#181 magicwand vs topazg (again!)

Magicwand · Post by **Magicwand** » Sat Nov 10, 2012 5:54 am

Click Here To Show Diagram Code: [go]$$Bcm51 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . 0 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . 8 . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . 1 O 4 . O . . X O . . | $$ | . 7 X . . O . 6 . 3 . . . . . X . . . | $$ | . . . . 5 X 2 . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

topazg · Post by **topazg** » Sat Nov 10, 2012 11:35 am

Click Here To Show Diagram Code: [go]$$Bcm61 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 1 . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . X O O . O . . X O . . | $$ | . X X . . O . O . X . . . . . X . . . | $$ | . . . . X X O . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

tomukaze · Post by **tomukaze** » Sat Nov 10, 2012 11:57 am

@Topazg

topazg · Post by **topazg** » Sat Nov 10, 2012 12:16 pm

@tomukaze

Magicwand · Post by **Magicwand** » Sat Nov 10, 2012 2:16 pm

Click Here To Show Diagram Code: [go]$$Bcm61 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 1 . . . . . . . . . . O O . . . | $$ | . . 2 . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . X O O . O . . X O . . | $$ | . X X . . O . O . X . . . . . X . . . | $$ | . . . . X X O . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

topazg · Post by **topazg** » Sat Nov 10, 2012 2:33 pm

Click Here To Show Diagram Code: [go]$$Bcm61 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 1 . . . . . . . . . . O O . . . | $$ | . . 2 . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . X O O . O . . X O . . | $$ | . X X . . O . O . X . . . . . X . . . | $$ | . . . . X X O . . . . . 3 . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Magicwand · Post by **Magicwand** » Sat Nov 10, 2012 3:06 pm

Click Here To Show Diagram Code: [go]$$Bcm61 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 1 . . . . . . . . . . O O . . . | $$ | . . 2 . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . X O O . O . . X O . . | $$ | . X X . . O . O . X . . . . . X 4 . . | $$ | . . . . X X O . . . . . 3 . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

topazg · Post by **topazg** » Sat Nov 10, 2012 3:17 pm

To observers, some thoughts over the last few moves (53 onwards coming later):

Move 39:

Click Here To Show Diagram Code: [go]$$Bcm31 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . b . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . b . b . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . X . X . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . 8 . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . X 9 . . | $$ | . . . O . O . . . O . . O . . X O . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . a . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

At this point, I was concerned that White was eating my territory too fast. Unfortunately, playing this way allowed him to pretty much secure the life of :b38:

- this in turn means my sequence in the top right was probably a mistake. My goal of creating thickness up there to exert influence over the whole right side had two fatal flaws: a) it's not very thick, and b) I underestimated White's ability to cripple the potential on the right.

It's not a complete game loser, but it hurts. So, patience being a virtue and all that, I figure securing some real points in the corner both allows more certainty with the reduction at "a", and helps me create some possibilities in the "b" area as I chase Black out. I discarded sequences like this:

Click Here To Show Diagram Code: [go]$$Bcm37 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . X . X . . . . . . . . . . . X 9 . | $$ | . . . . . . . . . . . . . . . . . 8 . | $$ | . . . . . . . . . . . . . . . 3 2 . . | $$ | . . X X . . . . . . . . . . . 7 5 6 . | $$ | . . O . . . . . . . . . . . . X 4 . . | $$ | . . . O . O . . . O . . O . . X O . . | $$ | . . . . . . . . . . . . . . . X 0 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Now White lives comfortably in the corner. Sure, it's not very big, but Black has no real points anywhwere, and White's lower position is too hard for me to feel I can gain much value from my new wall.

Move 41:

Click Here To Show Diagram Code: [go]$$Wcm40 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . X . X . . . . . . . . . 2 . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . 1 . O . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . . O . . O . . X O . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

The immediate and obvious response, but I so really wanted to be more aggressive. The problem was I couldn't see how. I alluded to my thickness in the top right not really being thick, and the reason being is:

Click Here To Show Diagram Code: [go]$$Wcm40 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X 3 5 X . . . | $$ | . . . . . . O . . . X . 7 O 2 1 O O . | $$ | . . . O . . . . O . . . . 4 6 X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . X . X . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . . O . . O . . X O . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

After

here, I have no way of preventing White from connecting that stone back, which means I have to concede a lot of points to keep my wall - something like the exchange above could be the best I can get out of the position, which frankly feels like a disaster, having just expressed my concerns about losing too much territory already.

So, even though I want to try to split White off, this aji allows White to do things like:

Click Here To Show Diagram Code: [go]$$Wcm40 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . a . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . 7 . 6 . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . X . X . . . . . . . . . 5 . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . 3 1 . O . . | $$ | . . X X . . . . . . . . 4 2 . . . . . | $$ | . . O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . . O . . O . . X O . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Now with moves like "a" on the cards for White, I'm forced to continue being defensive, and that exchange I tried to give in the corner turns into something truly embarrassing. What's more, :b41:

and

just look ... so sad and pointless.

Move 43:

Click Here To Show Diagram Code: [go]$$Wcm42 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . 2 . | $$ | . . X . X . . . . . . . . . X . X 1 . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O a O . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . . O . . O . . X O . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

To my shame, I hadn't considered :w42:

here. I really thought I was going to have a chance of getting to cut at "a", but this exchange makes it very hard. I figured it was a probe, but after I defend, I'm in a difficult position regarding cutting. I was half tempted to play something crude and terrible like the following:

Click Here To Show Diagram Code: [go]$$Wcm42 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , b . . | $$ | . . X . X . . . . . . . . . X a X 1 . | $$ | . . . . . . . . . . . . . . . 7 2 3 . | $$ | . . . . . . . . . . . . . . O 4 O 6 . | $$ | . . X X . . . . . . . . . . . 5 . 8 . | $$ | . . O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . . O . . O . . X O . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

But ... it's horrible I think. Both "a" and "b" now seem like great moves for White. I was just bitter about losing the cut and coming up with nonsense, so I decided to bite the bullet and suck up a bit more of magicwand pushing me around in the hope that I could gain enough strength to fix the top right in genuine profit later.

Move 45:

Click Here To Show Diagram Code: [go]$$Wcm44 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , 2 X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . 1 a . | $$ | . . . . . . . . . . . . . . O . O . . | $$ | . . X X . . . . . . . . . b . . . . . | $$ | . . O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . . O . . O . . X O . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I actually expected :w44:

to be at "a", in which case I was sorely tempted to finally play my cut at "b" and start a big fight, but MW was playing to settle quickly and let me have the stone potentially as endgame (in hindsight, this makes sense. I can't swallow it without giving him equally good endgame into the lower right corner so it's not particularly great endgame for me to have left there), so I played thickly in response.

I'd spent some time reading the fight actually, and had decided I may have to back down anyway, as that upsetting aji in the top right comes into play again:

Click Here To Show Diagram Code: [go]$$Wcm44 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . a . | $$ | . . O . . . . . . . . . . . . 7 5 6 . | $$ | . . . , . . . . . , . . . . . 4 3 X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . . 1 . | $$ | . . . . . . . . . . . . . . O . O . . | $$ | . . X X . . . . . . . . . 2 . . . . . | $$ | . . O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . . O . . O . . X O . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

is important here, as it means "a" now kills the two stones, so Black has to protect those before forming any kind of useful attack

Click Here To Show Diagram Code: [go]$$Bcm51 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . b . X X X . | $$ | . . . . . . . . . . . . . . . . 5 . . | $$ | . . . . . . . . . . . . . 6 . 4 1 . . | $$ | . . O . . . . . . . . . . . . O O X . | $$ | . . . , . . . . . , . . . . 2 X O X . | $$ | . . X . X . . . . . . . . . X 3 X O . | $$ | . . . . . . . . . . . . . . . . . O . | $$ | . . . . . . . . . . . . . a O . O . . | $$ | . . X X . . . . . . . . . X . . . . . | $$ | . . O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . . O . . O . . X O . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I was envisaging something like this, but the problem is at :b57:

in my sequence I really badly want both "a" and "b" as I have two groups that are potentially in a lot of danger themselves, meaning I'll probably have to cut off the attack. If I really do kill that side group then great, but the bigger concern is he could exchange "a" before making the cut, and it becomes very hard for me to see how I'm supposed to keep those 4 stones alive. As a result, I figured this whole fight was an overplay, and decided I couldn't start this sort of thing off anyway.

