Teamovitch #1

User avatar
Shaddy
Lives in sente
Posts: 1206
Joined: Sat Apr 24, 2010 2:44 pm
Rank: KGS 5d
GD Posts: 0
KGS: Str1fe, Midorisuke
Has thanked: 51 times
Been thanked: 192 times

Re: Teamovitch #1

Post by Shaddy »

I disagree with the last move. One space to the left would be sente against the corner (Red missed a variation where black has millions of internal ko threats. That ko is pretty much unwinnable)
User avatar
fwiffo
Gosei
Posts: 1435
Joined: Tue Apr 20, 2010 6:22 am
Rank: Out of practice
GD Posts: 1104
KGS: fwiffo
Location: California
Has thanked: 49 times
Been thanked: 168 times

Re: Teamovitch #1

Post by fwiffo »

Black chat
Click Here To Show Diagram Code
[go]$$Bcm51 Prisoners: None
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . W . . . . f . . . X . . . . . |
$$ | . . . X W . . . . , . . . . . X . . . |
$$ | . X X W W . . . . . . . . . . . X . . |
$$ | . O O X . . . . . . . . . . . O O . . |
$$ | . O X X . a . . . . b . . . . . . . . |
$$ | . . O e . . . . . . X O . . . . . . . |
$$ | . . . . . . . . . O O X . . . . O . . |
$$ | . . . x x x . . . O X X . . . , . . . |
$$ | . . O x c x . . . O X . O O . . . . . |
$$ | . . . x x x . . . O X X . . O . X . . |
$$ | . . . . . . . . d z O X X . . . . . . |
$$ | . . . . . . . . y O . O X . O . . . . |
$$ | . . . . . . . . X . . O . X O . O O . |
$$ | . . X , . . . . . , . . . X O , X X . |
$$ | . . . . X . . . . X . O X . X X . . . |
$$ | . . . . . . . . . . . O . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

I think just trying to run with the group would not go well. I think we need to find a creative way to sacrifice it. I'm adding points e and f to Jordus's diagram. We could play e in sente, but then it becomes harder to sacrifice. We could play f and leave the three stones for later. It would threaten to start an attack on the marked white stones with something like a, so white might have to clean up the aji immediately.

I'm currently leaning toward a move in the vicinity c, which is a pretty deep reduction of white's moyo that threatens to rescue our stranded stones.
User avatar
Joaz Banbeck
Judan
Posts: 5546
Joined: Sun Dec 06, 2009 11:30 am
Rank: 1D AGA
GD Posts: 1512
Kaya handle: Test
Location: Banbeck Vale
Has thanked: 1080 times
Been thanked: 1434 times

Re: Teamovitch #1

Post by Joaz Banbeck »

To observers
I like Fwiffos reasoning. I want the shoulder jhit near c.
Help make L19 more organized. Make an index: https://lifein19x19.com/viewtopic.php?f=14&t=5207
User avatar
fwiffo
Gosei
Posts: 1435
Joined: Tue Apr 20, 2010 6:22 am
Rank: Out of practice
GD Posts: 1104
KGS: fwiffo
Location: California
Has thanked: 49 times
Been thanked: 168 times

Re: Teamovitch #1

Post by fwiffo »

Black suggestion:
Click Here To Show Diagram Code
[go]$$Bcm51 Prisoners: None
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . O . . . . . . . . X . . . . . |
$$ | . . . X O . . . . , . . . . . X . . . |
$$ | . X X O O . . . . . . . . . . . X . . |
$$ | . O O X . . . . . . . . . . . O O . . |
$$ | . O X X . . . . . . . . . . . . . . . |
$$ | . . O . . . . . . . X O . . . . . . . |
$$ | . . . . . . . . . O O X . . . . O . . |
$$ | . . . . . . . . . O X X . . . , . . . |
$$ | . . O . . . . . . O X . O O . . . . . |
$$ | . . . 7 . . . . . O X X . . O . X . . |
$$ | . . . . . . . . . . O X X . . . . . . |
$$ | . . . . . . . . . O . O X . O . . . . |
$$ | . . . . . . . . X . . O . X O . O O . |
$$ | . . X , . . . . . , . . . X O , X X . |
$$ | . . . . X . . . . X . O X . X X . . . |
$$ | . . . . . . . . . . . O . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

