The mistakes I make

EdLee · Post by **EdLee** » Wed Oct 04, 2017 5:53 pm

Thanks, Bill.

EdLee · Post by **EdLee** » Wed Oct 04, 2017 11:44 pm

Hi mongus,

:w14:

The top left is vulnerable at 3-3,

Maybe this is splitting hairs about semantics, but I don't consider 3-3 "vulnerable" here.
It is open -- B can jump in at 3-3, but B has to pay for it!
In other words, W will get something out of this trade.

Maybe others disagree, or have other ways to view it.
I don't consider 3-3 here "weak"...
I also don't see 4-4 as "weak" on an empty board --
there's a big difference between open and weak.

EdLee · Post by **EdLee** » Thu Oct 05, 2017 3:11 am

Variation.
( In your second :b45:

variation ( :b45:

at F15 ), the reply :w46:

, connect at E14, is wrong. )

I don't see how I could kill those stones by playing at G15 which would allow black to cut at E14 which would be pretty devastating for me?

Would it ?

Uberdude · Post by **Uberdude** » Thu Oct 05, 2017 5:09 am

EdLee wrote:
The top left is vulnerable at 3-3,
Maybe this is splitting hairs about semantics, but I don't consider 3-3 "vulnerable" here.
It is open -- B can jump in at 3-3, but B has to pay for it!<snip>

I think there is a difference saying a stone or group is weak overall (as mongus did for top 2 white corners, definitely wrong), and that there is a weakness somewhere. Likewise saying a group is vulnerable versus has a vulnerability. So I wouldn't disagree much with saying the top left is vulnerable at 3-3, though I probably wouldn't choose to phrase it like that. So a lone 4-4 isn't weak (unless of course there is some monster thickness of opponent nearby) but it does have a weakness at 3-3 in that the opponent can play there to take the corner. I seem to recall Yilun Yang phrases it much like this in his Fundamental Principles book.

mongus · Post by **mongus** » Thu Oct 05, 2017 1:21 pm

EdLee wrote:Would it ?

You are absolutely right. I've just sat here for the past 5 minutes trying to see what variations I was going through that made me think I couldn't play this, but I can't see it now...

Thanks Bill. I wish I could get these reviews before I played the game!

mongus · Post by **mongus** » Fri Dec 22, 2017 5:04 pm

Another game. This time a victory. I made some embarrassing mistakes, but I think by concentrating on playing the largest move rather than just following my opponent around I was able to make up for them.

I really do need to work on my reading though..

dfan · Post by **dfan** » Sat Dec 23, 2017 6:45 am

Some thoughts on that upper left:

I would play :b8:

at D15, taking liberties away from White's two stones.

Having played :b8:

at C15,

at B16 is bad shape (empty triangle). Don't you wish your C15 stone was at D15 now? I would still play :b10:

at D15.

For :b12:

I would still play D15.

You need to remove D14 from your vocabulary entirely. This kosumi is the sort of move you make reluctantly when you're escaping and need to make a strong connection. It has no place here. D15 is better in every way; it sketches out more territory, it takes away liberties from White's two stones, and it reaches out to F17..

After that I like the fact that you didn't freak out when White invaded on the left, and were willing to let him live small in exchange for massive thickness. Missing the L&D issues isn't as big a deal.

Bill Spight · Post by **Bill Spight** » Sat Dec 23, 2017 11:43 am

A few comments. I am in agreement with dfan.

mongus · Post by **mongus** » Sun Dec 24, 2017 2:29 am

Thanks for the comments.I think the general gist I get from them is I could have been a bit more aggressive and put a bit more pressure on my opponent. Also it seems I often fail to see what the biggest point on the board actually is.

I tried to play a few games last night bearing this in mind and just got completely wiped out. No point posting them here - my mistakes were too obvious. I need to improve my reading skills at the same time.

mongus · Post by **mongus** » Sat Jan 27, 2018 5:48 am

Another game. This time I don't really think I made any major mistakes, but I think through a series of playing small moves I just lost the vital points, primarily in the opening.

I do need to focus on my opening more..

EdLee · Post by **EdLee** » Sat Jan 27, 2018 10:57 am

yes on

var.

var: take Q4 yourself first, instead of R5.

:b53:

C12.

small, slow ( not the first ; quite a few small moves from both sides before this ).

mongus · Post by **mongus** » Sat Jan 27, 2018 3:58 pm

Thankyou. I hadn't thought of :b53:

C12. Yes it would have saved that rather painful attack that came there later on. So it seems in this game I neglected the Corner, Sides, Centre rule in a number of places. I will make an effort to keep this in mind in my next few games.

Bill Spight · Post by **Bill Spight** » Sat Jan 27, 2018 5:47 pm

K-13?

Edit: :b53:

G-12?

General comment. Neither player played a dynamic game.

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The mistakes I make

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