Move 47:

Click Here To Show Diagram Code: [go]$$Wcm46 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . 1 . O . O . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . X X . . | $$ | . . . O . O . a . O . . O . . X O . . | $$ | . . 2 . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Finally, I get sente to do some reducing of my own!

Actually, with some of magicwand's moves later, particularly one that caught me completely off guard, I'm beginning to suspect I may have been better off looking at a different move. This :w46:

actually starts some serious moyo building, and I could have been better off aiming around "a". The thing is, his response caught me off guard. I'd assessed the following:

Click Here To Show Diagram Code: [go]$$Wcm48 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . 8 . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . 2 O 6 . . . . . . . . . . . X X . . | $$ | . 3 4 O . O . . . O . . O . . X O . . | $$ | . 5 B 1 . . . . . . . . . . . X . . . | $$ | . . 7 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

and ..

Click Here To Show Diagram Code: [go]$$Wcm48 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . 6 . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . 2 O . . . . . . . . . . . . X X . . | $$ | . 4 3 O . O . . . O . . O . . X O . . | $$ | . 5 B 1 . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Both as ways of helping my group settle and get first move in the top left, or:

Click Here To Show Diagram Code: [go]$$Wcm48 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 2 . . . . . . . . . . O O . . . | $$ | . . 3 . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . X X . . | $$ | . . 1 O . O . . . O . . O . . X O . . | $$ | . . B . . . . 4 . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

As a means of using the corner aji if he went for the outright kill. The problem is, when White descended, he started to seriously threaten my left side group again, so variations such as the last one start to scare me. It feels too easy now for White to play something like:

Click Here To Show Diagram Code: [go]$$Wcm48 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . 5 . . . . . . . . . . . . . | $$ | . 1 O . . . . . . . . . . . . X X . . | $$ | . . . O . O . 4 . O . . O . . X O . . | $$ | . . B . . . 3 2 . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

And create a splitting attack against both groups. As a result, I no longer liked the lower side invasion, and decided to try to do as much as possible on the bottom edge first.

Move 49+51:

Click Here To Show Diagram Code: [go]$$Wcm48 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . 1 O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . 4 O . . O . . X O . . | $$ | . . X . . 3 . . . . . . . . . X . . . | $$ | . . . . a 2 . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Obviously, it should be relatively easy here to live in the corner or the lower edge, but it wasn't clear to me how best to do it. I figured White would bump, and I could simply pull back at "a" and live, but White's outside thickness felt just too huge to do this. The points potential that White was getting felt like it could be game ending, particularly as I still haven't gotten a large amount of territory, and the reduction by living in this corner didn't feel large enough to offset White's compensation. So, the immediate thing I started trying to do was to extend in the other direction. Sadly, in each case, White seemed to be able to keep the corner (fine, the point of extending the other way was to have the bottom instead) and seal Black in (not fine at all, as the whole point of going for the lower side would be to break White's central influence. Letting White have the corner and the thickness would be game over). The sequences I had were as follows:

Click Here To Show Diagram Code: [go]$$Wcm50 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . W O . . . . 5 7 . . . . . . X X . . | $$ | . . . O . O . 4 6 O . . O . . X O . . | $$ | . . X . . 1 . . . 8 9 . . . . X . . . | $$ | . . . . 3 B 2 . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Now White becomes so thick I fail to see how I can survive without making White's position unassailable. I tried an alternative:

Click Here To Show Diagram Code: [go]$$Wcm50 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . W O . . . . 6 . . . . . . . X X . . | $$ | . . . O . O . . . O . . O . . X O . . | $$ | . . X . . 1 . . 4 5 . . . . . X . . . | $$ | . . . . 3 B 2 . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I like this, as White can't now cut Black apart. Black can't save all his stones, but :b51:

and

seem connected. However, what if White resists the other way?

Click Here To Show Diagram Code: [go]$$Wcm50 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . W O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . 5 O . . O . . X O . . | $$ | . . X . . 1 . . 4 6 7 9 . . . X . . . | $$ | . . . . 3 B 2 . . . 8 . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Yay for 2nd line crawly life! Again, losing the corner and giving White this kind of outside seemed doomed to failure, so I picked the point that seemed to be crucial shape-wise to not being sealed in, and played the contact play ( :b51:

in game) in the hope it would give me some leverage. Now if I got a response I could guarantee central access:

Click Here To Show Diagram Code: [go]$$Wcm48 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O . . . | $$ | . . . . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . 1 O . . . . . . . . . . . . X X . . | $$ | . . . O . O . 8 4 O . . O . . X O . . | $$ | . . X . . 3 . . . 5 . . . . . X . . . | $$ | . . . . 7 2 6 . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

And if White played to keep them separated, I hoped I could use this as kikashi to create some more aji I could use later whilst still living in the corner.

The Intrepid · Post by **The Intrepid** » Sat Nov 10, 2012 10:43 pm

topazg · Post by **topazg** » Mon Nov 12, 2012 5:11 am

Nearly ready magicwand

Well, here goes. I've spent so long reading out variations here, and frankly, I'm worried I've still gotten it badly wrong. This is way more complicated than it looked. The only real options to consider were the two descents, and both have their issues.

So, why this one? To be honest, I nearly played the other - either way, White has a dead group in the corner that needs actively killing, and in both cases Black leaves aji that gives White some useful sente continuations. In this case, White gets plenty of sente endgame approaching from the other side - I still think giving me this :b65:

is a bit of a mistake, but that probably means I've missed something - magicwand is a bit of an aji-king.

The variation with the other direction seemed fine:

Click Here To Show Diagram Code: [go]$$Bcm65 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X 1 . | $$ | . . . O . O . . X O O . O . . X O . . | $$ | . X X . . O . O . X . . . . 0 X O . 5 | $$ | . . . . X X O . . . . . X . 3 2 . 4 6 | $$ | . . . . . . . . . . . . . . . 8 7 9 . | $$ ---------------------------------------[/go]

In this line, it appears I can kill the corner group before either of the adjacent Black groups die, which makes it perfectly good enough and prevents White's useful endgame on the right, but I'm more concerned about this one:

Click Here To Show Diagram Code: [go]$$Bcm65 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X 1 . | $$ | . . . O . O . . X O O . O . . X O . . | $$ | . X X . . O . O . X . . . . . X O . . | $$ | . . . . X X O . . . . . X . 2 . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Now, if I play to simply cut off, White could make the whole bottom side his:

Click Here To Show Diagram Code: [go]$$Bcm65 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X 1 . | $$ | . . . O . O . . X O O . O . 6 X O . . | $$ | . X X . . O . O . X . . 5 . . X O . . | $$ | . . . . X X O . . . . . X 4 2 3 . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Now things are not so fun, and I'll still have to play other moves in the corner to make sure we don't end up with a mysterious and difficult liberty race. Naturally, the next option is to try to resist:

Click Here To Show Diagram Code: [go]$$Bcm65 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X 1 . | $$ | . . . O . O . . X O O . O 9 0 X O 7 . | $$ | . X X . . O . O . X . . . 3 8 X O 5 . | $$ | . . . . X X O . . . . . X . 2 4 6 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Click Here To Show Diagram Code: [go]$$Bcm65 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . 6 . . . . . | $$ | . O O . . . . . . . . . 3 2 1 X X X . | $$ | . . . O . O . . X O O . O X O X O X . | $$ | . X X . . O . O . X . . 4 X O X O X . | $$ | . . . . X X O . . . . 7 X 5 O O O 8 9 | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Again, it looks like I win nicely enough, but the aji is pretty severe, and it allows White to use this fact to cut those two stones in the lower middle off, probably in sente. As a result, I feel like I'll have to lose the benefits that :b63:

was supposed to get me just to maintain his dead group in the corner. So, I've taken the risk that there isn't some clever forced life / ko-life in the corner by playing on the other side in the first instance. White can easily make an L+1 group, but it's my sente, so he dies even if he can play the hane in sente. However, if he takes both hanes in sente, he can make a ko for the corner, so I have to play and hope:

