Should I have lost?

barraktu · Post by **barraktu** » Thu Aug 14, 2014 1:38 am

I feel this game wasn't over because white was ahead... Can someone explain why my opponent resigned?

EdLee · Post by **EdLee** » Thu Aug 14, 2014 2:08 am

Hi barraktu, you would have to ask your opponent.
At these levels, had the game continued, nobody knows who would've won.

The upper left corner: study this joseki --
your

connect looks very solid, but it's not joseki --
there are other variations, but study this basic one.

Every move in this sequence has its meaning.
See if you can figure out why the joseki move

is extend, and not your solid connect

.

barraktu · Post by **barraktu** » Thu Aug 14, 2014 7:58 am

My best guess would be that the extension instead of the solid connection is to stay ahead of the opponent and keep them sealed in the corner. In the game I made a solid connection because I was afraid of the cut on 15-D. But looking at it now, the cut doesn't seem as severe as I thought and trying to cut would have let me take away more of the corner territory. Thank you for the reply, I will try to get in contact with my opponent again.

EdLee · Post by **EdLee** » Thu Aug 14, 2014 5:48 pm

barraktu wrote:My best guess would be that the extension instead of the solid connection is to stay ahead of the opponent and keep them sealed in the corner. In the game I made a solid connection because I was afraid of the cut on 15-D. But looking at it now, the cut doesn't seem as severe as I thought

Good, but we're not done.
Let's study the joseki SGF in Post 2, to keep things simple.
Two homework problems for you:
- If B does not extend on

, if B tenukis, then what is W's follow-up sequence ?
- After

extends, what happens if W cuts D15 ( instead of

) ?

barraktu · Post by **barraktu** » Mon Aug 18, 2014 12:20 am

I'm pretty sure white's next move would be at C-13 after black tenukis. And I think after white cuts black can either push into white's corner or net the cutting stone.

EdLee · Post by **EdLee** » Mon Aug 18, 2014 12:36 am

barraktu wrote:I'm pretty sure white's next move would be at C-13 after black tenukis.

OK, and then ? That's a start, but a single move is not enough:
what is the sequence ? Please show your sequence, with a diagram or SGF.

EdLee · Post by **EdLee** » Mon Aug 18, 2014 12:41 am

barraktu wrote:I think after white cuts black can either push into white's corner or net the cutting stone.

OK, what are the exact sequences.
Please show with a diagram or SGF.

barraktu · Post by **barraktu** » Mon Aug 18, 2014 1:02 pm

I couldn't create the file correctly. But, In both scenarios I imagine the sequences would go as such:
B D-16 -
W - C-17
B D-17 -
W - C-16
B C-15 -
W - B-15
B C-14 -
W - B-14
Sequence One
B Q-4 -
W - B-13
B C-13 -
W - B-11
End Sequence One
B C-13 -
Sequence Two
W - D-15
B E-15 -
W - D-14
B E-13 -
W - D-14
B E-13 -
W - E-14
B F-14 -
W - D-13
B D-12 -

EdLee · Post by **EdLee** » Mon Aug 18, 2014 1:18 pm

Good time to learn How to make Diagrams .

Also, good to figure out what happened to your SGF attempts.

EdLee · Post by **EdLee** » Mon Aug 18, 2014 1:25 pm

Here's a start: you can use it as a template —
just click the button "quote" and edit as you wish:

Click Here To Show Diagram Code: [go]$$B :b1: tenuki $$ --------------------- $$ | . . . . . . . . . . $$ | . . . . . . . . . . $$ | . . O X . . . . . . $$ | . . O X . . . . . , $$ | . O X . . . . . . . $$ | . O X . . . . . . . $$ | . . 2 . . . . . . . $$ | . . . . . . . . . . $$ | . . . . . . . . . . $$ | . . . , . . . . . , $$ | . . . . . . . . . .[/go]

