77: robinz[12k] v. DIV[12k]

robinz · Post by **robinz** » Thu Oct 28, 2010 2:51 am

Click Here To Show Diagram Code: [go]$$Wcm34 robinz vs DIV - Move 34; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . 1 . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Well, my first reaction to my opponent's move was that it was solid, but slow and not very threatening, so I was happy for him to have made in. On further analysis, though, it appears that it's a rather good move, which gives me a lot to think about :sad:

It's good because I hadn't realised just how many of my tactical resources in the now-developing fight were based on the weakness of his R9 stone, which has of course now disappeared. In particular, black is now threatening to connect his two groups with a play at S8:

Click Here To Show Diagram Code: [go]$$Bc robinz vs DIV - Move 34; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . 4 O 1 . | $$ | . . . . . . . . . . . . . . . . 3 2 . | $$ | . . . . . . . . . . . . . . . . X 5 . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

- this sequence ends unhappily for me. (Of course, before black's play at R10, I could have simply responded to S8 with the double atari at S9 - but no longer.) So, given that the first priority of my invasion was to prevent a connection between the two black groups, I must do something to stop black's connection at R8. However, that's not all that black's threatening. The cut at Q8 now looks much more severe than it did before:

Click Here To Show Diagram Code: [go]$$Bc robinz vs DIV - Move 34; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . 3 1 O . . | $$ | . . . . . . . . . . . . . . . 2 4 . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

- now black has no worries about me breaking northwards along the edge so gets a free play to stop my escape (P6 looks pretty final, but in fact wherever he plays in that region he's going to be the one having fun attacking a weak group of mine, when I really wanted it to happen the other way round). So, I must come up with a move which fixes both of these issues at once, or be forced to admit that my invasion was a total failure.

Well, that all sounds pretty pessimistic - but of course I get a move of my own first

The one I've made is I think the best to deal with the issues. As far as preventing the connection is concerned, the obvious choice was S8 (S7 and S9 seem to have no advantages over S8, and leave a ton more weaknesses for black to exploit as well). But this didn't seem to cope too well with the Q8 cut, given that I would be forced to move at R7 later. So, why not move there right now? It's also starting to apply a bit more pressure on that bottom group - I feel black should probably try to move out into the centre with it in some way - but then I'll follow him with my group, and hopefully create some nice extra territory or (more likely) influence in the middle there.

I'm actually quite confident that I've found the best local move here, on looking through my reasoning again - but it remains to be seen whether I'm still in trouble and thus chose the wrong moment for my invasion. (Or there's always the possibility that I've misread and overlooked something obvious, and am about to get chased and/or killed in a big way

)

topazg · Post by **topazg** » Thu Oct 28, 2010 3:52 am

Some fun observer comments

Move 30:

Click Here To Show Diagram Code: [go]$$Wcm30 robinz vs DIV - Move 30; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . 1 . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Far be it for me to claim something like this is a mistake, especially as I'd just been saying how big the right hand side was before Black got to play there, but this is the sort of move that has a number of not so obvious implications. Let's hypothetically assume White did something different:

Click Here To Show Diagram Code: [go]$$Wcm30 robinz vs DIV - Move 30; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . 2 . . . | $$ | . . . . . . . . . . . . . 3 . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . 1 . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

This is a bit woolly for White at the moment, and Black won't be unhappy with 4th line territory, but there is scope for White to develop a larger lower framework. However, with the current move:

Click Here To Show Diagram Code: [go]$$Wcm30 robinz vs DIV - Move 30; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , 4 . . | $$ | . . . . . . . . . . . . . . . 1 2 . . | $$ | . . . . . . . . . . . 9 . 7 . 5 3 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . 0 . 8 . 6 . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

The second :w30:

is played, Black can in principle do this, and there is no framework. Again, slightly sloppy proposed variation, but this is why it can often be better to reduce than invade, you need to ask yourself if you have your own development potential that you are damaging as well. In reality, even if White succeeds in keeping Black disconnected, he's only taken 10 or so points away from Black. That's not much potential that he has to lose to Black's counter to make the move net a total of 0 points.

Of course, building a framework reduces the invasion aji, so it works both ways. On that note, what about being a bit more severe about things?

