You can play e8 instead to prevent this and still get out somewhat. That said, this fight is why I didn't want to extend to c10 after .
, one space to the right, on the third line, helps fix a lot of the aji. Also, notice that a few moves later, black is breaking white's shape horribly. This is a sign that something has gone awry.
would probably be better sealing black in at P14, forcing him to live locally, and connecting. When black takes this move, white's split into two and black has no weaknesses. 
)
to capture some Black stones at the expense of your own three stones. But I don't think that's where the game went wrong. the game is at least even. The left side is still the hottest area. Yet Black invades at 
leads to a broken shape at 
and 
invites another broken shape which is accomplished at 
and and allowing Black to cut your position to pieces with ? If you understand why you play these moves, you can probably avoid them next time. Or maybe you did not think of the result after as being problematic?
below, White answers at 
. Black played at 'a' next. But what happens if Black plays 3 below? It looks like White is dead to me. It seems that White has to answer 1 with something like 3.
What, no ladder?
Solid connection.
White saves one stone.
Aji keshi.
to 
there is a ladder, but unfortunately it is white's three stones that are caught in it after one move. I think black's fight should be favourable if white goes the other way as well, so I'm inclined to think the double hane may be an overplay.