TIM82 wrote:Just some musings on the bottom right corner upto black. Not sure of these, take with a grain of salt.
Regarding
I thought this was great for black too, but I was told by AGA 5 and 6 dans that black should extend farther, because with the hane white's group isn't really thick yet, and white would be happy enough to get the checking extension without feeling too overconcentrated at this point. Of course, white proceeded to make this move look good with the approach immediately afterwards. If black goes one point more, the two space jump checking extension looks much more severe, and the weakness around the captured stone means that black doesn't have to worry much if white tries to invade between the corner and side stones.As for the hane, I wanted to prevent white from building the right side too easily while climbing a line higher if he started pushing. White owes the move in the lower left at some point, so I saw the right side and the double approach as somewhat miai.
seems to be the problem move, as white could have taken the upper left corner in sente at any time. White 102 at N8 may or may not have been too deep. We discussed giving up the 4 black stones in exchange for a better reduction, as well as a bunch of other ways to fight afterwards without deciding things clearly.
. It's big, but I'd be tempted by J4 instead. Black's most serious "weakness", if you could call it that, is the cut at N4. Cutting at N16 is nothing like as important, as is seen later, because of poor shape in the corner.
really can't be right in the middlegame. It would make sense to cut at M16 now.
just looks like an overplay.
seem slow to me, but they are undeniably large, so I could be wrong. If B played next at G5, I would evaluate these local exchanges as favorable for B, since the stones surrounding the corner cooperate nicely with the moyo above.
may be the last big point in the opening, but to me it still looks like a relatively unimportant area, with no great potential for either side to make much territory. I would be inclined to complete the B moyo around M10. Again I could be wrong, so I would be interested in other opinions on this.
is very nice. The continuation through
gave W a great base to reduce the B moyo, while B only got the possibility of a moderately severe invasion at C14.
seems very slow. The threat to cut off the B stone at M17 is not large (as was seen later in the game). Why not continue marching into the B moyo?
through
seem like the wrong direction to me, forcing W into the B moyo. B loses more territory to the right than he gains below.
through :w110: was an interlude which ended up as a big trade but cost sente. It was necessary to try to live with the center stones.