barraktu · Post by **barraktu** » Mon Aug 18, 2014 1:47 pm

EdLee wrote:Here's a start: you can use it as a template —
just click the button "quote" and edit as you wish:
$$B :b1: tenuki
$$ ---------------------
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . O X . . . . . .
$$ | . . O X . . . . . ,
$$ | . O X 2 3 . . . . .
$$ | . O X 4 8 9 . . . .
$$ | . . X 6 5 . . . . .
$$ | . . . 7 . . . . . .
$$ | . . . . . . . . . .
$$ | . . . , . . . . . ,
$$ | . . . . . . . . . .
Click Here To Show Diagram Code
[go]$$B :b1: tenuki $$ --------------------- $$ | . . . . . . . . . . $$ | . . . . . . . . . . $$ | . . O X . . . . . . $$ | . . O X . . . . . , $$ | . O X 2 3 . . . . . $$ | . O X 4 8 9 . . . . $$ | . . X 6 5 . . . . . $$ | . . . 7 . . . . . . $$ | . . . . . . . . . . $$ | . . . , . . . . . , $$ | . . . . . . . . . .[/go]

EdLee · Post by **EdLee** » Mon Aug 18, 2014 10:48 pm

barraktu wrote:
$$B
$$ ---------------------
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . O X . . . . . .
$$ | . . O X . . . . . ,
$$ | . O X 2 3 . . . . .
$$ | . O X 4 8 9 . . . .
$$ | . . X 6 5 . . . . .
$$ | . . . 7 . . . . . .
$$ | . . . . . . . . . .
Click Here To Show Diagram Code
[go]$$B $$ --------------------- $$ | . . . . . . . . . . $$ | . . . . . . . . . . $$ | . . O X . . . . . . $$ | . . O X . . . . . , $$ | . O X 2 3 . . . . . $$ | . O X 4 8 9 . . . . $$ | . . X 6 5 . . . . . $$ | . . . 7 . . . . . . $$ | . . . . . . . . . .[/go]

Right — in your variation above,

is self-atari, so W would not play it.

So

nets the two

stones:

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

Which means there is no cut at

after

extends,
which means the two extends,

and

, are a more efficient way
to fix the cut than your solid connect

.

EdLee · Post by **EdLee** » Mon Aug 18, 2014 10:54 pm

The other homework problem: what happens after

?

Click Here To Show Diagram Code: [go]$$B :b1: tenuki $$ --------------------- $$ | . . . . . . . . . . $$ | . . . . . . . . . . $$ | . . O X . . . . . . $$ | . . O X . . . . . , $$ | . O X . . . . . . . $$ | . O X . . . . . . . $$ | . . 2 . . . . . . . $$ | . . . . . . . . . . $$ | . . . . . . . . . . $$ | . . . , . . . . . , $$ | . . . . . . . . . .[/go]

barraktu · Post by **barraktu** » Mon Aug 18, 2014 11:19 pm

EdLee wrote:The other homework problem: what happens after ?
$$B :b1: tenuki
$$ ---------------------
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . O X . . . . . .
$$ | . . O X . . . . . ,
$$ | . O X 3 . 5 . . . .
$$ | . O X . . . . . . .
$$ | . . 2 4 . 6 . . . .
$$ | . . . . . . . . . .
$$ | . . . . . . . . . .
$$ | . . . , . . . . . ,
$$ | . . . . . . . . . .
Click Here To Show Diagram Code
[go]$$B :b1: tenuki $$ --------------------- $$ | . . . . . . . . . . $$ | . . . . . . . . . . $$ | . . O X . . . . . . $$ | . . O X . . . . . , $$ | . O X 3 . 5 . . . . $$ | . O X . . . . . . . $$ | . . 2 4 . 6 . . . . $$ | . . . . . . . . . . $$ | . . . . . . . . . . $$ | . . . , . . . . . , $$ | . . . . . . . . . .[/go]

This one is interesting to me. I'm no sure if I get it.

EdLee · Post by **EdLee** » Mon Aug 18, 2014 11:46 pm

You are very, very scared of cuts. (Probably because some players cut you into pieces and you died many horrible deaths ? )
The solution is not to connect every single cut as soon as you are worried.
Rather, strive to improve your reading and fighting skills.

B would hane at

— and then ?

Click Here To Show Diagram Code: [go]$$B :b1: tenuki $$ --------------------- $$ | . . . . . . . . . . $$ | . . . . . . . . . . $$ | . . O X . . . . . . $$ | . . O X . . . . . , $$ | . O X . . . . . . . $$ | . O X . . . . . . . $$ | . . 2 3 . . . . . . $$ | . . . . . . . . . . $$ | . . . . . . . . . . $$ | . . . , . . . . . , $$ | . . . . . . . . . .[/go]

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