14k game

[Ryukai]

First game in awhile I've been able to play with a clear head, so I figured I'd show it and see what you all have to say. Thanks in advance.

http://files.gokgs.com/games/2016/10/3/N9DP-Pierce.sgf

[EdLee]

Were you B or W ?

C17 is not small.

o7.

Result bad for W.

Already bad shape for W ( W's problem is earlier ).

Bad shape for W ( the problem is earlier ).

C17.

E14.

Bad habit.

N15.

Bad shape, bad habit.

Bad habit.

[Ryukai]

I was black.
- I don't know what's wrong with this. Could you explain more?

[EdLee]

Hi Ryukai,

Please see [sl=HaneAtTheHeadOfTwoStones]Hane @ Head of 2[/sl].

Locally, ignoring the rest of the board,
this exchange is bad for B, good for W:

$$
$$ ? ? ? ? ? ? ? ? ? ?
$$ ? . . . . . . . . ?
$$ ? . . . . O . . . ?
$$ ? . . O O . . . . ?
$$ ? . . X 1 2 . . . ?
$$ ? . . . . . . . . ?
$$ ? ? ? ? ? ? ? ? ? ?

Click Here To Show Diagram Code

[go]$$
$$ ? ? ? ? ? ? ? ? ? ?
$$ ? . . . . . . . . ?
$$ ? . . . . O . . . ?
$$ ? . . O O . . . . ?
$$ ? . . X 1 2 . . . ?
$$ ? . . . . . . . . ?
$$ ? ? ? ? ? ? ? ? ? ?[/go]

Do you get a feeling that head-bumps himself against W's strong shape ?

A different, contrived shape and example:
Given the following, would you play (a) as B ?

$$
$$ ? ? ? ? ? ? ? ? ? ?
$$ ? . . . . . . . . ?
$$ ? . . . . O . . . ?
$$ ? . . X a O . . . ?
$$ ? . . . . O . . . ?
$$ ? . . . . . . . . ?
$$ ? ? ? ? ? ? ? ? ? ?

Click Here To Show Diagram Code

[go]$$
$$ ? ? ? ? ? ? ? ? ? ?
$$ ? . . . . . . . . ?
$$ ? . . . . O . . . ?
$$ ? . . X a O . . . ?
$$ ? . . . . O . . . ?
$$ ? . . . . . . . . ?
$$ ? ? ? ? ? ? ? ? ? ?[/go]

Do you get a feeling the stone is unhappy ?

$$
$$ ? ? ? ? ? ? ? ? ? ?
$$ ? . . . . . . . . ?
$$ ? . . . . O . . . ?
$$ ? . . X 1 O . . . ?
$$ ? . . . . O . . . ?
$$ ? . . . . . . . . ?
$$ ? ? ? ? ? ? ? ? ? ?

Click Here To Show Diagram Code

[go]$$
$$ ? ? ? ? ? ? ? ? ? ?
$$ ? . . . . . . . . ?
$$ ? . . . . O . . . ?
$$ ? . . X 1 O . . . ?
$$ ? . . . . O . . . ?
$$ ? . . . . . . . . ?
$$ ? ? ? ? ? ? ? ? ? ?[/go]

Now compare and study the shape in the game.

[Ryukai]

I think I understand what you mean, but what would be a better alternative to my move?

[EdLee]

Locally, L13 is a candidate.

[schawipp]

A move like is not very big. It enlarges b's territory by maybe 2 points. At the same time it invites w to secure a much bigger territory below.

Therefore at I would probably have played the shoulder hit at H4. It is a nice reduction, there are black stones located in left & top directions and - if white answers by securing the bottom - it could potentially develop a large moyo in the center area.

If there is a drawback with at H4 please someone let me know.

[daal]

Here is how I saw some of these situations.

http://www.lifein19x19.com/forum/download/file.php?id=7760

[Ryukai]

Thanks for the comments, Daal. I actually played as black in that game, though that doesn't make any of your points less helpful. And you're right about the moves at O9 and J12, I let some rather frustrating experiences with getting cut replace a simple reading of the situation.