Click Here To Show Diagram Code: [go]$$Bcm65 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O 7 . | $$ | . . X X . O . . . . . . . . . . 5 3 6 | $$ | . O O . . . . . . . . . . . . X X 2 . | $$ | . . . O . O . . X O O . O . . X O 4 . | $$ | . X X . . O . O . X . . . . . X O . . | $$ | . . . . X X O . . . . . X . . 1 8 9 0 | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Click Here To Show Diagram Code: [go]$$Bcm75 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O X . | $$ | . . X X . O . . . . . . . . . . X X O | $$ | . O O . . . . . . . . . . . . X X O 3 | $$ | . . . O . O . . X O O . O . . X O O 4 | $$ | . X X . . O . O . X . . . . . X O 5 . | $$ | . . . . X X O . . . . . X 7 . X O X O | $$ | . . . . . . . . . . . . . . . 6 2 1 . | $$ ---------------------------------------[/go]

My concern is whether or not he can throw in the second hane before playing in the 2-1 point:

Click Here To Show Diagram Code: [go]$$Bcm75 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O X . | $$ | . . X X . O . . . . . . . . . . X X O | $$ | . O O . . . . . . . . . . . . X X O . | $$ | . . . O . O . . X O O . O 9 . X O O . | $$ | . X X . . O . O . X . . . 7 8 X O . 5 | $$ | . . . . X X O . . . . . X 3 6 X O X . | $$ | . . . . . . . . . . . . . . 2 W 4 1 . | $$ ---------------------------------------[/go]

And so on. If he can do this, and I can't find a good refutation, I have to return to my original idea of descending on the other side.

For beginners:

ez4u · Post by **ez4u** » Mon Nov 12, 2012 6:49 am

topazg wrote:Nearly ready magicwand

Well, here goes. I've spent so long reading out variations here, and frankly, I'm worried I've still gotten it badly wrong. This is way more complicated than it looked. The only real options to consider were the two descents, and both have their issues.

So, why this one? To be honest, I nearly played the other - either way, White has a dead group in the corner that needs actively killing, and in both cases Black leaves aji that gives White some useful sente continuations. In this case, White gets plenty of sente endgame approaching from the other side - I still think giving me this is a bit of a mistake, but that probably means I've missed something - magicwand is a bit of an aji-king.

The variation with the other direction seemed fine:

$$Bcm65 Prisoners: none
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . O O . . . |
$$ | . . O . . X . . . . X . O . X . O . . |
$$ | . . . O . . . X . X . . X . . X . . . |
$$ | . . . . . . O . . . X . . O . . O O . |
$$ | . . . O . . . . O . . . . . . X X X . |
$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , X X . |
$$ | . . X . X . . . . . . . . . X . X O . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . O . O . O . . |
$$ | . . X X . O . . . . . . . . . . . . . |
$$ | . O O . . . . . . . . . . . . X X 1 . |
$$ | . . . O . O . . X O O . O . . X O . . |
$$ | . X X . . O . O . X . . . . 0 X O . 5 |
$$ | . . . . X X O . . . . . X . 3 2 . 4 6 |
$$ | . . . . . . . . . . . . . . . 8 7 9 . |
$$ ---------------------------------------

Click Here To Show Diagram Code
[go]$$Bcm65 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X 1 . | $$ | . . . O . O . . X O O . O . . X O . . | $$ | . X X . . O . O . X . . . . 0 X O . 5 | $$ | . . . . X X O . . . . . X . 3 2 . 4 6 | $$ | . . . . . . . . . . . . . . . 8 7 9 . | $$ ---------------------------------------[/go]

In this line, it appears I can kill the corner group before either of the adjacent Black groups die, which makes it perfectly good enough and prevents White's useful endgame on the right, but I'm more concerned about this one:

$$Bcm65 Prisoners: none
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . O O . . . |
$$ | . . O . . X . . . . X . O . X . O . . |
$$ | . . . O . . . X . X . . X . . X . . . |
$$ | . . . . . . O . . . X . . O . . O O . |
$$ | . . . O . . . . O . . . . . . X X X . |
$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , X X . |
$$ | . . X . X . . . . . . . . . X . X O . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . O . O . O . . |
$$ | . . X X . O . . . . . . . . . . . . . |
$$ | . O O . . . . . . . . . . . . X X 1 . |
$$ | . . . O . O . . X O O . O . . X O . . |
$$ | . X X . . O . O . X . . . . . X O . . |
$$ | . . . . X X O . . . . . X . 2 . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------