I've decided I like this reduction move the best. It's less ambitious, but it makes it impossible for white to swallow us whole. White has so much influence that we could get in even more trouble if we went deep. At the same time, this works really well with our stones in the lower left, potentially building up a large area if white gets overly cautious about eating the three black stones inside.
User avatar
jts
Oza
Posts: 2662
Joined: Sat Sep 18, 2010 4:17 pm
Rank: kgs 6k
GD Posts: 0
Has thanked: 310 times
Been thanked: 632 times

Re: Teamovitch #1

Post by jts »

Question for black:
Looking at the board now, do you still think that letting your lower right corner get sealed off from the center would have been the end of the world?
User avatar
Joaz Banbeck
Judan
Posts: 5546
Joined: Sun Dec 06, 2009 11:30 am
Rank: 1D AGA
GD Posts: 1512
Kaya handle: Test
Location: Banbeck Vale
Has thanked: 1080 times
Been thanked: 1434 times

Re: Teamovitch #1

Post by Joaz Banbeck »

jts wrote:Question for black:
Looking at the board now, do you still think that letting your lower right corner get sealed off from the center would have been the end of the world?


Yes.
Help make L19 more organized. Make an index: https://lifein19x19.com/viewtopic.php?f=14&t=5207
User avatar
fwiffo
Gosei
Posts: 1435
Joined: Tue Apr 20, 2010 6:22 am
Rank: Out of practice
GD Posts: 1104
KGS: fwiffo
Location: California
Has thanked: 49 times
Been thanked: 168 times

Re: Teamovitch #1

Post by fwiffo »

It would have been awful. The biggest problem is that we had to live in gote, which really was because we had shape problems on our way out, IMO. If we had somehow been able to leave the corner in sente, we'd be up to our asses in candy and unicorns right about now.
User avatar
Joaz Banbeck
Judan
Posts: 5546
Joined: Sun Dec 06, 2009 11:30 am
Rank: 1D AGA
GD Posts: 1512
Kaya handle: Test
Location: Banbeck Vale
Has thanked: 1080 times
Been thanked: 1434 times

Re: Teamovitch #1

Post by Joaz Banbeck »

For observers only ( good stuff for beginners here ):
fwiffo wrote:\It would have been awful. The biggest problem is that we had to live in gote, which really was because we had shape problems on our way out, IMO. If we had somehow been able to leave the corner in sente, we'd be up to our asses in candy and unicorns right about now.


Fwiffo is correct, but it is actually a little more complicated than he describes. Sente/gote are not absolute terms, although we tend to treat them as such. Sente is relative to a given position.

If there are 10 point moves available on the board, and I play a move that threatens to make 5 points, it is gote, for my opponent can profit by ignoring it. But if the biggest move elsewhere on the board is 3 points, and I make that same 5-point threat, then it is sente, for my opponent will take a loss if he ignores it.

Sente is relative to the situation. And the situation changes. ( There are lots of ways that it can change. The most certain change is in the value of the biggest move: it tends to steadily decrease. See Bill's SL post on 'temperature' at http://senseis.xmp.net/?Temperature )

The relevance of this is that we do have some threats over on the right. They just aren't big enough right now. But they will be sometime. As the board gets more crowded and the valus of available moves decreases, suddenly they will have to go back there and defend. FWIW, I hope that we get back there first. We may be able to cause them some serious trouble.

