Life In 19x19
http://lifein19x19.com/

More Enterprising?
http://lifein19x19.com/viewtopic.php?f=4&t=15965
Page 1 of 1

Author:  BlindGroup [ Mon Aug 13, 2018 6:29 pm ]
Post subject:  More Enterprising?

So, I had an opportunity to try to play a more "enterprising" fuseki, and I think my moves were sharper this time around. I then chose to make an early cut and the early middle game went badly. I think my opponent and I then traded mistakes -- my poor shape and direction of play versus his slow moves -- and I managed to squeeze out a 3 point victory.

The good news is that I seem to be playing even with the sandbaggers at my current level. This guy should have given me a several stones based on his rank history. Ah, IGS...

I'd also be very interested to know about moves 47-49 in the following diagram. Cutting the white stones seems like a good strategic move, but was it too early?

Click Here To Show Diagram Code
[go]$$cB
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . X O . O X . X X . . . . . . . . . . |
$$ | . . X O . X O . O X . . . X . O O . . |
$$ | . X X O . 1 O . O , X . . . . X . O . |
$$ | . X O O O 2 3 . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . X . X . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . X . X . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . O . O . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . , . . . . . X O O . |
$$ | . . . . . . . . . . . . . X . X X O . |
$$ | . . . . . . . . . . . . . . . . . X . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]


Full game:



Attachments:
2018-08-14 W IGS 7k+.sgf [9.24 KiB]
Downloaded 427 times

Author:  EdLee [ Mon Aug 13, 2018 6:57 pm ]
Post subject: 

Hi BG,

:b11: Maybe consider kicking first, then Q11...
Direct pincer allows W R16 attach options.

:b13: Consider R9.

:b15: R17 big. ( You missed the extension on :b13:. )

Instead of ( :b11: :b13: :b15: :b17: ) 4 boxy stones near Q10, I prefer:
- :b11: kicks, then :b13: Q11 pincer ( 1 stone ~Q10; other 2 elsewhere ) ;
-- or, after missing the kick --
- ( :b11:, and :b13: @ R9 ), ( 2 stones ~Q10; other 2 elsewhere ) ;

( Notice the inefficiency of :b11: :b13: :b15: :b17:. )

Author:  Tryss [ Mon Aug 13, 2018 8:24 pm ]
Post subject:  Re: More Enterprising?

:b43: at B13 instead would have saved you of some troube later in the game.

Author:  daal [ Mon Aug 13, 2018 11:44 pm ]
Post subject:  Re: More Enterprising?

Tryss wrote:
:b43: at B13 instead would have saved you of some troube later in the game.

Or even first atari at c19?

Author:  Bill Spight [ Tue Aug 14, 2018 2:46 am ]
Post subject:  Re: More Enterprising?

BlindGroup wrote:
The good news is that I seem to be playing even with the sandbaggers at my current level. This guy should have given me a several stones based on his rank history. Ah, IGS...

I'd also be very interested to know about moves 47-49 in the following diagram. Cutting the white stones seems like a good strategic move, but was it too early?

Click Here To Show Diagram Code
[go]$$Wcm46
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . X O . O X . X X . . . . . . . . . . |
$$ | . . X O . X 1 . O X . . . X . O O . . |
$$ | . X X O . 2 O . O , X . . . . X . O . |
$$ | . X O O O 3 4 . . . . . . . . . . . . |
$$ | . . X . . . 5 . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . X . X . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . X . X . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . O . O . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . , . . . . . X O O . |
$$ | . . . . . . . . . . . . . X . X X O . |
$$ | . . . . . . . . . . . . . . . . . X . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]

(I renumbered and added :w50:.)
My concern with the push and cut is that White might atari at :w50: and throw away the four stones to build a wall.

But after :w46: White is very unlikely to do that, since it pretty much amounts to giving up one play. So psychologically this seem like the perfect time to push and cut. ;)

Edit: Objectively, Black has a bigger worry than the sacrifice, I guess.

Click Here To Show Diagram Code
[go]$$Wcm46 Net
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . X O . O X . X X . . . . . . . . . . |
$$ | . . X O . X 1 . O X . . . X . O O . . |
$$ | . B X O . 2 O . O , X . . . . X . O . |
$$ | . X O O O 3 4 . . . . . . . . . . . . |
$$ | . . X . . . . 7 . . . . . . O . O . . |
$$ | . b a . 5 . . . . . . . . . . . . . . |
$$ | . . 6 . . . . . . . . . . . X . X . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . X . X . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . O . O . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . , . . . . . X O O . |
$$ | . . . . . . . . . . . . . X . X X O . |
$$ | . . . . . . . . . . . . . . . . . X . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ +---------------------------------------+[/go]


White can play :w50:, threatening to cut the Black corner off from the left side, for instance with the clamp at "a". Then after Black responds, :w52: captures :b49: in a net.

This illustrates one reason that "b" was better than :bc:.

Author:  bernds [ Tue Aug 14, 2018 6:08 am ]
Post subject:  Re: More Enterprising?

There are things to like in this game - double approaches and such. It's good to experiment with stuff like this to see how it works out.

:b17: feels like too much investment in that formation. One of the 3-3 points to take away White's base would be the natural attacking move.

At :b33: :
Click Here To Show Diagram Code
[go]$$B
$$ +---------------------------------------+
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . 3 . . . . . . . . . . . . . . |
$$ | . . X O . X 2 . 1 . . . . X . O O . . |
$$ | . . X O . . O . . , X . . . . X . O . |
$$ | . . . . O . . . . . . . . . . . . . . |
$$ | . . X . . . . . . . . . . . O . O . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . X . X . . |[/go]
You could consider the :b1: - :w2: combination here, after which White is narrow. You still have the aji of :b3: later, threatening to connect to either side.

:b57: may be the wrong time to tenuki.

At :b63: the answer isn't to move more slowly. Just play a one-space jump at H11.

:b67: is self-destructive. C19 comes to mind. :b69: is a clear mistake even locally, much too inefficient a connection. Consider E8 or G9 if you are worried about cuts.

At :b79:, you're building a fairly narrow area. What are you expecting from this wall you want to build? I suspect the 3-3 point is bigger than the center moves. Once you sacrifice three stones it's not even clear the whole operation gained you anything.

:b99: makes that shape again. Together with 101 you've gained maybe six to eight points from two moves? Connecting in the bottom right is larger because it involves life & death.

Page 1 of 1 All times are UTC - 8 hours [ DST ]
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/