Click Here To Show Diagram Code
[go]$$Bcm65 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X 1 . | $$ | . . . O . O . . X O O . O . . X O . . | $$ | . X X . . O . O . X . . . . . X O . . | $$ | . . . . X X O . . . . . X . 2 . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Now, if I play to simply cut off, White could make the whole bottom side his:

$$Bcm65 Prisoners: none
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . O O . . . |
$$ | . . O . . X . . . . X . O . X . O . . |
$$ | . . . O . . . X . X . . X . . X . . . |
$$ | . . . . . . O . . . X . . O . . O O . |
$$ | . . . O . . . . O . . . . . . X X X . |
$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , X X . |
$$ | . . X . X . . . . . . . . . X . X O . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . O . O . O . . |
$$ | . . X X . O . . . . . . . . . . . . . |
$$ | . O O . . . . . . . . . . . . X X 1 . |
$$ | . . . O . O . . X O O . O . 6 X O . . |
$$ | . X X . . O . O . X . . 5 . . X O . . |
$$ | . . . . X X O . . . . . X 4 2 3 . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------

Click Here To Show Diagram Code
[go]$$Bcm65 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X 1 . | $$ | . . . O . O . . X O O . O . 6 X O . . | $$ | . X X . . O . O . X . . 5 . . X O . . | $$ | . . . . X X O . . . . . X 4 2 3 . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Now things are not so fun, and I'll still have to play other moves in the corner to make sure we don't end up with a mysterious and difficult liberty race. Naturally, the next option is to try to resist:

$$Bcm65 Prisoners: none
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . O O . . . |
$$ | . . O . . X . . . . X . O . X . O . . |
$$ | . . . O . . . X . X . . X . . X . . . |
$$ | . . . . . . O . . . X . . O . . O O . |
$$ | . . . O . . . . O . . . . . . X X X . |
$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , X X . |
$$ | . . X . X . . . . . . . . . X . X O . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . O . O . O . . |
$$ | . . X X . O . . . . . . . . . . . . . |
$$ | . O O . . . . . . . . . . . . X X 1 . |
$$ | . . . O . O . . X O O . O 9 0 X O 7 . |
$$ | . X X . . O . O . X . . . 3 8 X O 5 . |
$$ | . . . . X X O . . . . . X . 2 4 6 . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------

Click Here To Show Diagram Code
[go]$$Bcm65 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X 1 . | $$ | . . . O . O . . X O O . O 9 0 X O 7 . | $$ | . X X . . O . O . X . . . 3 8 X O 5 . | $$ | . . . . X X O . . . . . X . 2 4 6 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

$$Bcm65 Prisoners: none
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . O O . . . |
$$ | . . O . . X . . . . X . O . X . O . . |
$$ | . . . O . . . X . X . . X . . X . . . |
$$ | . . . . . . O . . . X . . O . . O O . |
$$ | . . . O . . . . O . . . . . . X X X . |
$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , X X . |
$$ | . . X . X . . . . . . . . . X . X O . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . O . O . O . . |
$$ | . . X X . O . . . . . . . 6 . . . . . |
$$ | . O O . . . . . . . . . 3 2 1 X X X . |
$$ | . . . O . O . . X O O . O X O X O X . |
$$ | . X X . . O . O . X . . 4 X O X O X . |
$$ | . . . . X X O . . . . 7 X 5 O O O 8 9 |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------

