Keywords: Question

Icepick: On Table building, it was suggested that Black should cut at either point a in this type of shape:

Table play  

The begining  

I attempted this early on in quick game yesterday, with poor results.

The Rest  

B3 seems like the only reply to W2, as the whole point of B1 was to cut, and throwing away the two Black stones go against that.

The ladder on white+circle didn't work, so continuing with a wasn't apealing.

I ended up treating B1 lightly and hoping it would be useful later.

Better play?  

My opponent and I discussed this afterwards, and came to the conclusion that B7 in the first diagram was sub-par, even though it makes a pretty shape. Either B7 or at a would have been better.

unkx80: Two comments. Surely B7 is better in the last diagram, but I guess the hane of W8 looks like an overplay?


I would say that W8 here should suffice.

Is this all that bad?  

If the outside does matter, is this all that bad? After B9, if White a, then Black b.


Andrew Grant: OK, I realise you wanted to try out the table shape, but really the a-b and c-d exchanges only serve to strengthen White. Just playing B3 is good enough. If White answers at c the white area is still only a moyo, nothing to panic about - depending on the outside position a reduction at e may be feasible, for instance. Just because your sequence makes a good shape it doesn't make it best.

Bill: To second what Andrew says, suppose that you had already made the one space jump. Now you would not play the following exchange.


Here is another idea for Black's play, though it is a bit advanced, and that is to make a probe in the corner and base your play on the side on White's response.[1]

Probe: Corner Aji  

If W2 extends, Black can jump at B3. Now, even if W4, Black has some aji in the corner. If B3 - W4 first, White would not respond to B1 at W2.

Probe: Side Aji  

If White protects the corner with W2 and W4, Black has some aji on the side to use against White's lone stone.

Probe: Side Aji (ii)  

Play might continue this way. Black plays tsuke-nobi and then cuts at B7 to create some more aji. Now:

Probe: Side Aji (iii)  

Black can turn the corner on White with B1 - B5. White cannot respond too strongly, because of the aji of the black+circle stones.

And in the while-we-are-at-it department, Black's initial extension was too close.[2]

One space more  

Black should extend all the way to B1. Now W2 is small, and Black can be satisfied with B3. If White plays elsewhere, Black threatens to extend to a.

[1] Compare with the page Reduce high enclosure.

[2] There are reasons why this side formation isn't common; but the data bear out Bill's comment that B1 in the second diagram of the page is an underplay. Charles

BQM107 last edited by BillSpight on August 18, 2003 - 16:25
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