Kirby's Study Journal

Bki · Post by **Bki** » Tue Oct 29, 2019 2:27 pm

Kirby wrote:Seems that the biggest problem was with this atari:
$$B
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$$ | . . . . X . . . . . . . . . . . . . . |
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$$ | . . . . . . . . . . . . . W X O . . . |
$$ | . . . X . . . . . , . X . . O X X . . |
$$ | . . . . . . . . . . . . . . O . . . . |
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$$ ---------------------------------------
Click Here To Show Diagram Code
[go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . O , . . . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . W X O . . . | $$ | . . . X . . . . . , . X . . O X X . . | $$ | . . . . . . . . . . . . . . O . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

My immediate thinking (and what I remember from studying such positions a bit, but I wasn't exhaustive and don't remember everything) on this move is that it's only really good with the low 1-space pincer, since then the hanging connection is kind of sente against the pincer (and a bit later the S5 jump tesuji is more effective).

In this position my instinct would be the one-point-jump attach against the pincer. I've read that the AI doesn't like that and indeed prefer the descent on the 4-5 point, but I'm not confident about following it up properly (especially since the variations starting from this cut already tends to be complicated).

Kirby · Post by **Kirby** » Tue Oct 29, 2019 6:40 pm

Gomoto wrote:I like to tenuki with the two space high pincer, it is not very sharp

Thanks - I think I played this simply too fast.

SoDesuNe wrote:
Kirby wrote:But both bots seem to suggest this:

$$B
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$$ | . . . . X . . . . . . . . . . . . . . |
$$ | . . O , . . . . . , . . . . . O . . . |
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$$ | . . . . . . . . . . . . . . X O W . . |
$$ | . . . X . . . . . , . X a . O X X . . |
$$ | . . . . . . . . . . . . . . O . . . . |
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$$ ---------------------------------------
Click Here To Show Diagram Code
[go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . X . . . . . . . . . . . . . . | $$ | . . O , . . . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . X O W . . | $$ | . . . X . . . . . , . X a . O X X . . | $$ | . . . . . . . . . . . . . . O . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]
New AI-joseki as far as I know. 'a' was the old joseki move if I'm not mistaken. The marked white stone leads to a lot of complicated fighting ^^

You seem correct. I think I was confused. My instinct is off, I guess.

Bki wrote: My immediate thinking (and what I remember from studying such positions a bit, but I wasn't exhaustive and don't remember everything) on this move is that it's only really good with the low 1-space pincer, since then the hanging connection is kind of sente against the pincer (and a bit later the S5 jump tesuji is more effective).

In this position my instinct would be the one-point-jump attach against the pincer. I've read that the AI doesn't like that and indeed prefer the descent on the 4-5 point, but I'm not confident about following it up properly (especially since the variations starting from this cut already tends to be complicated).

I think you are right.

Kirby · Post by **Kirby** » Tue Oct 29, 2019 6:46 pm

Today's AYD game:

I won the game by resignation, but there was a variation I was afraid of, which is this:

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

Either way, before her invasion on the bottom, I felt behind. It seemed that I might have a chance if I could kill the shape on the bottom.

I guess I felt bad after the invasion on the right.. Maybe I should have answered this one?

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X X . O . . . . . . . X . X . . . | $$ | . . O X . X X . . , . . . . . , X . . | $$ | . . O O . O . . . . . . . . . O O . . | $$ | . . O X X O X . . . . . . . . . . . . | $$ | . . . O O X . . . . . . . . . . . . . | $$ | . . O . O . . . . . . . . . . . . . . | $$ | . . X X O . O . . . . . . . . . O . . | $$ | . . . , X X X . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . B . . | $$ | . . X . . . . . . . . . . . X . . . . | $$ | . . . . . . . . . . . . . . X O . . . | $$ | . O . O . . . . . . . . . O O X X . . | $$ | . . . . O . . . . . . . . . . O X . . | $$ | . . . X . . . . . , . . . . . O X . . | $$ | . . . . . O . . . . . . . . . O X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Not really sure - Inseong's review is soon, and I'll also check an AI

Kirby · Post by **Kirby** » Tue Oct 29, 2019 7:00 pm

Looked at the game... Yeah, pretty much I was losing the whole time. So lots of areas to improve. I guess the lesson is to play more like my opponent this game :-S

In particular, I think I still need to study the top left joseki more. It's come up too many times - even at the US Go Congress.

This one:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X X . O . . . . . . . . . . . . . | $$ | . . O X . . . . . , . . . . . , . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . O X X . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . |[/go]

Kirby · Post by **Kirby** » Tue Nov 05, 2019 6:39 pm

I played another AYD game today. Here it is:

Kirby · Post by **Kirby** » Tue Nov 05, 2019 6:40 pm

At least one thought that comes to mind is that my opponent might have considered this:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . O O O . . . . . | $$ | . . . . . . . . . . X O X . . O O . . | $$ | . . . O . . . . . , . X . W X X X . . | $$ | . . . . . . . . . . . . X O . . . . . | $$ | . . O . . . . . . O X X . X O . . . . | $$ | . . . . . . . . . X . . X X O . . . . | $$ | . . . . . . . . X . X X O X O O . . . | $$ | . . . . . . . . . . X O O O . O X X . | $$ | . . . , . . . . . , O X . O O X O O . | $$ | . . . . . . . . . . . X . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . X . | $$ | . . . O . . . . . , . . . . X , X . . | $$ | . . . . . X . . . . X . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

instead of this:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . O O O . . . . . | $$ | . . . . . . . . . . X O X . . O O . . | $$ | . . . O . . . . . , . X . . X X X . . | $$ | . . . . . . . . . . . . X O . . . . . | $$ | . . O . . . . . . O X X . X O . . . . | $$ | . . . . . . . . . X . . X X O . . . . | $$ | . . . . . . . . X . X X O X O O . W . | $$ | . . . . . . . . . . X O O O . O X X . | $$ | . . . , . . . . . , O X . O O X O O . | $$ | . . . . . . . . . . . X . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . X . | $$ | . . . O . . . . . , . . . . X , X . . | $$ | . . . . . X . . . . X . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Kirby · Post by **Kirby** » Tue Nov 05, 2019 6:41 pm

I also felt a little relieved with this move:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . O O O . . . . . | $$ | . . . . . . . . . . X O X . . O O . . | $$ | . . . O . . . . . , . X . . X X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . O . . W . . . . . . | $$ | . . . . . . . . . X O O . X . . . . . | $$ | . . . . . . . . X . X . . X O O . . . | $$ | . . . . . . . . . . X O O . . O X X . | $$ | . . . , . . . . . , O X . O O X O O . | $$ | . . . . . . . . . . . X . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . X . | $$ | . . . O . . . . . , . . . . X , X . . | $$ | . . . . . X . . . . X . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

If white is solid, the result isn't clear to me:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . O O O . . . . . | $$ | . . . . . . . . . . X O X . . O O . . | $$ | . . . O . . . . . , . X . . X X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . O . . . . . . . . . | $$ | . . . . . . . . . X O O W X . . . . . | $$ | . . . . . . . . X . X . . X O O . . . | $$ | . . . . . . . . . . X O O . . O X X . | $$ | . . . , . . . . . , O X . O O X O O . | $$ | . . . . . . . . . . . X . . . X X X . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . X . | $$ | . . . O . . . . . , . . . . X , X . . | $$ | . . . . . X . . . . X . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Kirby · Post by **Kirby** » Wed Nov 06, 2019 9:46 am

Lunch break, so trying to get in some games. Has been weird so far. Hard to get a challenge on KGS, so I said it was open to all players.

First game was against 3k, but I think he didn't like that I was thinking so long, so he resigned before 10 moves so that the game wouldn't be recorded.