Click Here To Show Diagram Code: [go]$$Wcm30 robinz vs DIV - Move 30; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , 6 . . | $$ | . . . . . . . . . . . . . . 4 2 1 9 . | $$ | . . . . . . . . . . . . . . . 3 . . . | $$ | . . . . . . . . . . . . . . . . 5 . . | $$ | . . . . . . . . . . . . . . . 7 X . . | $$ | . . . . . . . . . . . . . . . . 8 . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I actually prefer something like this. Depending on the situation, White can do a lot of damage on this edge, and there's really not a lot Black can do to prevent it. As the gap is large on both the top, and the bottom of the new right side middle stone of :b29:

, White can jump in quite happily and do a lot of damage. Again, this depends on how much Black's going to get thickness compensation, but it looks ok to me

Move 33

Click Here To Show Diagram Code: [go]$$Bcm33 robinz vs DIV - Move 33; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , 1 . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

A really good example of solid and thick play. It looks slow, but as Robinz just said, it's really annoying to be up against, because all that lovely aji White was hoping to toy around with has disappeared. Black can't stop himself being disconnected, but now Black can really chase that group out:

Click Here To Show Diagram Code: [go]$$Bcm33 robinz vs DIV - Move 33; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , 1 . . | $$ | . . . . . . . . . . . . 7 . . O X . . | $$ | . . . . . . . . . . . 6 8 4 . 2 O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . 9 . 5 . 3 . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I'm not necessarily advocating this as better than anything else, but Black does have some awkward aji to handle now in the lower right, and he's just been given another weapon in his arsenal to fight White with. Personally I'd probably try and take tenuki to approach the lower left, but it's always nice knowing this sort of thing is available.

Move 34:

Click Here To Show Diagram Code: [go]$$Wcm34 robinz vs DIV - Move 34; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . a O . . | $$ | . . . . . . . . . . . . . . . . 1 . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O b . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I'm actually not so keen on this, I think it's trying to be too clever. Kind of like a boxer that's off balance but wants to get a quick jab off anyway. It's lost most of its effectiveness, you are going to have to take time to rebalance, and any opportunities you may have got against your opponent may disappear with the lost momentum. For example, the aji at "b" I would really want to aim at. Simply connecting solidly at "a" means White has no peeps or cuts to handle, Black is still firmly separated, and Black is the one that instead has to worry about "b" being activated at the opportune moment. It feels like White's trying a little bit too hard to handle what looks like some intimidating right hand side territory of Black's.

Some fun extras:

Click Here To Show Diagram Code: [go]$$Wcm30 robinz vs DIV - Move 30; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . b . . | $$ | . . X O . . . . . , . . . . . , X 1 . | $$ | . X . O . . . . O . . O . . . . a . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

EDIT: The following paragraph was misleading and read wrongly, so I've edited it a bit. Thanks to gaius for the heads up

It might be a bit late as Black's got thicker, but at move 30 would be a great time to hit this probe. If Black plays "a", White does just what he is doing in the game, and can take sente to then return to live in the corner. If Black plays "b" White instead can threaten to play "a" himself, which means he should be able to invade or live on the edge as Black's so thin on the right hand side. The thicker White makes Black on the right, the more Black can resist the probe fiercely, as he has some allies to call on if the fights break out.

DIV · Post by **DIV** » Thu Oct 28, 2010 9:33 pm

Click Here To Show Diagram Code: [go]$$Bcm35 robinz vs DIV - Move 35; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . 1 X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

robinz · Post by **robinz** » Fri Oct 29, 2010 3:34 am

Click Here To Show Diagram Code: [go]$$Wcm36 robinz vs DIV - Move 36; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . 1 . O . . | $$ | . . . . . . . . . . . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

For once, a move I had anticipated - although I am a bit relieved that he chose the solid stretch rather than a jump. I want to stay ahead as we move into the centre, so I choose the 1-point jump. It looks a little bit hairy with those black stones so close, but I think I come out OK in all variations. For example:

Click Here To Show Diagram Code: [go]$$Bc robinz vs DIV - Move 36; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . 2 O . . | $$ | . . . . . . . . . . . . . . O 1 O . . | $$ | . . . . . . . . . . . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

