97: topazg vs Mark356 Semi-open

EdLee · **#21**

topazg · **#22**

Click Here To Show Diagram Code: [go]$$Bcm1 Prisoner Count: B-0 W-0 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . X , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , O . . | $$ | . . 8 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

What an interesting opening already. I've opted for my normal way of approaching the shimari extension obstruction (or whatever you'd call it). Local expectations are as follows:

Click Here To Show Diagram Code: [go]$$Bcm9 Prisoner Count: B-0 W-0 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . X , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , O . . | $$ | . . W . 2 . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 1 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Click Here To Show Diagram Code: [go]$$Bcm9 Prisoner Count: B-0 W-0 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . 4 . . . , . . . . X , X . . | $$ | . . 2 . . . . . . . . . . . . . . . . | $$ | . . 1 3 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 5 . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , O . . | $$ | . . W . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 6 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Click Here To Show Diagram Code: [go]$$Bcm9 Prisoner Count: B-0 W-0 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . 1 . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . X , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 2 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , O . . | $$ | . . W . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

So, why this side? Well, firstly, both corners are interested in the left hand side. Actually, my "interest" calculations give Black's interest a bit higher than White's (I consider a shimari's secondary extension to be half an interest, and a full interest if already extended the other side, and a 4-4 as having a full interest. A shimari's primary direction I consider 1.5 interests

), so the urgency of a play on the left seems pretty high. The top is also interesting, though slightly less so because Black's shimari is not targeting it quite as strongly as the right. However, as it's a high stone at P16, it's fairly important to get to the top first.

The bottom edge is relatively uninteresting to both sides right now. If White completes his shimari in the lower right it becomes relatively important, and I genuinely considered this move, as miai of the edges is fine for me, especially when I get a sort of double wing formation from doing so which would be nice. However, it increases the interest in the bottom enough that Black might play at the bottom first, and then we end up with this position on the left anyway. Not only that, but even a short approach from this shimari increases in value of Black has a stone on the bottom edge. As a result, and as Black still has to decide on how to handle the lower right, I'm going to leave it for now, and consider my options of what I do with that 4-5 dependent on Black's approach. Because Black has a low shimari in the bottom left with respect to the bottom edge, the urgency of that area feels lower right now.

EdLee · **#23**

Spoiler.

Mark356 · **#24**

Trigger

Click Here To Show Diagram Code: [go]$$Bcm9 Prisoner Count: B-0 W-0 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . 4 . . . , . . . . X , X . . | $$ | . . 2 . . . . . . . . . . . . . . . . | $$ | . . 1 3 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 5 . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , O . . | $$ | . . W 7 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 6 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Aphelion · **#25**

To Mark:

Not for Mark:

topazg · **#26**

Click Here To Show Diagram Code: [go]$$Bcm11 Prisoner Count: B-0 W-0 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . 6 , . . . . . , . . . . . , O . . | $$ | . . O 5 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Spoiler:

Normally, playing into the hane around the head of two stones is a bad thing shape-wise, although there are common josekis that do it explicitly (for example, involving contacting the high approach to a 3-4 stone). So, why here? Well, I've just taken the key shape point locally. If I hane:

Click Here To Show Diagram Code: [go]$$Bcm11 Prisoner Count: B-0 W-0 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . 7 a . . . . . , . . . . . , O . . | $$ | . . O 5 . . . . . . . . . . . . . . . | $$ | . . . 6 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

The cut at "a" is very hard to make work, and White simply must defend his position, allowing Black to force White on the outside and keep sente. White's eyespace here is very low, and is still not settled, so the potential for long term discomfort is high. If I extend (normally a good way of keeping sente), this shape point is still upsettingly good for Black, fixing his group and leaving White without two clear eyes. I could continue my hane as follows:

Click Here To Show Diagram Code: [go]$$Bcm11 Prisoner Count: B-0 W-0 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . 7 9 . . . . . , . . . . . , O . . | $$ | . . O 5 8 . . . . . . . . . . . . . . | $$ | . . a 6 b . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

But here, neither "a" nor "b" are satisfying. The outside influence from "b" doesn't seem to have anywhere to go, and the loss of allowing Black that cut is quite large. Likewise, White connecting at "a" is overconcentrated and I'm not convinced two eyes are formed, let alone the annoyance of Black being able to cut strongly at "b" himself.