Here's that game:

So then I started up a new game, since I had time. This time, I was against 4k. Here's the game:

In the second game, he could have killed me, but somehow I lived, so he resigned... But I think black is still way ahead, so I don't think it's necessary to resign, yet.

In the second game, we also haven't played that much, so it's hard to review, but I suppose this is too much:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . X O O O O . . | $$ | . . . X . . . . . , . . . O X X X . . | $$ | . . X . . . . . . . . . . O . . . . . | $$ | . . O O . . . . . . . . . . X X O . . | $$ | . . . . . . . . . . . . . . X O . . . | $$ | . . . . . . . . . . . . . . . X X . . | $$ | . . . . . . . . . . . . . X X O X X . | $$ | . . O , . . . . . X . . . X O O O . . | $$ | . . . . . . . . . . . . . W . . O O . | $$ | . . . . . . . . . . . . . . X O X X . | $$ | . . X . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . . . . . . . X X . . O X . | $$ | . . . X . . . . . , . O O X X X O X . | $$ | . . . . . . . . . . . O . O O X X . . | $$ | . . . . . . . . . . . O . O X . . . . | $$ | . . . . . . . . . . . . O . . . . . . | $$ ---------------------------------------[/go]

I should probably just live passively like this:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . X . . . X . . X O O O O . . | $$ | . . . X . . . . . , . . . O X X X . . | $$ | . . X . . . . . . . . . . O . . . . . | $$ | . . O O . . . . . . . . . . X X O . . | $$ | . . . . . . . . . . . . . . X O . . . | $$ | . . . . . . . . . . . . . . . X X . . | $$ | . . . . . . . . . . . . . X X O X X . | $$ | . . O , . . . . . X . . . X O O O . . | $$ | . . . . . . . . . . . . . . W . O O . | $$ | . . . . . . . . . . . . . . X O X X . | $$ | . . X . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . O O . | $$ | . . . . . . . . . . . . X X . . O X . | $$ | . . . X . . . . . , . O O X X X O X . | $$ | . . . . . . . . . . . O . O O X X . . | $$ | . . . . . . . . . . . O . O X . . . . | $$ | . . . . . . . . . . . . O . . . . . . | $$ ---------------------------------------[/go]

But it's weird with handicap games... If I always play properly, there's a decent chance I'll lose. Or at least it's hard to strategize, because I don't know what my opponent will screw up on if I play proper moves...

But on the other hand, I already overplay. And I don't think handicap games help with that - I want to overplay more, because sometimes it works...

I suppose even games are the best, but it's hard to get an even game sometimes on KGS. If I don't have luck tomorrow, I'll aim for playing on fox.

Kirby · Post by **Kirby** » Thu Nov 07, 2019 10:53 am

Today's game on KGS.

Took a bit longer than expected, so I have to get back to work for now. I'll give my review soon.

Basic gist of the game is that black seemed to be winning, I threatened big area in the center. I think he can still win if he doesn't try to live in there, probably. He tried to live, and died. I almost had a good success in bottom left, but he found a way to win with that one. I feel like I screwed up somehow and probably could have killed it, but I'll take a closer look soon.

Kirby · Post by **Kirby** » Thu Nov 07, 2019 11:30 am

So here's a quick review. Black has two stone handicap, and I felt behind at the start for sure. But I had a little bit of a good feeling when black cut here:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . X . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X , . . . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . B O O . . . | $$ | . . . . . . . . . . . . . O X X O . . | $$ | . . . X . . . . . O . . . O . , O . . | $$ | . . . . . O . . . . . O O X X X X . . | $$ | . . . . . . . . . . . O X . X . . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ ---------------------------------------[/go]

The reason is because white is strong on both sides:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . X . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . W . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X , . . . . . , . . . . . W . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . . . . . X W W . . . | $$ | . . . . . . . . . . . . . W X X W . . | $$ | . . . X . . . . . W . . . W . , W . . | $$ | . . . . . W . . . . . W W X X X X . . | $$ | . . . . . . . . . . . W X . X . . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ ---------------------------------------[/go]

The point of a cut is often to weaken the opponent. But since my groups are both pretty strong, the only one weak is black. So it basically gives me a target.