- the cut at P8 doesn't work due to a favorable ladder for me. Or, if black jumps, I can push through and probably cause some havoc in this fashion:

Click Here To Show Diagram Code: [go]$$Bc robinz vs DIV - Move 36; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . 4 O . O . . | $$ | . . . . . . . . . . . . . 1 2 X X . . | $$ | . . . . . . . . . . . . . . 3 . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

- well, perhaps "havoc" is too strong a word, but black has still has cutting points to watch (and at an opportune moment I can remove some eyespace from below that black group - although keeping my own group safe is the priority for now), which should allow me to stay ahead as the fight spills out into the centre, hopefully building influence in the process.

Finally, black might choose to just stretch again - but then the one-point jump or knight's move look like fine options. I will analyse these in more detail if black goes down this road.

topazg · Post by **topazg** » Fri Oct 29, 2010 3:59 am

Shape considerations:

Interestingly, slow though it looks, with bump contact plays the simple stretch is normal, and I think it was correct for Black here. Jumping has too much bad aji if Black wants to maintain the attack:

Click Here To Show Diagram Code: [go]$$Wcm34 robinz vs DIV - Move 34; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . 1 . . | $$ | . . . . . . . . . . . . . . 2 . X 3 . | $$ | . . . . . . . . . . . . . . . . 4 . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Allowing

here is just too good for White - it's an eye in sente, and that's so close to being settled when access to the middle isn't too questionable.

This seems the sensible continuation for Black to me:

Click Here To Show Diagram Code: [go]$$Wcm36 robinz vs DIV - Move 36; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . a . . O . . | $$ | . . . . . . . . . . . . 3 c 1 b O . . | $$ | . . . . . . . . . . . . . . . X X . . | $$ | . . . . . . . . . . . 4 . 2 . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Interestingly, the peep at "a" threatens cuts at both "b" and "c" at once. White can resist by playing "d" and netting the cutting stones, but Black can still get a lot of sealing in forcing moves here. White really has to deal with some of this bad aji to avoid actually losing out now from the original invasion / reduction move.

gaius · Post by **gaius** » Fri Oct 29, 2010 7:03 am

topazg, one minor comment for you (kind of off-topic as to the actual game, but still):

You say that if black plays 'b', white can play 'a'. Actually, that would be a terrible idea for white, because black can pincer at 'c', making white super-weak and heavy. It's much, much better for white to lightly play 'c' himself (or some such move), threatening to put the 2-4 stone into motion, rather than going at it directly.

Click Here To Show Diagram Code: [go]$$Wcm30 robinz vs DIV - Move 30; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . b . . | $$ | . . X O . . . . . , . . . . . , X 1 . | $$ | . X . O . . . . O . . O . . . . a . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . c . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Addendum 1 Nov. 2010, in response to topazg:

topazg · Post by **topazg** » Fri Oct 29, 2010 7:15 am

gaius wrote:topazg, one minor comment for you (kind of off-topic as to the actual game, but still):

I apologise, I hadn't meant to imply hane-ing straight out if Black played "b". You are quite right

, and I had meant to imply rather that the aji of White being able to do that gives him a lot more options on the right hand side generally - something which is gone if White makes Black thick on the right hand side first!

Thanks for the heads up, I've just looked back at it and it's worded terribly. I added it as an extra after doing the main post, and it's still looking a bit rushed. I've edited it a bit.

EDIT: Actually, if you have a couple of typical sequences, that would be a good thing to throw in - I tend to improvise those sort of positions and I haven't done a great deal of reading of examples of using that aji in this case...

FURTHER EDIT: Actually, on that point, even if Black takes "a" White shouldn't always play "b" straight away, as it's gote and gives Black a lot of thickness which, right now, is still very useful to Black. Probably better to turn first to reducing the potential of the right hand side, and either do so in sente if Black takes the time to kill the corner stone as well, or get to both reduce and live in the corner if Black allows White to get "b" in later.

