Capturing on a large scale

Written by alejo on August 2nd, 2007

To capture on a large scale means to limit a group’s development or eyespace till he dies but from the distance.

On the side we have a sample. Black B stone hasn’t got enough space to develop and get eyespace, it’s very difficult (if not impossible) to escape from that white moyo; so, in fact, this stone is dead, though he has 4 liberties left.

This is a very easy sample to see and to apply to real games, but usually black won’t leave B lonely on the side and let you play A. He is going to try to escape or create eyespace.

The important point of this technique is that it can be applied to lots of games from all levels, from the real beginners to pros. The difficulty this technique has relies on the “when?” and realising it before your opponent does.

This easy sample may make you believe this technique is easy to use and to apply on real games. Here I’ll explain you what has happened me during the last games and I’ll show you another sample of a real-world situation.

Recently I’ve found myself playing a few complicated games, basically due to my lack of skills on fuseki… which leads me to this incredible fighting situations in the center of the board. It’s an all-in game. If I kill, I win; if he lives, he wins.

This is one sample of them, as you can see, there is a white dead group on the upper side, and a black group about to die in the center… or not??

If you were white what would you have done?

I guess most of you saw the point at H11. Black group dies. Making a rough estimation, you are back by around 80 points.

The game ended up with black resigning. You have dream BIG. Now, go back to the diagram and explore it, being a little more greedy, try capturing at a larger scale…. Any idea?

Now black is going to have a hard time trying to save his group. If black doesn’t save his cutting stones at M8, you win. Down here you can see the whole game, with both of us making lots of mistakes. I think black tried too badly to save that group and didn’t care about the M8 (which would have ruined the game for me once again).

[link]

Share

Related posts:

  1. Capturing on a large scale (2nd part)
Permalink

6 Comments to “Capturing on a large scale”

1. Posted by David Whitlock, August 5th, 2007 at 7:29 pm

Thank you! Very informative and thought provoking :-)

2. Posted by Alejo, August 6th, 2007 at 7:59 am

Hi David!!!

I’ve seen the post in your blog ;) I’m glad you like this situation.

I’ve checked your site and realised that what you call “the original position”, doesn’t have the lower groups. These groups are the key for solving the problem.

Hope to see you around here soon ;)

3. Posted by David Whitlock, August 9th, 2007 at 11:13 am

Yeah, I was initially “just” interested in solving what looked like the original problem of the formation in the uppper half. I got over-focused on the top without realizing where you were looking to create tension at the bottom. I really did spend a while thinking about it before following the break! Your solution is very elegant, and makes complete sense…

4. Posted by Alejo, August 9th, 2007 at 11:18 am

Hehehe… thanks ;)

I still think that black could have escaped my trap… if he had managed to save the L8 stones by killing the K7 group… Moreover, I think that just by saving the L8 stones, which would send K11 directly to death, would have given him the victory…
But, as always, it is very easy to say what should have been done “a posteriori”, the difficult part is making with correct timing.

5. Posted by MarcoRosso, August 12th, 2007 at 5:07 am

Who was your opponent?

MarcoRosso

6. Posted by Alejo, August 12th, 2007 at 12:58 pm

Hi MarcoRosso,

I have a secondary account on KGS which I’d like to keep in secret, so that I can play there from the anoymity. If I told you who my opponent was, you could download his games and find my other account.

I’ve checked his archives and it seems like this player has stopped playing on KGS (no games for august) though he could be in vacation or just waiting for the KGS to be restored…

I hope you understand my position

Thanks

Leave a comment

You can use these tags:

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>