That's why I felt slightly happy with this cut.

That being said, I think this kind of move was a good choice by black:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . X . . . . . , . . . . . X . B . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X , . . . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O . . . . | $$ | . . . . . . . . . . . . X X . . . . . | $$ | . . . X . . . . . . . O O X O O . . . | $$ | . . . . . . . . . . . . . O X X O . . | $$ | . . . X . . . . . O . . . O . , O . . | $$ | . . . . . O . . . . . O O X X X X . . | $$ | . . . . . . . . . . . O X . X . . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ ---------------------------------------[/go]

It was a bad idea to give me a target, but realizing that, being flexible, and taking points seems good. It was bad to cut probably, but good to take points for black, IMO.

Next notable development was here:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O O X X . . . . . . . . . . . . . | $$ | . . X O X O X . . . . . . X . . . . . | $$ | . O O X O . . . . , . . W . . X . X . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . X . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X , . . . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O . . . . | $$ | . . . . . . . . . . . . B B . . . . . | $$ | . . . X . . . . . . . O O B O O . . . | $$ | . . . . . . . . . . . . . O X X O . . | $$ | . . . X . . . . . O . . . O . , O . . | $$ | . . . . . O . . . . . O O X X X X . . | $$ | . . . . . . . . . . . O X . X . . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ ---------------------------------------[/go]

I'm not sure if it was a good idea, but I'm aiming at the marked target he gave me earlier.

This move by me seems questionable:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O O X X . . . . . . . . . . . . . | $$ | . . X O X O X . . . . . . X . . . . . | $$ | . O O X O . . . . , . . O X . X . X . | $$ | . . . X . . . . . . . . . X . . . . . | $$ | . . X . . . . . . . O . O O X X O . . | $$ | . . . . . . . . . . . . . . O X X . . | $$ | . . . . . . . . . . . . . . O O X . . | $$ | . . . . . . . . . . . . . . O X X . . | $$ | . . X , . . . . . W . . . . . O O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O . . . . | $$ | . . . . . . . . . . . . X X . . . . . | $$ | . . . X . . . . . . . O O X O O . . . | $$ | . . . . . . . . . . . . . O X X O . . | $$ | . . . X . . . . . O . . . O . , O . . | $$ | . . . . . O . . . . . O O X X X X . . | $$ | . . . . . . . . . . . O X . X . . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ ---------------------------------------[/go]

My idea is to lure him in. But I feel like if black just takes points elsewhere, black will probably be still ahead.

I'll check with AI later at home.

But he came in...

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O O X X . . . . . . . . . . . . . | $$ | . . X O X O X . . . . . . X . . . . . | $$ | . O O X O . . . . , . . O X . X . X . | $$ | . . . X . . . . . . . . . X . . . . . | $$ | . . X . . . . . . . O . O O X X O . . | $$ | . . . . . . . . . . . . . . O X X . . | $$ | . . . . . . . . . . . . B . O O X . . | $$ | . . . . . . . . . . . . . . O X X O . | $$ | . . X , . . . . . O . . . . . O O X . | $$ | . . . . . . . . . . . . . . . . X O . | $$ | . . . . . . . . . . . . . . O O X . . | $$ | . . . . . . . . . . . . X X . . . . . | $$ | . . . X . . . . . . . O O X O O . . . | $$ | . . . . . . . . . . . . . O X X O . . | $$ | . . . X . . . . . O . . . O . , O . . | $$ | . . . . . O . . . . . O O X X X X . . | $$ | . . . . . . . . . . . O X . X . . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ ---------------------------------------[/go]

So I guess the bait was successful.

Fast forward a few moves, and I think it's a decent result for me:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O O X X . . . . . . . . . . . . . | $$ | . . X O X O X . . . . . . X . . . . . | $$ | . O O X O . . . . , . . O X . X . X . | $$ | . . . X . . . . . . . . . X . . . . . | $$ | . . X . . . . . . . O . O O X X O . . | $$ | . . . . . . . . O O . . . X O X X . . | $$ | . . . . . . . . . X O . X . O O X . . | $$ | . . . . . . . . . X O X . . O X X O . | $$ | . . X , . . . . . O X O O O . O O X . | $$ | . . . . . . . . . O X X . . . . X O . | $$ | . . . . . . . . . O O X . . O O X . . | $$ | . . . . . . . . . . X X X X . . . . . | $$ | . . . X . . . . O . . O O X O O . . . | $$ | . . . . . . . . O X . . . O X X O . . | $$ | . . . X . . . . . O X . . O . , O . . | $$ | . . . . . O . . . O . O O X X X X . . | $$ | . . . . . . . . . . . O X . X . . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ ---------------------------------------[/go]

So the thing is, when I made that bait earlier, white has a moyo-framework in the middle, but it's not solid territory, yet. So I am not free to do other things if I want to keep that territory.

But after this capture, I'm all solid and stuff, so I feel like I can invade places. So I think it's a success, and I feel good about the game now.

Anyway, the last interesting part to me is the bottom left.

Here:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O O X X . . . . . . . . . . . . . | $$ | . . X O X O X . . . . X X X . . . . . | $$ | . O O X O . . . . , X O O X . X . X . | $$ | . . . X . . . . . . X X O X . . . . . | $$ | . . X . . . . O X . O X O O X X O . . | $$ | . . . . . . . X O O O X O . O X X . . | $$ | . . . . . . . X . X O O . O O O X . . | $$ | . . . . X O O X X X O . O . O X X O . | $$ | . . X , . X X O O O X O O O . O O . O | $$ | . . . . . X . X . O X X . . . . X O . | $$ | . . . . . . X O O O O X . . O O X X . | $$ | . . O O O . O . . O X X X X . O O O X | $$ | . . O X O . O O O X X O O X O O X X . | $$ | . B X X . X . X O X X O O O X X O . . | $$ | . O . X . . O O X O X X O O . , O . . | $$ | . . X . . O O X X O X O O X X X X X . | $$ | . X O O . . . . . O O O X . X . . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ ---------------------------------------[/go]

I played this move, which I think is probaly lame:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O O X X . . . . . . . . . . . . . | $$ | . . X O X O X . . . . X X X . . . . . | $$ | . O O X O . . . . , X O O X . X . X . | $$ | . . . X . . . . . . X X O X . . . . . | $$ | . . X . . . . O X . O X O O X X O . . | $$ | . . . . . . . X O O O X O . O X X . . | $$ | . . . . . . . X . X O O . O O O X . . | $$ | . . . . X O O X X X O . O . O X X O . | $$ | . . X , . X X O O O X O O O . O O . O | $$ | . . . . . X . X . O X X . . . . X O . | $$ | . . . . . . X O O O O X . . O O X X . | $$ | . . O O O . O . . O X X X X . O O O X | $$ | . W O X O . O O O X X O O X O O X X . | $$ | . X X X . X . X O X X O O O X X O . . | $$ | . O . X . . O O X O X X O O . , O . . | $$ | . . X . . O O X X O X O O X X X X X . | $$ | . X O O . . . . . O O O X . X . . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ ---------------------------------------[/go]