FINAL EDIT:

For those that don't know, the living sequence in question is:

Click Here To Show Diagram Code: [go]$$Wcm30 robinz vs DIV - Move 30; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . 8 5 9 . | $$ | . . X O . X . . X . . X . . X 4 3 . 7 | $$ | . . X O . . . . . , . . . . . , X 1 . | $$ | . X . O . . . . O . . O . . . . 2 6 . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

DIV · Post by **DIV** » Fri Oct 29, 2010 4:22 pm

Click Here To Show Diagram Code: [go]$$Bcm37 robinz vs DIV - Move 37; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . 1 . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . O . O . . | $$ | . . . . . . . . . . . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

robinz · Post by **robinz** » Sat Oct 30, 2010 3:04 am

Click Here To Show Diagram Code: [go]$$Wcm38 robinz vs DIV - Move 38; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . X . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . O . O . . | $$ | . . . . . . . . . . . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . 1 . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Laman · Post by **Laman** » Sat Oct 30, 2010 4:01 am

i think black's last move was very small, white cannot do pretty much anything in that area - he has very little support there (M15 nor Q9 are super-strong) while black has already many stones around - white would only end up with a small, unhappy group like Q9

for me, jump b O5 seems as the most obvious move. i think (especially in fuseki) you don't have to care about getting points of actual territory so much, but rather follow the most basic principles, strong and weak, connected and disconnected. it is the natural flow of the game. (i was trying to write more here but was unable to express myself in an understandable, meaningful way, sorry)

kakari at the lower-left corner would be also bigger for black than his actual move, and i would choose C6 of the two directions, as left side is wider than the lower and white would be divided just in the middle of his potential moyo

i would recommend the lower-right area for white as well, P6 he mentioned or maybe more secure O6. in fact, such move is sente:

Click Here To Show Diagram Code: [go]$$Wcm1 Diagram 1, /b 2 tenuki/ $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . X . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . O . O . . | $$ | . . . . . . . . . . . . . 1 . X X 7 . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . , . . . . . X . 5 . | $$ | . . . . . . . . . . O . . O . . X 6 . | $$ | . . . . . . . . . . . . . . . O 3 4 . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

DIV · Post by **DIV** » Sat Oct 30, 2010 8:01 pm

Click Here To Show Diagram Code: [go]$$Bcm39 robinz vs DIV - Move 39; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . X . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . O . O . . | $$ | . . 1 . . . . . . . . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . O . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Alright, he played a big move. I want to get something over here.

Click Here To Show Diagram Code: [go]$$Bcm39 robinz vs DIV - Move 39; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . f . X . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . , . . . . . , . . . e . , X . . | $$ | . . a . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . O . O . . | $$ | . . 1 . d . . . . . . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . O . , . . . . . X . . . | $$ | . . b . . c . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

some possibilities I am seeing for my next stone, all really depends on what he plays. We'll see.

robinz · Post by **robinz** » Sun Oct 31, 2010 2:47 am

Click Here To Show Diagram Code: [go]$$Wcm40 robinz vs DIV - Move 40; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . X . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . 1 , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . O . O . . | $$ | . . X . . . . . . . . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . O . , . . . . . X . . . | $$ | . . . . . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Well, I wanted a move on that side some time soon anyway - if black chooses to approach there first, I get to do it by pincering and attacking his stone at the same time

I must confess, I never really know which pincer to play, when I do decide to play one - I guess at some point soon I'm going to have to start learning some pincer joseki and figuring out what the likely outcomes are, and what difference it makes what pincer I start with. But on general principles I'm pretty sure that a distant pincer is better than a close one here - because one of black's common responses will be to invade the corner; I will build a wall going E/W, and the standard joseki here I believe goes like:

Click Here To Show Diagram Code: [go]$$Bc robinz vs DIV - Move 40; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . X . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . x . . . . . . . . . . . . X . . . | $$ | . . a , . . . . . , . . . . . , X . . | $$ | . . b . . . . . . . . . . . . O X . . | $$ | . . c . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . O . O . . | $$ | . . X . . . . . . . . . . . . X X . . | $$ | . 6 8 . . . . . . . . . . . . . . . . | $$ | . 5 2 O 4 . . O . , . . . . . X . . . | $$ | . 7 1 3 . . . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

- here, a white stone at c looks far too close to the wall, and even one at b a little close. Actually, the 2-space pincer (b) was my first choice here, but it might allow black to cause some trouble at x - whereas now my pincer stone looks safely connected to the upper wall.

