84. Laman (1d) vs. Dusk Eagle (1d)

Kayres · **#101**

Joaz Banbeck · **#102**

It is 5 vs 5 liberties. So the immediate temptation is to try to win the race. But both liberty-filling processes are fraught with tactical complications. White can make external moves like the circled stone which threaten to extract his group and later become the van of an invasion. ( Black can do the same BTW )
I think that this latest cut is a game winner for black, and he has no need of taking the risk of a such a complex semeai. Even if he wins, white can get a wall and leave the semeai with sente:

Click Here To Show Diagram Code: [go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . 1 . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . . . . | $$ | . . . , . . . . . X X O @ @ . , . . . | $$ | . . X . . . . W . # O X X X . O . . . | $$ | . . . . . . . . . # O O O X . . . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . # O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I think that it is a much surer win for black to protect his group like this:

Click Here To Show Diagram Code: [go]$$Bc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O W B . . . . . . | $$ | . . . , . . . . . X X O . . . , . . . | $$ | . . X . . . . . . . O X X X . O . . . | $$ | . . . . . . . . . . O O O X . . . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . . O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

...and put the burden of proof on white.

Jedo · **#103**

Joaz Banbeck · **#104**

Jedo wrote:

Dusk Eagle · **#105**

Merry Christmas everyone!

Click Here To Show Diagram Code: [go]$$Bcm1 Move #69 B+1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . . . . | $$ | . . . , . . . . . X X O . . . B . . . | $$ | . . X . . . . . . . O X X X . O . . . | $$ | . . . . . . . . . . O O O X . . . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . . O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

My goal here is to exploit aji in order to solidify my connection so that I can use sente to run with this group, rather than jumping out immediately and letting white cut me apart.

Click Here To Show Diagram Code: [go]$$Bcm1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . . . . | $$ | . . . , . . . . 6 X X O . . . , . . . | $$ | . . X . . . . . 1 4 O X X X . O . . . | $$ | . . . . . . . . 2 3 O O O X . . . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . 5 O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Click Here To Show Diagram Code: [go]$$Bcm1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . . . . | $$ | . . . , . . . . 6 X X O . . . , . . . | $$ | . . X . . . . . 2 3 O X X X . O . . . | $$ | . . . . . . . . 1 4 O O O X . . . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . 5 O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Both of these alternative moves I could have tried fail.

Click Here To Show Diagram Code: [go]$$Bcm1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . a b 4 . . . | $$ | . . . , . . . . . X X O . c 3 1 2 . . | $$ | . . X . . . . . . . O X X X 5 O . . . | $$ | . . . . . . . . . . O O O X . 6 . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . . O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

This is one way that the game could go. :b5:

feels incredibly crude, but it is necessary to prevent the white 'a' - black 'b' - white 'c' - black :b3:

- white

cut.

Click Here To Show Diagram Code: [go]$$Bcm1 Move #68 B+1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . 5 4 . . . . | $$ | . . . , . . . . . X X O . 3 2 1 . . . | $$ | . . X . . . . . . . O X X X . O . . . | $$ | . . . . . . . . . . O O O X . . . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . . O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

If he plays :w2:

, I will probably play :b3:

. This is another move that feels crude, but I think it is good in this case because of the aji below:

Click Here To Show Diagram Code: [go]$$Bcm1 Move #68 B+1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . X W . . . . | $$ | . . . , . . . . . X X O . X W X . . . | $$ | . . X . . . . . . . O X X X 5 O 6 . . | $$ | . . . . . . . . . . O O O X . 3 4 . . | $$ | . . . . . . . . . X O . O X 1 O . . . | $$ | . . O . . . . . . . O O X O O 2 O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

And he won't want to see those two stones captured. When I think about shape, I think this variation feels bad, but other voices in my head tell me it is fine, so I'm listening to them. Let's see what happens.

Joaz Banbeck · **#106**

Laman · **#107**

oh hell, this sucks. it took me long time even to realize how badly it sucks. i will post my thoughts as they came to my mind and as i already started to write them:

[first]hmm, i will just answer black's forcing move. i've tried numerous variations few moves before (by move 64, w M10) but didn't post them and didn't note them down either, and now i can't remember if i included also this possible forcing exchange... so now i've browsed them again, some of the sequences went up to move 100 and most of them ended with my fail, but with some quite promising
however, when i wanted to make diagrams from them, i realized that i had missed one move for black almost at the beginning which made all my variation useless...[/first]

[second]when i look at it, it is pretty silly, i guess i really forgot to consider Q10 before. most of my plans were centered around "black will try to catch my group on the left side, so i will have to capture his 5 stones on the right side some way". but if black just secure his position on the right side, it is up to me what to do on the left. and even if it allows me to break from the tightest surround, i will still have to make an eye there.[/second]

[now]it is very bad. not only black can secure himself, he can secure himself in sente:

Click Here To Show Diagram Code: [go]$$Bcm1 Diagram 1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . 1 2 . . | $$ | . . . , . . . . . X X O . . . X W . . | $$ | . . X . . . . . . . O X X X 3 O . . . | $$ | . . . . . . . . . . O O O X . 4 . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . . O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

any deviations for white result in no gain or serious damage for me. then black has very good chances of killing my center group (example sequence):

Click Here To Show Diagram Code: [go]$$Bcm1 Diagram 2 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . a . B O . . | $$ | . . . , . . . . 5 X X O . . b B O . . | $$ | . . X . . . . . 3 2 O X X X B O . . . | $$ | . . . . . . . . . 1 O O O X . W . . . | $$ | . . . . . . . 7 . X O . O X . O . . . | $$ | . . O . . . . . 6 4 O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

i had thought that now i could capture black group on the right, but with his three stones reinforcement, i can not. if i play a, black can answer b and if i try anything else, black plays a[/now]

in this scenario, i lose by choosing any way. that means i can either (a) resign or (b) find a way to end Diagram 1 with sente or (c) find a way to survive after Diagram 2 or (d) find a way to kill black group after Diagram 2. i would hate to take (a) and i don't think it is possible to do (d). (b) is easiest and keeps the game playable but it surely deepens my disadvantage. (c) would be preferable but it is difficult and failure means instant loss

i don't mind losing if i mess up, but it seems to me that black clearly dominates this game - when we played peacefully, he was just getting ahead and when i tried to counter that by fight, my position breaks in pieces - and i hate being inferior to my opponent, so i should better come with some solution

Merry Christmas!

Kayres · **#108**

Joaz Banbeck · **#109**

Kayres wrote:

That is a tricky line. Black can, of course, surround white, but he may not be able to do it with enough liberties. White can respond like this:

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

If black tries to block immediately, white hacks his way out:

Click Here To Show Diagram Code: [go]$$Wc 5 Threatens second eye, 7 is double atari $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . . . . | $$ | . . . , . . . . 7 X X O . . . . . . . | $$ | . . X . . . . . B 5 O X X X . O . . . | $$ | . . . . . . . . 3 4 O O O X . . . . . | $$ | . . . . . . . . 6 X O . O X . O . . . | $$ | . . O . . . . . 2 1 O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

So maybe white extends once before blocking:

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

...which continues like this:

Click Here To Show Diagram Code: [go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . 3 . 5 . . . | $$ | . . . , . . . . . X X O . 1 2 c . . . | $$ | . . X . . . . . X X O X X X 4 O . . . | $$ | . . . . . . . . . . O O O X . d . . . | $$ | . . . . . . . . X X O . O X . O . . . | $$ | . . O . . . X X O O O O X O O . O . . | $$ | . . . . . X . O O X X X X X O O X . . | $$ | . . . O . . . a b . . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Now black is ahead by one in the liberties race, but 'a' and 'b' are miai. As soon as black takes one, white takes the other in sente, thus gaining an extra move and putting himself ahead in the liberties race.
At the other end, 'c' and 'd' complicate white's liberty-filling plans.

