Laerthd study journal

Laerthd · Post by **Laerthd** » Wed Dec 14, 2016 6:33 am

Went back to 14k+ recently because of a losing streak. Have little time to play I decided not to review my games each time and this lead to bad play. So the next few post will be reviews of my lost games.

*Fixed the sgf tag. Apparently there was 'mode=view&' added to the url and it didn't like it.

skydyr · Post by **skydyr** » Wed Dec 14, 2016 8:26 am

Here are some comments on the first game:

skydyr · Post by **skydyr** » Wed Dec 14, 2016 10:03 am

Some on the second:

skydyr · Post by **skydyr** » Wed Dec 14, 2016 11:05 am

And the third one:

Laerthd · Post by **Laerthd** » Wed Dec 14, 2016 2:27 pm

Thanks a lot for the review Skydyr.
I'll take the rest of the week to finish my other 3 reviews and try to digest your comments. I greatly appreciate your comments, it shows how skewed is my evaluation of a position currently.

Also, I have a question about reviews. I've seen your last game (which looked really weird to me!) in your study journal and I notice that you put much less comments and variations. I suppose part of it is because being higher level than I am, you have fewer basic things to note during your game. But apart from that, is it just a personal preference to keep the review this way or is there a merit to concentrating more on the main line?

skydyr · Post by **skydyr** » Wed Dec 14, 2016 3:39 pm

Laerthd wrote:Also, I have a question about reviews. I've seen your last game (which looked really weird to me!) in your study journal and I notice that you put much less comments and variations. I suppose part of it is because being higher level than I am, you have fewer basic things to note during your game. But apart from that, is it just a personal preference to keep the review this way or is there a merit to concentrating more on the main line?

Well, if I'm reviewing my own game, and I won pretty convincingly, I usually don't have a lot of mistakes that I can find at my level. Many things I might comment on in a weaker players game I avoid in my own, or don't feel them worth commenting on. I mean, I make comments in my own games for myself primarily, so generally I'd try and target them at my own level. I also didn't really spend a long time going through it, so there wasn't a lot to say. Had I spent more than 5-10 minutes, I would have had more, I imagine.

Obviously, the main line was what was actually played, so commenting a lot on other lines is not that helpful, other than to say play this way or that way. If there's a question about a situation, you want to look at it until it's resolved to your satisfaction, but there's no point in going into a 30 or 40 move variation to see if X would work, when you've only ever read, say, 5 moves deep in a game. Indeed, sometimes that variation will work, but you'll get the wrong lesson from it because in most cases it won't. It's also harder to say that the variation contains only correct moves the deeper you get, and if it doesn't what's the point?

ez4u · Post by **ez4u** » Thu Dec 15, 2016 1:41 am

In your note on move 4 in the third game you wrote that josekipedia recommends the 2-space jump over the 1-space jump. This is not true for the pincer against the approach to the 4-4 point. Did you put the wrong position into josekipedia perhaps, confusing it with the pincer against the approach to the 3-4 stone? The 2-space jump is one of the major lines there.

Laerthd · Post by **Laerthd** » Thu Dec 15, 2016 5:07 am

Hi ez4u,
Good catch, it seems that I entered the wrong position. With the correct position entered, josekipedia mention that the 2 space jump leaves a weakness (but is still playable).

ez4u · Post by **ez4u** » Thu Dec 15, 2016 8:03 am

Laerthd wrote:Hi ez4u,
Good catch, it seems that I entered the wrong position. With the correct position entered, josekipedia mention that the 2 space jump leaves a weakness (but is still playable).

Basically be skeptical of what you see in josekipedia. In my database I have 5,700 examples of the 2-space high pincer with the 4-4 stone. The number of cases where the pincered player uses the 2-space jump? Five! Of those five only two are professional games. That compares to 995 examples of the 1-space jump. Of course YMMV! :study:

Laerthd · Post by **Laerthd** » Wed Jan 25, 2017 9:19 am

It's been a long time, time to update my study journal!

ez4u, I know I should be critical of what I see but I still like the explanation in josekipedia. Probably that looking at a game database and study the variation would be more beneficial but at my level I appreciate a simple explanation and I don't really have the time. But you're right, I should at least ask myself the reason behind each move on josekipedia to check that it make sense to me.

Now for the review part!

I am still at 13k and cannot break through it but I am pleased with my last games. Here is the latest with my review. I lost by 7.5 with komi of -5.5 against a 12k.

I think the reasons I lost is:

I still need improvement in my shapes. I am pleased that no group of mine died but I was inefficient in making them live

I let white develop the bottom side by choosing the wrong direction at move 87
Starting February 13, I'll try to post at least a commented game per week.

skydyr · Post by **skydyr** » Wed Jan 25, 2017 11:58 am

some comments:

Letting white cut off the top group is a key point that needed to be avoided.

ez4u · Post by **ez4u** » Wed Jan 25, 2017 7:47 pm

In the game the exchange of 98 for 99 (1 and 2 below) creates an interesting position at the top. In fact Black has just made a mistake and White can kill the upper side group. The question is how? In the game White continued with 100 and Black replied with 101 at 3 and 4 as shown below. It may seem like White can kill with 5 (or at least make ko) but this is not the case. White is not strong enough here to pull that off.

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

Black can exploit the weakness of White's group at the top to live here. After :b10:

below Black is threatening to kill White's group with the atari at N19. White has to play there so Black has time to capture at K18 and live.

Click Here To Show Diagram Code: [go]$$Wc $$ --------------------------------------- $$ | . . . . . . . . 2 1 0 X . O . O . . . | $$ | . . . . . O X X 3 . X O O . O O X . . | $$ | . X O O . . O X . X X X O O X X . . . | $$ | . X X O . O . O X 8 O O O X O , X . . | $$ | . . . X O . . O 4 O 9 X X X X . . . . | $$ | . X X O . . . 7 5 X X . . . . . . . . | $$ | . X O . O . . . 6 . . . . . . . . . . | $$ | . . O O . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O . . . . , . . X X . , X . . | $$ | . . X X . . . . . . . . . O X . . X . | $$ | . . . . . X . . . . . . . O . X X O . | $$ | . . . . . . . . . . . . . . . O O O . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . O X . O . . . . . . . O O O . . . | $$ | . . O , . . . . . , . . O X X O . . . | $$ | . . . O . O . . . . O O X . . X O . . | $$ | . . . . . . . . . . . X . X . X O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Going back to the situation after 99, how then should White kill Black? There are actually two ways. The simplest way is 3 below. This reduces Black's largest possible space at the top to a bulky five. At the same time it makes it impossible for Black to cut off White's top group and then connect at "a" in sente. The other possibility is the throw-in at "a". Now "b" and "c" are miai, Black needs both to live.

Click Here To Show Diagram Code: [go]$$W $$ --------------------------------------- $$ | . . . . . . . . . b a X . O . O . . . | $$ | . . . . . O X X c . X O O . O O X . . | $$ | . X O O . . O X . X X X O O X X . . . | $$ | . X X O . O . O X 3 O O O X O , X . . | $$ | . . . X O . . O . 1 . X X X X . . . . | $$ | . X X O . . . . . X 2 . . . . . . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . . O O . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X O O . . . . , . . X X . , X . . | $$ | . . X X . . . . . . . . . O X . . X . | $$ | . . . . . X . . . . . . . O . X X O . | $$ | . . . . . . . . . . . . . . . O O O . | $$ | . . X X . . . . . . . . . . . . . . . | $$ | . . O X . O . . . . . . . O O O . . . | $$ | . . O , . . . . . , . . O X X O . . . | $$ | . . . O . O . . . . O O X . . X O . . | $$ | . . . . . . . . . . . X . X . X O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Laerthd · Post by **Laerthd** » Mon Feb 20, 2017 2:16 pm

Wow, thank you for the reply ez4u! I would never find that alone, this is a cool serie of move.
So in the end, I was lucky in this game but I need to improve my reading.

Lately I've been winning quite a lot on fox weiqi so I guess I started to understand something new. Althought often my opponent decide to approach my corner on move 2 so it creates weird games.

For the review of the week, here is a IGS game I lost recently against a 10k. I think I know why I lost:

I played so many useless moves

I missread twice and did not realise the danger of certain moves (49 & 189)
So, here is the game. Comment welcome

Laerthd · Post by **Laerthd** » Mon Jul 03, 2017 1:37 pm

It has been such a long time since my last post in this journal!
During this time I continued to play games but was to busy to review them. Guess what? it doesn't do much good to your game to play without thinking. So I'll try to review consistently from now on.
Here is my last game I played on KGS. I will try to spend a bit more time improving during summer so I want to find my weakest spot. If anyone sees it clearly I would be glad to hear it.

EdLee · Post by **EdLee** » Mon Jul 03, 2017 2:28 pm

Hi Laerthd,

Welcome back.

:b9:

No problem, certainly not at these levels.

Your big and important mistakes come later, not here.

:b11:

This block is tricky; requires some reading and planning.
The solid connect Q15 is simple.

:b17:

P18 is huge. ^(*)

:b19:

Right idea, but bad shape. P18. ^(*)

:b21:

L17 or K17 to attack is also big.
( One meaning of :b17:

at P18. )

R8 starts to make a base and eyeshape for yourself,
threatens to link up with R4, and deprives W of a base.

:b25:

The idea of :b23:

is the outside (e.g. P7 extend, or P6 hane),
not to fall behind on the inside. This :b25:

contradicts :b23:

.

The game move is natural and better. See :w28:

next. ^(*)

:w28:

What if W cuts R3 ? ^(*)

_____________
^(*) More important than :b9:

.

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