I expect black to now either invade the lower-left corner, or to jump out at E6. The former I'm well prepared for, as I have discussed. If he jumps I don't know exactly what I'll play, but the prospect of a running fight into the centre of the board, which I have far more influence than black does, is not unappealing. I'll reconsider more carefully if black plays it, but the one-point jump at H6 looks rather effective, blocking the direct route into the middle. (Oh, but then black might be able to make use of the aji at F4 that I left on my last move - perhaps playing at F4 myself will be better. I'm not sure - but I'm sure no disaster will happen either way, so let's not examine anything in detail until black forces me to.)

robinz · Post by **robinz** » Mon Nov 01, 2010 4:16 am

DIV · Post by **DIV** » Mon Nov 01, 2010 6:56 pm

Click Here To Show Diagram Code: [go]$$Bcm41 robinz vs DIV - Move 41; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . X . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . O , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . O . O . . | $$ | . . X . . . . . . . . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . O . , . . . . . X . . . | $$ | . . . . . 1 . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

robinz · Post by **robinz** » Tue Nov 02, 2010 5:40 am

Click Here To Show Diagram Code: [go]$$Wcm42 robinz vs DIV - Move 42; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . X . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . O , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . O . O . . | $$ | . . X . . . . . . . . . . . . X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 1 O . . . O . , . . . . . X . . . | $$ | . . . . . X . . . . O . . O . . X . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Well, don't I feel stupid. The double approach is a perfectly normal and reasonable response to my pincer, and with the weakness of my 3-space extension on the fourth line it looks even more attractive to black - yet somehow I overlooked it entirely :oops:

I considered various local responses here, and have eventually decided on the iron pillar on this side. The 3-3 invasion no longer works, and my groups to the right and above are fairly strong, while neither of black's stones are yet, not can they easily be made strong. Black has several options now in the local area:

Click Here To Show Diagram Code: [go]$$Bc robinz vs DIV - Move 42; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . X . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . O , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . O . O . . | $$ | . . X . . . . . . . . . . . . X X . . | $$ | . . . . a b . . . . . . . . . . . . . | $$ | . . O O c d . O . , . . . . . X . . . | $$ | . . . . . X . . . . O . . O . . X . . | $$ | . . . e . . . f . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

- a,b,c and d all threaten to split my stones apart and/or connect black's, but I think I have good counters to all, based on the fact that black is going to be left with at least one weak stone. (If black plays a, the push-and-cut starting at c looks fine, and in response to c or d I can, amongst other things, try capping black's C6 stone. For b, see below.) The slides to e and f seek to make life with black's F3 stone (e is surely better in this regard), but allow me to connect at the point d, when I can surely at the very least seal black's group in (hopefully in sente - life won't be easy) and get a healthy outward-facing wall, just as I desired before

Finally, the one-point jump at b can I think just be directly cut with good results, thanks to my nearly stones. I won't give every possible sequence, but one example (others being similar):

Click Here To Show Diagram Code: [go]$$Bc robinz vs DIV - Move 42; prisoners: Black 0 White 1 $$ --------------------------------------- $$ | . . . O . . . . . . . . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . X O . X . . X . . X . . X . . . . | $$ | . . X O . . . . . , . . . . . , X . . | $$ | . X . O . . . . O . . O . . . . . . . | $$ | . X O . . . . . . . . . . . . X . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . O , . . . . . , . . . . . , X . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . O . O . . | $$ | . . X . . . . . . . . . . . . X X . . | $$ | . . . . 5 1 . . . . . . . . . . . . . | $$ | . . O O 3 2 4 O . , . . . . . X . . . | $$ | . . . 7 6 X . . . . O . . O . . X . . | $$ | . . . 0 8 9 . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

- 7 is captured, the stones at the bottom look to be dead, and those on the outside are floating and won't make life easily, so I should be able to get some profit out of the situation.

Life In 19x19

77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]

Re: 77: robinz[12k] v. DIV[12k]