If we get a strong presence in the top center, such that their Q15 and R15 stones can't run westward, then we may be able to start a deadly attack on the right.
Help make L19 more organized. Make an index: https://lifein19x19.com/viewtopic.php?f=14&t=5207
User avatar
Jordus
Site Admin
Posts: 1125
Joined: Fri Dec 04, 2009 6:06 pm
Rank: KGS 9k
GD Posts: 0
Universal go server handle: Jordus
Location: Allegan, MI, USA
Has thanked: 16 times
Been thanked: 116 times
Contact:

Re: Teamovitch #1

Post by Jordus »

Black Chat

I ended up heading to starbucks tonight to study and spent some of that time on this game...

a move I became interested in..... i also had previously suggested (a), but as i looked I think (b) may be a better move as it gives black the chance to make a wall that will allow us to use the cut at (z) (provided white cuts at x, if white plays y we create a bamboo joint at a, with the bamboo joint in pace we can run for life or then play the shoulder hit..) to create a wall we can use to force life of our groups....

Click Here To Show Diagram Code
[go]$$Bcm1
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . O . . . . . . . . X . . . . . |
$$ | . . . X O . . . . , . . . . . X . . . |
$$ | . X X O O . . . . . . . . . . . X . . |
$$ | . O O X x b . . . . . . . . . O O . . |
$$ | . O X X . a . . . . . . . . . . . . . |
$$ | . . O y . . . . . . X O . . . . . . . |
$$ | . . . . . . . . . O O X . . . . O . . |
$$ | . . . 1 . . . . . O X X . . . , . . . |
$$ | . . O . . . . . . O X . O O . . . . . |
$$ | . . . . . . . . . O X X . . O . X . . |
$$ | . . . . . . . . z . O X X . . . . . . |
$$ | . . . . . . . . . O . O X . O . . . . |
$$ | . . . . . . . . X . . O . X O . O O . |
$$ | . . X , . . . . . , . . . X O , X X . |
$$ | . . . . X . . . . X . O X . X X . . . |
$$ | . . . . . . . . . . . O . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
I'm thinking...
User avatar
fwiffo
Gosei
Posts: 1435
Joined: Tue Apr 20, 2010 6:22 am
Rank: Out of practice
GD Posts: 1104
KGS: fwiffo
Location: California
Has thanked: 49 times
Been thanked: 168 times

Re: Teamovitch #1

Post by fwiffo »

Bump
User avatar
Jordus
Site Admin
Posts: 1125
Joined: Fri Dec 04, 2009 6:06 pm
Rank: KGS 9k
GD Posts: 0
Universal go server handle: Jordus
Location: Allegan, MI, USA
Has thanked: 16 times
Been thanked: 116 times
Contact:

Re: Teamovitch #1

Post by Jordus »

jedo?
I'm thinking...
User avatar
Jedo
Lives in gote
Posts: 588
Joined: Wed Apr 21, 2010 3:30 am
Rank: 2D KGS
GD Posts: 0
Location: NY
Has thanked: 123 times
Been thanked: 46 times

Re: Teamovitch #1

Post by Jedo »

Sorry guys, I was at a tournament yesterday. Suggestion
Click Here To Show Diagram Code
[go]$$Bcm51 Prisoners: None
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . O . . . . 7 . . . X . . . . . |
$$ | . . . X O . . . . , . . . . . X . . . |
$$ | . X X O O . . . . . . . . . . . X . . |
$$ | . O O X . . . . . . . . . . . O O . . |
$$ | . O X X . . . . . . . . . . . . . . . |
$$ | . . 6 . . . . . . . X O . . . . . . . |
$$ | . . . . . . . . . O O X . . . . O . . |
$$ | . . . , . . . . . O X X . . . , . . . |
$$ | . . O . . . . . . O X . O O . . . . . |
$$ | . . . . . . . . . O X X . . O . X . . |
$$ | . . . . . . . . . . O X X . . . . . . |
$$ | . . . . . . . . . O . O X . O . . . . |
$$ | . . . . . . . . X . . O . X O . O O . |
$$ | . . X , . . . . . , . . . X O , X X . |
$$ | . . . . X . . . . X . O X . X X . . . |
$$ | . . . . . . . . . . . O . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

