OCA's log

oca · **#61**

@ Edlee -> I replyed on the previous page...

Knotwilg wrote:

Thanks! Self review is extremely important and very helpful for reviewers. We can draw a few lessons from this:

Game 1: revisit basic [sl=]nakade[/sl] like [sl=]farmer's hat[/sl], [sl=]almost fill[/sl] four stone eyespaces, ... Life & Death by Davies might be a good (re)read.

Game 2: seems like a lot of these moves were panic moves under time pressure, so ... allow yourself to play games with some less severe time limits. You should at least be able to get 10s per move.

But there's more under the surface here. Your say that you wanted to do something before it's too late. Well,

1) the board is big; if your opponent already has a strong structure somewhere, better play elsewhere. If it is weak, of course you can attack it
2) if you have decided an invasion is due, then don't try to save all the stones
3) When you "reduce a liberty" of a strong opponent group, you are actually removing your own. Better stay away from those stones and make a base for your own, or flee to the centre. This is why I didn't mention 26: it was a good, light escape (overall still too close to his strength but that's another matter)
4) aside from basic eye shapes you also need to relearn the basics of counting liberties. Although, you may know that but ...
5) You say you play "moves you know that don't work". This is of course a severe psychological issue, related to panic. I can only revert to my initial comment. Give yourself some time to verify if a move works. If you think it works, play it. If you think it doesn't work, then don't. It may cause anxiety, but still it will be better to go through the anxiety of the unknown than pursue the security of failure.

Looking forward to your next games!

Thank you very much for all these advices. I'have at least 40 minutes in the train where I can do something related to go but not a game, I will try improve counting liberty (any here I have to strat from the very beginning as I never studied that subject... I'm just aware of big eyes, that's all...seems to be a wide topic).

[edit]

Knotwilg wrote:

Thanks! Self review is extremely important and very helpful for reviewers.

I wil try to include a self review in each of the game I will post, writing things may also help me to avoid these "stupids moves" that I know but cannot help to play...
[/edit]

oca · **#62**

So... here we go... lots of comments in that just played game...
I think that was better, but still some problems to apply my goals...

EdLee · **#63**

Hi oca, look at :w54:

: look at the whole board, look at :w54:

.

is not forced: find a better local move.

:w60:

almost a pass.

:w68:

wasted one ko threat.

:b69:

what's the correct local move for B ?

oca · **#64**

Hi Edlee,

- :w58:

is not forced: find a better local move.

This 58 looks better then my original "a"

Click Here To Show Diagram Code: [go]$$Bcm57 $$ . . . . . . . . . . | $$ , . . . . . X X . . | $$ . . . . . 1 2 O O . | $$ . . . . X O a O X . | $$ . . . O O X X O X . | $$ . . . O X O X X O . | $$ . . . . . O O X O . | $$ , . . . . . X O . . | $$ . X . O O X X O . . | $$ . . . X X X O O O . | $$ . . . . . X X O X . | $$ --------------------+[/go]

-

what's the correct local move for B ?

I would say just M3 instead of original M2 at "a"?

Click Here To Show Diagram Code: [go]$$Wcm68 $$ | . . X . . . . . . . . . O X O . . O . | $$ | . . . X . . . . . . . . . . O O . O . | $$ | . . . X . . . . . , . . . . 1 X O . . | $$ | . . . . . . X . . . X 2 O O X X O . . | $$ | . . . . . . . . . . . a X X X O O O . | $$ | . . . . . . . . . . . . . . X X O X . | $$ +---------------------------------------+[/go]

Uberdude · **#65**

oca wrote:

Hi Edlee,

- :w58:

is not forced: find a better local move.

This 58 looks better then my original "a"

Click Here To Show Diagram Code: [go]$$Bcm57 $$ . . . . . . . . . . | $$ , . . . . . X X . . | $$ . . . . . 1 2 O O . | $$ . . . . X O a O X . | $$ . . . O O X X O X . | $$ . . . O X O X X O . | $$ . . . . . O O X O . | $$ , . . . . . X O . . | $$ . X . O O X X O . . | $$ . . . X X X O O O . | $$ . . . . . X X O X . | $$ --------------------+[/go]

Actually, not really. It's not clear that the snapback is better than capture as black can now escape at o5 with atari. Also snapback gives a ko threat. The advantage of q9 is it makes a cut at p10 (but black can reasily sacrifice with p11 so it's not a particularly big cut). Ed was right that your 58 was not forced, there are two choices, but I wouldn't say your move was clearly wrong.

oca · **#66**

Positve win/lost ratio on IGS for the first time! but not by much... 59/58

oca · **#67**

A funny one, that is not from me... it's a 9x9 game that oppose my brother and my daughter which is 7 years old.

My brother has a total of... 2 games ( this one, and one we just played 5 min earlier to teach him the rules...) and my daughter has nearly 5 games or so... we mainly play atari go together.

Despite we a far away from hikaru's kid level, I'm still very proud of my daughter and I really enjoyed seeing her playing go.

My daugther is Black, enjoy ;-)

jeromie · **#68**

oca wrote:

A funny one, that is not from me...

Nice. My daughter is only 19 months old, so she was excited when I let her help me sort the black and white stones into their proper bowls. I hope we can play together one day. :-)

EdLee · **#69**

oca wrote:

My daugther is Black, enjoy ;-)

Congrats!

oca · **#70**

I played a few more games, some went just fine... and some others... well how to say that...

Attachment:

rejected.jpg [ 13.87 KiB | Viewed 7630 times ]

And this one went bad too but I wanted to play something else as an exercise for influence so I knew that would be a difficult one with that "ponnuki in the center" opening...

EdLee · **#71**

Hi oca,

First game: why is :b13:

sente ?
Good to learn :b23:

.

why are you still playing in this area ?
:b33:

your corner shape is completely crashed — broken shape for W.
:w36:

?

EdLee · **#72**

Hi oca,

Second game: :b13:

atari only move.

When you hane :b11:

, W can extend to o5,
or W can block with the tiger's mouth at P3
(W also has other options.)
You can think of W o5 and W P3 as miai.
In the game, W took P3, so you take the other miai point, o5.
If :w12:

extends to o5, then you play :b13:

at P3, push.

In the game, you allow W to take both: W could :w14:

at o5.

These are very basic sequences: starting with :w10:

attach.
Good to learn them.

skydyr · **#73**

In the first game, at :w24:

, white can play at G4 instead of taking away his own liberty and use the capturing race to break out with the corner group. This would at least be decent. Black should have just extended with his 4 stones, because the corner isn't entirely alive as yet and white's other group would just be a liability that black could chase around the board to win. Once white's given up both the corner and the outside, though, it's kind of game over. Such is life.

oca · **#74**

EdLee wrote:

Hi oca,

First game: why is :b13:

sente ?

Hi Edlee, first, I should say that I'm not sure I really understand fully what sente is... :oops:

I understand it as "something I should absolutly reply to" as opposite to "gote" that is something I can play tenuki... I hope this is correct...

Now to come back to the question, well I'm not sure...

things that comes in my head are :
- Because black get to much influence if :b13: