Life In 19x19

Hi.

I played another game that I want know your opinion. I am black and white is one player of OGS (I will pass link of this topic). I can analysis the next move:

I have to mention that my move 43 is very vital to make to reduce Moyo who was preparing.

I think that my move 49 is a fail because I tried orient my rock to defense and make a exit to the center.

My move 147 was so important because around the move 110, the game began to close territory.

When my parnet made 176, I swaeted a lot. I counted threath and I wanted play a risk ko that I thought that I could win. At the end, we didn't a ko. What do you thing about this moment?

I thought that white 184 is a big error in this moment of game because we are close in points and he lose sente to reduce me 2 points. My 185 is a rare move, I wanted connect because I was scared that appear a possibility of new important ko thought I will lose sente. But white made a new big fail because with 186 waste the opportunity to recover sente.

With white 222, he waste the last point that he could make.

Hi Darsey, it's helpful if you first double-check that your SGF tags work...

Here's the game from the link.

S2W, thanks.

a bit strange; o16 better.

leaves a weakness at K17. Instead, you can play the same joseki, the 2-space extension, as .

you cannot take a vacation in the middle of a fight. Your M10 group is still in trouble; you must take care of it first.

if L10, can you live ?

Terrible for W. Broken shape for W.

EdLee wrote:Hi Darsey, it's helpful if you first double-check that your SGF tags work...

It is rare because I can read it, but very thanks to SW2.


was because I thought a good move between two corners with black presence.

When you played atari with 15 what was your plan if white extended, instead of generously giving you a ponnuki?

Uberdude wrote:When you played atari with 15 what was your plan if white extended, instead of generously giving you a ponnuki?

I made because I thought that he will play S17, S18. He should capture my rock in R16 because I could give fight. In my plan, I thought that I could finish good in this joseki in gote, he could attack or make a shimari.

But I finish with the ponnuki, I didnt hope it.

Darsey wrote:I made because I thought that he will play S17, S18. He should capture my rock in R16 because I could give fight. In my plan, I thought that I could finish good in this joseki in gote, he could attack or make a shimari.

This isn't a joseki. To start with, as Ed said, is strange, o16 is better but it's ok for your level. But the big problem is r16 and then r18 (in fact r16 is a strong move as you have the ladder but is quite advanced). If he would capture it why did you play it? Sometimes it can be ok to sacrifice a stone (we don't call them rocks!) if you get enough compensation from it (in fact you often sacrifice two stone to get more forcing moves), but here you don't get much in return and even worse create a cutting point in your shape at 6 because you gave white a stone at 2:

Click Here To Show Diagram Code

[go]$$B
$$ ----------------+
$$ . . . . . . . . |
$$ . . . . 7 3 5 . |
$$ . . . 6 # O 4 . |
$$ . . a # 2 1 . . |
$$ . . . . O . . . |
$$ . . . . . . . . |
$$ . . . . . . . . |[/go]

Now because white doesn't have the ladder at a he could just capture the r16 stone and you then have to capture that cutting stone because you created a weakness in your shape (9 10 push first probably good).

Click Here To Show Diagram Code

[go]$$Wm8
$$ ----------------+
$$ . . . . . . . . |
$$ . . . . X X X . |
$$ . . 4 O X O O . |
$$ . . . X O X 1 . |
$$ . . . 2 O . . . |
$$ . . . . 3 . . . |
$$ . . . . . . . . |[/go]

White could also think about going for the outside and letting you have the corner:

Click Here To Show Diagram Code

[go]$$Wm8
$$ ----------------+
$$ . . . . . . . . |
$$ . . . . X X X . |
$$ . . 1 O X O O . |
$$ . . . X O X . . |
$$ . . . . O 2 . . |
$$ . . . . 3 . . . |
$$ . . . . . . . . |[/go]

So it would be a lot better not to create that cutting point in your shape and simply play calmly like this:

Click Here To Show Diagram Code

[go]$$B
$$ ----------------+
$$ . . . . . . . . |
$$ . . . . . 1 3 . |
$$ . . . . X O . . |
$$ . . . X , 2 . . |
$$ . . . . O . . . |
$$ . . . . . . . . |
$$ . . . . . . . . |
$$ . . . . . 4 . . |
$$ . . . . . . . . |[/go]

However, if you do get into bad position, there is still a better way to handle it than @ s18.

Click Here To Show Diagram Code

[go]$$B
$$ ----------------+
$$ . . . . . . . . |
$$ . . . 1 . X . . |
$$ . . . a X O O . |
$$ . . . X O X . . |
$$ . . . . O . . . |
$$ . . . . . . . . |
$$ . . . . . . . . |
$$ . . . . . . . . |[/go]

Why is this better? It fixes your cutting point at a. So would simply connecting at a, but this hanging connection actually does two things: it is also sente to capture white's two corner stones (as it also defends the cutting point at b so you can hane and take a liberty with 5):

Click Here To Show Diagram Code

[go]$$B
$$ ----------------+
$$ . . . . . . 5 . |
$$ . . . 1 b X 4 . |
$$ . . . . X O O . |
$$ . . . X O X 3 . |
$$ . . . . O . . . |
$$ . . . . . . . . |
$$ . 2 . . . . . . |
$$ . . . . . . . . |[/go]

So white would defend like this, and you would not need to take gote to defend your cutting point like before, though it would still probably be sensible to take gote to extend like this:

Click Here To Show Diagram Code

[go]$$B
$$ --------------------+
$$ . . . . . . . . 3 . |
$$ . . . . . 1 , X 2 . |
$$ . 5 . . . . X O O . |
$$ , . . . . X O X . . |
$$ . . . . . . O 4 . . |
$$ . . . . . . . . . . |
$$ . . . . . . . . . . |
$$ . . . . . . . . . . |[/go]

There is a similar shape to this that often appears near the edge of the board:

Click Here To Show Diagram Code

[go]$$W
$$ . . . . . . |
$$ . . . . . . |
$$ . . X . . . |
$$ . . X O 2 . |
$$ . . O X X . |
$$ . . . O 1 . |
$$ . . . . . . |
$$ . . . . . . |[/go]

is obviously sente to capture the black two stones, but after black defends white still has a cut. What move would be better?

Click Here To Show Diagram Code

[go]$$B
$$ ----------------+
$$ . . . . a . . . |
$$ . . . 3 2 9 0 . |
$$ . . . 5 X O . . |
$$ . . . X 4 . . . |
$$ . . . 1 O . . . |
$$ . . . 7 6 . . . |
$$ . . . . 8 . . . |
$$ . . . . . . . . |
$$ . . . . . . . . |[/go]

@ "a"

reverts to joseki.

Uberdude wrote:(we don't call them rocks!)

Sorry, it was a terrible confusion.

I understand your josekis. It was a better position that I thought make and that how finish.


I want recovery one ask:

Darsey wrote:When my parnet made 176, I swaeted a lot. I counted threath and I wanted play a risk ko that I thought that I could win. At the end, we didn't a ko. What do you thing about this moment?

What do you think if we play a ko?