Click Here To Show Diagram Code
[go]$$Bcm65 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . 6 . . . . . | $$ | . O O . . . . . . . . . 3 2 1 X X X . | $$ | . . . O . O . . X O O . O X O X O X . | $$ | . X X . . O . O . X . . 4 X O X O X . | $$ | . . . . X X O . . . . 7 X 5 O O O 8 9 | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Again, it looks like I win nicely enough, but the aji is pretty severe, and it allows White to use this fact to cut those two stones in the lower middle off, probably in sente. As a result, I feel like I'll have to lose the benefits that was supposed to get me just to maintain his dead group in the corner. So, I've taken the risk that there isn't some clever forced life / ko-life in the corner by playing on the other side in the first instance. White can easily make an L+1 group, but it's my sente, so he dies even if he can play the hane in sente. However, if he takes both hanes in sente, he can make a ko for the corner, so I have to play and hope:

$$Bcm65 Prisoners: none
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . O O . . . |
$$ | . . O . . X . . . . X . O . X . O . . |
$$ | . . . O . . . X . X . . X . . X . . . |
$$ | . . . . . . O . . . X . . O . . O O . |
$$ | . . . O . . . . O . . . . . . X X X . |
$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , X X . |
$$ | . . X . X . . . . . . . . . X . X O . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . O . O . O 7 . |
$$ | . . X X . O . . . . . . . . . . 5 3 6 |
$$ | . O O . . . . . . . . . . . . X X 2 . |
$$ | . . . O . O . . X O O . O . . X O 4 . |
$$ | . X X . . O . O . X . . . . . X O . . |
$$ | . . . . X X O . . . . . X . . 1 8 9 0 |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------

Click Here To Show Diagram Code
[go]$$Bcm65 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O 7 . | $$ | . . X X . O . . . . . . . . . . 5 3 6 | $$ | . O O . . . . . . . . . . . . X X 2 . | $$ | . . . O . O . . X O O . O . . X O 4 . | $$ | . X X . . O . O . X . . . . . X O . . | $$ | . . . . X X O . . . . . X . . 1 8 9 0 | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

$$Bcm75 Prisoners: none
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . O O . . . |
$$ | . . O . . X . . . . X . O . X . O . . |
$$ | . . . O . . . X . X . . X . . X . . . |
$$ | . . . . . . O . . . X . . O . . O O . |
$$ | . . . O . . . . O . . . . . . X X X . |
$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , X X . |
$$ | . . X . X . . . . . . . . . X . X O . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . O . O . O X . |
$$ | . . X X . O . . . . . . . . . . X X O |
$$ | . O O . . . . . . . . . . . . X X O 3 |
$$ | . . . O . O . . X O O . O . . X O O 4 |
$$ | . X X . . O . O . X . . . . . X O 5 . |
$$ | . . . . X X O . . . . . X 7 . X O X O |
$$ | . . . . . . . . . . . . . . . 6 2 1 . |
$$ ---------------------------------------

Click Here To Show Diagram Code
[go]$$Bcm75 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O X . | $$ | . . X X . O . . . . . . . . . . X X O | $$ | . O O . . . . . . . . . . . . X X O 3 | $$ | . . . O . O . . X O O . O . . X O O 4 | $$ | . X X . . O . O . X . . . . . X O 5 . | $$ | . . . . X X O . . . . . X 7 . X O X O | $$ | . . . . . . . . . . . . . . . 6 2 1 . | $$ ---------------------------------------[/go]

My concern is whether or not he can throw in the second hane before playing in the 2-1 point:

$$Bcm75 Prisoners: none
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . X . . . . . . . . . . O O . . . |
$$ | . . O . . X . . . . X . O . X . O . . |
$$ | . . . O . . . X . X . . X . . X . . . |
$$ | . . . . . . O . . . X . . O . . O O . |
$$ | . . . O . . . . O . . . . . . X X X . |
$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . O . X . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , X X . |
$$ | . . X . X . . . . . . . . . X . X O . |
$$ | . . . . . . . . . . . . . . . . O . . |
$$ | . . . . . . . . . . . . O . O . O X . |
$$ | . . X X . O . . . . . . . . . . X X O |
$$ | . O O . . . . . . . . . . . . X X O . |
$$ | . . . O . O . . X O O . O 9 . X O O . |
$$ | . X X . . O . O . X . . . 7 8 X O . 5 |
$$ | . . . . X X O . . . . . X 3 6 X O X . |
$$ | . . . . . . . . . . . . . . 2 W 4 1 . |
$$ ---------------------------------------