I like Fwiffo's suggestion to, but my concern is that it forces white to lock up a lot of points possible. This take points for us while starting to bring the aji of saving those stone to life due to some pressure on white's four stones. I would go for a wider extenstion, but it seems dangerous
"There are no limits. There are plateaus, but you must not stay there, you must go beyond them. If it kills you, it kills you. A man must constantly exceed his level." -- Bruce Lee
User avatar
Jordus
Site Admin
Posts: 1125
Joined: Fri Dec 04, 2009 6:06 pm
Rank: KGS 9k
GD Posts: 0
Universal go server handle: Jordus
Location: Allegan, MI, USA
Has thanked: 16 times
Been thanked: 116 times
Contact:

Re: Teamovitch #1

Post by Jordus »

Black Chat
so... fwiffo chose (a), jedo (b), now I just need to decided between (c), (d), and (e)...
Click Here To Show Diagram Code
[go]$$Bcm51 Prisoners: None
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . O . . . . b . . . X . . . . . |
$$ | . . . X O . . . . , . . . . . X . . . |
$$ | . X X O O . . . . . . . . . . . X . . |
$$ | . O O X . d . . . . . . . . . O O . . |
$$ | . O X X . c . . . . . . . . . . . . . |
$$ | . . O . . . . . . . X O . . . . . . . |
$$ | . . . . . . . . . O O X . . . . O . . |
$$ | . . . e . . . . . O X X . . . , . . . |
$$ | . . O . . . . . . O X . O O . . . . . |
$$ | . . . a . . . . . O X X . . O . X . . |
$$ | . . . . . . . . . . O X X . . . . . . |
$$ | . . . . . . . . . O . O X . O . . . . |
$$ | . . . . . . . . X . . O . X O . O O . |
$$ | . . X , . . . . . , . . . X O , X X . |
$$ | . . . . X . . . . X . O X . X X . . . |
$$ | . . . . . . . . . . . O . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
I'm thinking...
User avatar
Joaz Banbeck
Judan
Posts: 5546
Joined: Sun Dec 06, 2009 11:30 am
Rank: 1D AGA
GD Posts: 1512
Kaya handle: Test
Location: Banbeck Vale
Has thanked: 1080 times
Been thanked: 1434 times

Re: Teamovitch #1

Post by Joaz Banbeck »

To observers:
Jedo wrote:... I would go for a wider extension, but it seems dangerous.


So? We're behind. We have to play aggressively.

Not only is a wider extension bigger, but if we play it just a little bit further and/or a little bit higher it becomes a ladder breaker for the ladder coming from the center of the board.
Help make L19 more organized. Make an index: https://lifein19x19.com/viewtopic.php?f=14&t=5207
User avatar
Jordus
Site Admin
Posts: 1125
Joined: Fri Dec 04, 2009 6:06 pm
Rank: KGS 9k
GD Posts: 0
Universal go server handle: Jordus
Location: Allegan, MI, USA
Has thanked: 16 times
Been thanked: 116 times
Contact:

Re: Teamovitch #1

Post by Jordus »

Black Suggestion:
Click Here To Show Diagram Code
[go]$$Bcm51 Prisoners: None
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . X . O . . . . . . . . X . . . . . |
$$ | . . . X O . . . . , . . . . . X . . . |
$$ | . X X O O . . . . . . . . . . . X . . |
$$ | . O O X a 7 . . . . . . . . . O O . . |
$$ | . O X X . . . . . . . . . . . . . . . |
$$ | . . 6 . . . . . . . X O . . . . . . . |
$$ | . . . . . . . . . O O X . . . . O . . |
$$ | . . . , . . . . . O X X . . . , . . . |
$$ | . . O . . . . . . O X . O O . . . . . |
$$ | . . . . . . . . . O X X . . O . X . . |
$$ | . . . . . . . . . . O X X . . . . . . |
$$ | . . . . . . . . . O . O X . O . . . . |
$$ | . . . . . . . . X . . O . X O . O O . |
$$ | . . X , . . . . . , . . . X O , X X . |
$$ | . . . . X . . . . X . O X . X X . . . |
$$ | . . . . . . . . . . . O . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


I dont like the white push at (a) too much, but i do like getting the bamboo joint if they play anywhere else... the push wouldnt be the end of the world either... i can see it working out after a fight in a way... hopefully i read that side right..
I'm thinking...
Post Reply