So, instead, I opt for a sequence that settles my group completely and undermines his base:

Click Here To Show Diagram Code: [go]$$Bcm11 Prisoner Count: B-0 W-0 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . b 9 . . . . . . . . . . . . . . . . | $$ | . 8 X . . . . . . . . . . . . . . . . | $$ | . . 6 7 . . . . . , . . . . . , O . . | $$ | . . O 5 . . . . . . . . . . . . . . . | $$ | . . 0 . . . . . . . . . . . . . . . . | $$ | . . . . . a . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Now it is relatively hard for Black to seal that group in, and impossible to do so in sente. "a" will be a big move potentially depending on what happens on the bottom edge, and "b" isn't tiny either as it is sente for Black due to my group stability. That's not to say I'd respond locally. If Black plays immediately at "b", I'd respond with "a", but it is still something that has reasonable enough value. The problem is, I need to avoid reductions like this:

Click Here To Show Diagram Code: [go]$$Wcm50 Prisoner Count: B-0 W-0 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | 9 . . . . . . . . . . . . . . . . . . | $$ | 8 7 . . . . . . . . . . . . . . . . . | $$ | 6 5 . O . O . . . , . . . . X , X . . | $$ | 0 4 O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . 2 . . . . . . . . . . . . . . . . . | $$ | . 1 X . . . . . . . . . . . . . . . . | $$ | . O X . . . . . . . . . . . . . . . . | $$ | . . O X . . . . . , . . . . . , O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

As a result, I'm reluctant to play "b" at all if I can avoid it, which in turn makes playing "a" earlier on that little bit larger.

EdLee · **#27**

Click Here To Show Diagram Code: [go]$$Wm14 $$ --------------- $$ | . . . . . . . $$ | . . . . . . . $$ | . . . . . . . $$ | . . . O . O . $$ | . . O . . . . $$ | . . X X . . . $$ | . . . . . . . $$ | . . . . . . . $$ | . . X . . . . $$ | . . . , . . . $$ | . . O . . . . $$ | . . . . . . . $$ | . . . . . . . $$ | . . 1 . . . . $$ | . . . . . . . $$ | . . X , . . . $$ | . . . . X . . $$ | . . . . . . . $$ | . . . . . . . $$ ---------------[/go]

For reference...

EdLee · **#28**

Spoiler. EDIT: Unhidden after :w20:

.

topazg wrote:

I opt for a sequence that settles my group completely and undermines his base:

Click Here To Show Diagram Code: [go]$$Bm11 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 9 . . . . . . . . . . . . . . . . | $$ | . 8 X . . . . . . . . . . . . . . . . | $$ | . . 6 7 . . . . . , . . . . . , O . . | $$ | . . O 5 . . . . . . . . . . . . . . . | $$ | . . 0 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

This may not go according to W's plan:

Click Here To Show Diagram Code: [go]$$Wm1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . 1 X . . . . . . . . . . . . . . . . | $$ | . 5 O X . . . . . , . . . . . , O . . | $$ | 7 4 O X . . . . . . . . . . . . . . . | $$ | . 3 2 . . . . . . . . . . . . . . . . | $$ | . 6 8 . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

This seems a big loss both locally and globally for W.
Also, :b15:

attach does not appear in any pro games (local left-side search in SmartGo).

Magicwand · **#29**

EdLee wrote:

Spoiler

Bill Spight · **#30**

Spoiler:

Click Here To Show Diagram Code: [go]$$Bcm1 Prisoner Count: B-0 W-0 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . X , X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , W . . | $$ | . . 8 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . 9 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

is standard when White has made the extension.