Click Here To Show Diagram Code: [go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . 3 . 5 . . . | $$ | . . . , . . . . . X X O . 1 2 c . . . | $$ | . . X . . . . . X X O X X X 4 O . . . | $$ | . . . . . . . . . . O O O X . d . . . | $$ | . . . . . . . . X X O . O X . O . . . | $$ | . . O . . . X X O O O O X O O . O . . | $$ | . . . . . X . O O X X X X X O O X . . | $$ | . . . O . . . a b . . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

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

...and this is getting really hairy. If black makes a mistake, white will win the race and the game.

But as I suggested before, black need not risk these complexities. The honte move below solves all of black's liberties problems. Then the burden is on white to not make a mistake.

Click Here To Show Diagram Code: [go]$$Wcm1 Move #69 B+1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O B . . . . . . | $$ | . . . , . . . . . X X O . . . . . . . | $$ | . . X . . . . . . . O X X X . O . . . | $$ | . . . . . . . . . . O O O X . . . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . . O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

EDIT: my second diagram may have an error.

Kayres · **#110**

Perception · **#111**

youngjae · **#112**

@Perception

Laman · **#113**

Click Here To Show Diagram Code: [go]$$Bcm1 Move #70 B+1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . . . . | $$ | . . . , . . . . . X X O . . . X W . . | $$ | . . X . . . . . . . O X X X . O . . . | $$ | . . . . . . . . . . O O O X . . . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . . O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

sorry for the delay, i had to think about my move a bit

Dusk Eagle · **#114**

Click Here To Show Diagram Code: [go]$$Bcm1 Move #71 B+1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . . . . | $$ | . . . , . . . . . X X O . . B X O . . | $$ | . . X . . . . . . . O X X X . O . . . | $$ | . . . . . . . . . . O O O X . . . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . . O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

He has to respond to this move.

Click Here To Show Diagram Code: [go]$$Wcm1 Move #70 B+1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . 4 6 . | $$ | . . . , . . . . . X X O . . X X O . . | $$ | . . X . . . . . . . O X X X . O 2 5 . | $$ | . . . . . . . . . . O O O X . . 3 . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . 1 O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

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

I'm having doubt about the quality of my last move. Anyway, there's a lot to read out now; the position is quite intense as it stands. Every move is important.

Laman · **#115**

Click Here To Show Diagram Code: [go]$$Bcm1 Move #72 B+1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . W . . | $$ | . . . , . . . . . X X O . . X X O . . | $$ | . . X . . . . . . . O X X X . O . . . | $$ | . . . . . . . . . . O O O X . . . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . . O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Joaz Banbeck · **#116**

White's best is 2 here, I think. It may allow him to get some compensation for the almost certain loss of his center group.

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

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

I still prefer the black position here, but white is getting possible compensation that black need not allow. Black is using his aji on the right before its time.

EDIT:

Dusk Eagle · **#117**

Click Here To Show Diagram Code: [go]$$Bcm1 Move #73 B+1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . O . . | $$ | . . . , . . . . . X X O . . X X O . . | $$ | . . X . . . . . . . O X X X B O . . . | $$ | . . . . . . . . . . O O O X . . . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . . O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Yuck.

Anyways, I must do this to prevent this cut:

Click Here To Show Diagram Code: [go]$$Wcm1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X 2 . O . . | $$ | . . . . . . . . . . O O . 1 . . O . . | $$ | . . . , . . . . . X X O . 3 X X O . . | $$ | . . X . . . . . . . O X X X . O . . . | $$ | . . . . . . . . . . O O O X . . . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . . O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Now, after the :b1:

exchange below, he can't cut:

Click Here To Show Diagram Code: [go]$$Bcm1 $$ --------------------------------------- $$ | 3 . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X 5 a O . . | $$ | . . . . . . . . . . O O b 4 6 7 O . . | $$ | . . . , . . . . . X X O . . X X O . . | $$ | . . X . . . . . . . O X X X 1 O . . . | $$ | . . . . . . . . . . O O O X . 2 . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . . O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

'a' and 'b' become miai.