Click Here To Show Diagram Code
[go]$$Bcm75 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O X . | $$ | . . X X . O . . . . . . . . . . X X O | $$ | . O O . . . . . . . . . . . . X X O . | $$ | . . . O . O . . X O O . O 9 . X O O . | $$ | . X X . . O . O . X . . . 7 8 X O . 5 | $$ | . . . . X X O . . . . . X 3 6 X O X . | $$ | . . . . . . . . . . . . . . 2 W 4 1 . | $$ ---------------------------------------[/go]

And so on. If he can do this, and I can't find a good refutation, I have to return to my original idea of descending on the other side.

...

Obs:

Just a comment on a couple of Topazg's variations.

Here White is actually helpless due to lack of liberties. T gives up to :w6:

in his variation but :b7:

would end all resistance. This is a standard tesuji that we should always be on the lookout for.

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

Now in fact, White could continue as below and cut off the two Black stones (Black plays at "a" after :w10:

), but Black will end up with counter-play against the marked White stones or else get sente to play elsewhere so this is a good result.

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

And here T shows Black answering :w2:

with a play at "a" after which the push at "b" causes some concern. However, there is no reason to play so close. Black can play :b3:

and there are no worries. In fact Black could answer :w2:

with "b" and there is no cut. Note that with the marked stone waiting, Black can keep giving way along the bottom (against "c" for example) since White would just be helping Black connect up his stones.

Click Here To Show Diagram Code: [go]$$Bc Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . O O . . . | $$ | . . O . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O X . | $$ | . . X X . O . . . . . . . . . . X X O | $$ | . O O . . . . . . . . . . . . X X O . | $$ | . . . O . O . . X O O . O . . X O O . | $$ | . X X . . O . O . B . . . 3 . X O . . | $$ | . . . . X X O . . . . . X a b X O X . | $$ | . . . . . . . . . . . . c . 2 W . 1 . | $$ ---------------------------------------[/go]

topazg · Post by **topazg** » Mon Nov 12, 2012 8:21 am

Click Here To Show Diagram Code: [go]$$Bcm61 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 1 . . . . . . . . . . O O . . . | $$ | . . 2 . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . X O O . O . . X O . . | $$ | . X X . . O . O . X . . . . . X 4 . . | $$ | . . . . X X O . . . . . 3 . . 5 . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Magicwand · Post by **Magicwand** » Mon Nov 12, 2012 8:58 am

Click Here To Show Diagram Code: [go]$$Bcm61 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 1 . . . . . . . . . . O O . . . | $$ | . . 2 . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X . . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . X O O . O . . X O . . | $$ | . X X . . O . O . X 6 . . . . X 4 . . | $$ | . . . . X X O . . . . . 3 . . 5 . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

topazg · Post by **topazg** » Mon Nov 12, 2012 10:42 am

Click Here To Show Diagram Code: [go]$$Bcm61 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 1 . . . . . . . . . . O O . . . | $$ | . . 2 . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X 7 . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . X O O . O . . X O . . | $$ | . X X . . O . O . X 6 . . . . X 4 . . | $$ | . . . . X X O . . . . . 3 . . 5 . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Magicwand · Post by **Magicwand** » Mon Nov 12, 2012 12:26 pm

Click Here To Show Diagram Code: [go]$$Bcm61 Prisoners: none $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 1 . . . . . . . . . . O O . . . | $$ | . . 2 . . X . . . . X . O . X . O . . | $$ | . . . O . . . X . X . . X 7 . X . . . | $$ | . . . . . . O . . . X . . O . . O O . | $$ | . . . O . . . . O . . . . . . X X X . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . X . . . . . . . . . . . . . . | $$ | . . . 8 . . . . . , . . . . . , X X . | $$ | . . X . X . . . . . . . . . X . X O . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . O . O . O . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . O O . . . . . . . . . . . . X X . . | $$ | . . . O . O . . X O O . O . . X O . . | $$ | . X X . . O . O . X 6 . . . . X 4 . . | $$ | . . . . X X O . . . . . 3 . . 5 . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Life In 19x19

#181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)

Re: #181 magicwand vs topazg (again!)