Chew Terr · **#31**

Bill Spight wrote:

:b9: is standard when White has made the extension.

Can you suggest a few white responses to this move? Not sure how to handle it. My mind jumps to P3 or S5 or something, but the first feels loose and the second generous.

Bill Spight · **#32**

Click Here To Show Diagram Code: [go]$$Bcm11 Prisoner Count: B-0 W-0 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . B . . . . . . . . . . . . . . . . | $$ | . . 6 7 . . . . . , . . . . . , O . . | $$ | . . O 5 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

surprised me, as it invites Black to make good shape. (Don't look: Hane at the head of two stones.)

Bill Spight · **#33**

Chew Terr wrote:

Bill Spight wrote:

:b9: is standard when White has made the extension.

Can you suggest a few white responses to this move? Not sure how to handle it. My mind jumps to P3 or S5 or something, but the first feels loose and the second generous.

Later. I don't want to spoil too much. Maybe Black will die.

Chew Terr · **#34**

Bill Spight wrote:

Chew Terr wrote:

Bill Spight wrote:

:b9: is standard when White has made the extension.

Can you suggest a few white responses to this move? Not sure how to handle it. My mind jumps to P3 or S5 or something, but the first feels loose and the second generous.

Later. I don't want to spoil too much. Maybe Black will die.

Fair enough, and probably wise. I'm just eager to see what happens. =D

topazg · **#35**

Bill Spight wrote:

Click Here To Show Diagram Code: [go]$$Bcm11 Prisoner Count: B-0 W-0 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . B . . . . . . . . . . . . . . . . | $$ | . . 6 7 . . . . . , . . . . . , O . . | $$ | . . O 5 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

surprised me, as it invites Black to make good shape. (Don't look: Hane at the head of two stones.

Yeah, I did wonder about just pulling back (see my spoiler comments before), but I'm trusting slightly to me reading here.

Further spoilers:

The real concern I have is Black getting to hane at the head and foot of my two stones, which allowing to happen is normally a sin punishable by death. However, again I'm just going on my reading:

Click Here To Show Diagram Code: [go]$$Bcm19 Prisoner Count: B-0 W-0 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . a . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 5 . . . . . . . . . . . . . . . . | $$ | . W X . . . . . . . . . . . . . . . . | $$ | . . O X . . . . . , . . . . . , O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . 2 1 3 . . . . . . . . . . . . . . . | $$ | . 4 . . . . . . . . . . . . . . . . . | $$ | . . O b . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . a . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

This is at least completely alive, and why I chose it above simply pulling back last move. I'm actually less happy now looking at this position, but alive is good. I also hope to get sente for one of the "a" points, but I need to worry about whether Black can completely seal in with "b". If he can, I probably have to take gote there which makes my decision to play as I have probably poor.

Of course, Black may try to be really ambitious, but this I _do_ have a plan for (albeit one that may not be sound):

Click Here To Show Diagram Code: [go]$$Bcm19 @ $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . a . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 9 . . . . . . . . . . . . . . . . | $$ | . O X 8 0 . . . . . . . . . . . . . . | $$ | . 4 O X . . . . . , . . . . . , O . . | $$ | 6 C O X . . . . . . . . . . . . . . . | $$ | . 2 1 . . . . . . . . . . . . . . . . | $$ | . 5 7 . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Now Black starts to have some interesting problems. Either White gets to play at "a" which looks great to me, or Black does, and the following happens:

Click Here To Show Diagram Code: [go]$$Bcm29 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . 1 . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . O X O O . . . . . . . . . . . . . . | $$ | . O O X . . . . . , . . . . . , O . . | $$ | O . O X . . . . . . . . . . . . . . . | $$ | . O X 2 4 . . . . . . . . . . . . . . | $$ | . X X 3 . . . . . . . . . . . . . . . | $$ | . . O 5 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Click Here To Show Diagram Code: [go]$$Bcm29 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . 1 . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . O X O O . 8 . . . . . . . . . . . . | $$ | . O O X . . . . . , . . . . . , O . . | $$ | O . O X 7 . . . . . . . . . . . . . . | $$ | . O X 2 3 . . . . . . . . . . . . . . | $$ | . X X 4 5 . . . . . . . . . . . . . . | $$ | . . O 6 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Click Here To Show Diagram Code: [go]$$Bcm19 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . 1 . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . O X O O . . . . . . . . . . . . . . | $$ | . O O X . . . . . , . . . . . , O . . | $$ | O . O X 7 . 9 . . . . . . . . . . . . | $$ | . O X 2 3 . . . . . . . . . . . . . . | $$ | . X X 4 6 8 . . . . . . . . . . . . . | $$ | . 0 O 5 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

They all look good for White to me. Which means maybe Black has to let me have "a":

Click Here To Show Diagram Code: [go]$$Bcm19 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . 2 . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . O X O O . . . . . . . . . . . . . . | $$ | . O O X . . . . . , . . . . . , O . . | $$ | O . O X . . . . . . . . . . . . . . . | $$ | . O X . . . . . . . . . . . . . . . . | $$ | . X X . . . . . . . . . . . . . . . . | $$ | . . O 1 . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I think this looks dangerous for Black to me too. So, I think Black just has to squish me against the side and be happy as in my first variation. Problem is, I'd be happy with that as Black too I think, so I'm hardly taking an advantage. However, I'm happy to be settled, that's pretty useful at least, and should be sente hopefully.

topazg · **#36**

Question to stronger players than I (as it is too late to do anything about it - and spoiler until this side is completed):

A or B for White?

A

Click Here To Show Diagram Code: [go]$$Bcm19 A $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . O X . . . . . . . . . . . . . . . . | $$ | . . O X . . . . . , . . . . . , O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X X . . . . . . . . . . . . . . . | $$ | . O . . . . . . . . . . . . . . . . . | $$ | . . O . O . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

B

Click Here To Show Diagram Code: [go]$$Bcm19 B - marked stone could be at "a" points $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . , . . . . . , O . . | $$ | . a O X . . . . . . . . . . . . . . . | $$ | . W a O . . . . . . . . . . . . . . . | $$ | . . a . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Bill Spight · **#37**

topazg wrote:

Question to stronger players than I (as it is too late to do anything about it - and spoiler until this side is completed):

A or B for White?

A

Click Here To Show Diagram Code: [go]$$Bcm19 A $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . O X . . . . . . . . . . . . . . . . | $$ | . . O X . . . . . , . . . . . , O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X X . . . . . . . . . . . . . . . | $$ | . O . . . . . . . . . . . . . . . . . | $$ | . . O . O . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

B

Click Here To Show Diagram Code: [go]$$Bcm19 B - marked stone could be at "a" points $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . , . . . . . , O . . | $$ | . a O X . . . . . . . . . . . . . . . | $$ | . W a O . . . . . . . . . . . . . . . | $$ | . . a . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

None of the above.

Magicwand · **#38**

topazg wrote:

Question to stronger players than I (as it is too late to do anything about it - and spoiler until this side is completed):

A or B for White?

A

Click Here To Show Diagram Code: [go]$$Bcm19 A $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . O X . . . . . . . . . . . . . . . . | $$ | . . O X . . . . . , . . . . . , O . . | $$ | . . O X . . . . . . . . . . . . . . . | $$ | . O X X . . . . . . . . . . . . . . . | $$ | . O . . . . . . . . . . . . . . . . . | $$ | . . O . O . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

B

Click Here To Show Diagram Code: [go]$$Bcm19 B - marked stone could be at "a" points $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . O . . . , . . . . X , X . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . X . . . . . . , . . . . . , O . . | $$ | . a O X . . . . . . . . . . . . . . . | $$ | . W a O . . . . . . . . . . . . . . . | $$ | . . a . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . X , . . . . . , . . . . . , . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Aphelion · **#39**

To Magicwand:

Chew Terr · **#40**

97: topazg vs Mark356 Semi-open

Who is online