Instead, I think it might work for me to play here:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O O X X . . . . . . . . . . . . . | $$ | . . X O X O X . . . . X X X . . . . . | $$ | . O O X O . . . . , X O O X . X . X . | $$ | . . . X . . . . . . X X O X . . . . . | $$ | . . X . . . . O X . O X O O X X O . . | $$ | . . . . . . . X O O O X O . O X X . . | $$ | . . . . . . . X . X O O . O O O X . . | $$ | . . . . X O O X X X O . O . O X X O . | $$ | . . X , . X X O O O X O O O . O O . O | $$ | . . . . . X . X . O X X . . . . X O . | $$ | . . . . . . X O O O O X . . O O X X . | $$ | . . O O O . O . . O X X X X . O O O X | $$ | . . O X O . O O O X X O O X O O X X . | $$ | . X X X . X . X O X X O O O X X O . . | $$ | . O . X . . O O X O X X O O . , O . . | $$ | . W X . . O O X X O X O O X X X X X . | $$ | . X O O . . . . . O O O X . X . . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ ---------------------------------------[/go]

I don't see a way for black to live that way.

Fortunately, this didn't decide the game, but in another game, it could have...

Anyway, that's my rough review. I'll check with AI later.

Kirby · Post by **Kirby** » Mon Nov 11, 2019 10:21 am

It's Monday, so another game at lunch. I worked from home on Friday, so my schedule was screwed up and didn't play a game then. Today, it got really snowy in Ann Arbor. Brrr...

Anyway, I played on KGS automatch, and got paired with otenki from the forum here. He was ranked as 4k?, but I think it's a new account (he's been winning). His profile here says he's EGF 2k, so I was in over my head and had to give 5 stones.

here's the game:

As you can see, I won on a fluke - if he just protects from that hane, I can live on bottom, I think, but not very big - and he has sente. He's definitely winning.

Edit: Original SGF is screwed up, so I took out the comments, and you can see it here:

Kirby · Post by **Kirby** » Mon Nov 11, 2019 10:26 am

Bottom line is, I think if he just answers my threat here:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . O X . . . . | $$ | . . . X . O . . . . . . O X . . . . . | $$ | . . . X . . . . O , . . O X . X . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . O . . X . . . . . , . . . | $$ | . . . . . O . O O X . . . . . . . . . | $$ | . . . . . X O O X . B . . . . . . . . | $$ | . . . . . X O . X . X O . . . . . . . | $$ | . . O . . X O X X O O . . . O . X . . | $$ | . X . X O X O X O X O . X X O . . . . | $$ | . . . X X O X X O X . O . O X X . . . | $$ | . . . . X O X O O X X . . O X . . . . | $$ | . . . X O O O . O O X . X . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

He seems totally fine. I don't know what to do next. I imagine this sequence:

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

Then black has sente, and I have very few points. Marked stones are particularly weak, too. Seems like a hard game for me.

Will go back to work for now - handicap games are hard.

Kirby · Post by **Kirby** » Mon Nov 11, 2019 7:29 pm

I analyzed this game a little bit more when I got home, a little with some version of LZ, and more with KataGo.

A couple of points...

1. I'm still behind when black resigned. However, there is some psychological aspect, because I did gain a bit of ground capturing his stones in the center. According to KataGo, though, I go from something like a 60 point deficit at the beginning of the game to around a 20 point deficit after capturing that center group. So I'm gaining ground with that capture, but the game is far from over.

2. Next, I did some analysis with a komi of something like 62 - made the game around even at the start of the 5 stone game. Then, I analyzed the game from there. Here are some turning points...

Diagram A

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

These two moves, above, by black gave a slight dip. KataGo wants to be more active like this:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . O X . . . . | $$ | . . . X . O . B . . . . O X . . . . . | $$ | . . . X . . . . . , . . O X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . X . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . X . . | $$ | . X . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . , . . . . . X . . . | $$ | . . . . . O . . . . . . . O . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

And this:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . O X . . . . | $$ | . . . X . O . . . . . . O X . . . . . | $$ | . . . X . . . . O , . . O X . X . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . B . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . X . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . X . . | $$ | . X . . . . . . . . . . . . . . . . . | $$ | . . . X . . . . . , . . . . . X . . . | $$ | . . . . . O . . . . . . . O . . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Anyway, slight dip, but somewhat minor.