Note that I don't think that :b4:

at

above is as good a way to handle the cut, due to the following sequence:

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

I thought about playing this way instead:

Click Here To Show Diagram Code: [go]$$Bcm1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . O . . | $$ | . . . , . . . . . X X O . . X X O . . | $$ | . . X . . . . . . . O X X X 5 O a . . | $$ | . . . . . . . . . . O O O X . 3 4 . . | $$ | . . . . . . . . . X O . O X 1 O . . . | $$ | . . O . . . . . . . O O X O O 2 O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

It becomes a ko, but one that is too heavy for him, so after one ko threat he'll have to fill at 'a'.

Click Here To Show Diagram Code: [go]$$Bcm1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . . . . | $$ | . . . , . . . . . X X O . . X X O . . | $$ | . . X . . . . . . . O X X X X O O . . | $$ | . . . . . . . . . . O O O X . X W . . | $$ | . . . . . . . . . X O . O X X O 2 6 . | $$ | . . O . . . . . . . O O X O O O O 1 8 | $$ | . . . . . X . . . X X . X X O O X 3 . | $$ | . . . O . . . . . , . . X . X O X 4 . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X 7 5 . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I thought I had the yose sequence above in sente. But I was wrong:

Click Here To Show Diagram Code: [go]$$Bcm1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . O . . | $$ | . . . , . . . . . X X O . . X X O . . | $$ | . . X . . . . . . . O X X X X O O . . | $$ | . . . . . . . . . . O O O X . X O . . | $$ | . . . . . . . . . X O . O X X O 2 . . | $$ | . . O . . . . . . . O O X O O O O 1 . | $$ | . . . . . X . . . X X . X X O O X 3 . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X 4 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

refutes playing this way.

Click Here To Show Diagram Code: [go]$$Bcm1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . O . . | $$ | . . . , . . . . . X X O . . X X O . . | $$ | . . X . . . . . . . O X X X X O O . . | $$ | . . . . . . . . . . O O O X . X O . . | $$ | . . . . . . . . . X O . O X X O 2 . . | $$ | . . O . . . . . . . O O X O O O O 1 . | $$ | . . . . . X . . . X X . X X O O X 4 . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X 5 3 . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

And in this case, :b5:

isn't sente.

I can still gain a little bit in yose simply by making :b3:

sente, but it costs me a liberty on my group and requires me to play some forcing moves as ko threats so it's probably not the best way to play. Now, the hard thing is deciding where to play my next move once he responds. It feels like one of the most important decisions in the game, so I can't treat it lightly.

Laman · **#118**

Click Here To Show Diagram Code: [go]$$Bcm1 Move #74 B+1 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O X O . . . . O . . X . . . . | $$ | . . X X O O . . . , . . . . . , X . . | $$ | . . X O . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . O . . | $$ | . . . . . . . . . . O O . . . . O . . | $$ | . . . , . . . . . X X O . . X X O . . | $$ | . . X . . . . . . . O X X X X O . . . | $$ | . . . . . . . . . . O O O X . W . . . | $$ | . . . . . . . . . X O . O X . O . . . | $$ | . . O . . . . . . . O O X O O . O . . | $$ | . . . . . X . . . X X . X X O O X . . | $$ | . . . O . . . . . , . . X . X O X . . | $$ | . . . . . X . . . . . . . X . X O O . | $$ | . . . O . . . . . . . . . . X X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Kayres · **#119**

Joaz Banbeck · **#120**

84. Laman (1d) vs. Dusk Eagle (1d)

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