Next significant swing is due to my mistake. KataGo doesn't like my atari strategy here:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . O X . . . . | $$ | . . . X . O . . . . . . O X . . . . . | $$ | . . . X . . . . O , . . O X . X . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . X . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . X . . | $$ | . X . . O X W . . . . . . . . . . . . | $$ | . . . X X O . . . B . . . O . X . . . | $$ | . . . . . O . . . . . . . O X . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I suppose I'm being impatient. My idea is to make the marked black stone a target, and hopefully the pressure induces more mistakes. KataGo is thinking something along the lines of 'a' or 'b', below:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . O X . . . . | $$ | . . . X . O . . . . . . O X . . . . . | $$ | . . . X . . . . O , . . O X . X . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . X . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . X . . | $$ | . X . . O X . . . . . . . . . . . . . | $$ | . . . X X O . . a X . . . O . X . . . | $$ | . . . . . O . . . b . . . O X . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

That being said, a brief look with LZ seems to show that it's OK with the atari... But maybe the evaluation is different when black is so far ahead. I think I trust LZ more for even games, but KataGo seems like a better model for handicap games, since the points are more relevant.

KataGo didn't really like black's move here:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . O X . . . . | $$ | . . . X . O . . . . . . O X . . . . . | $$ | . . . X . . . . O , . . O X . X . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . a . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . X . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . . . . X O . . . . . . . . . . . . | $$ | . . O . . X O . B . O . . . . . X . . | $$ | . X . . O X O . . . . b . . . . . . . | $$ | . . . X X O . . . X . . . O . X . . . | $$ | . . . . . O . . . . . . . O X . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Preferring moves like 'a' and 'b', and also didn't like this connection:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . O X . . . . | $$ | . . . X . O . . . . . . O X . . . . . | $$ | . . . X . . . . O , . . O X . X . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . X . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . X . . . . . . . . . . . . . | $$ | . . . . . X O . . . . . . . . . . . . | $$ | . . O . . X O B X O O . . . . . X . . | $$ | . X . . O X O X O X . . . . . . . . . | $$ | . . . X X O . X O X . . . O . X . . . | $$ | . . . . . O . C O . . . . O X . . . . | $$ | . . . X . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Preferring instead to drive down the middle to split white at the marked intersection.

On my side, KataGo found this to be a huge mistake:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . O X . . . . | $$ | . . . X . O . . . . . . O X . . . . . | $$ | . . . X . . . . O , . . O X . X . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . X . . . . . , . . . | $$ | . . . . . O X . . . . . . . . . . . . | $$ | . . . . . X O W . . . . . . . . . . . | $$ | . . . . . X O . X . . . . . . . . . . | $$ | . . O . . X O X X O O . . . . . X . . | $$ | . X . . O X O X O X . . X . . . . . . | $$ | . . . X X O X X O X . O . O . X . . . | $$ | . . . . . O . O O X . . . O X . . . . | $$ | . . . X O . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Since it's not really working - I didn't read a way for it to work, after all... I should not play it. Instead, I should cut my losses and just take some bottom territory:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . O X . . . . | $$ | . . . X . O . . . . . . O X . . . . . | $$ | . . . X . . . . O , . . O X . X . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . X . . . . . , . . . | $$ | . . . . . O X . . . . . . . . . . . . | $$ | . . . . . X O . . . . . . . . . . . . | $$ | . . . . . X O . X . . . . . . . . . . | $$ | . . O . . X O X X O O . . . . . X . . | $$ | . X . . O X O X O X . . X . . . . . . | $$ | . . . X X O X X O X . O . O . X . . . | $$ | . . . . . O . O O X . . . O X . . . . | $$ | . . . X O . . . . W . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Somehow, I'm attached to the stones, and want everything - even in a 5-stone handicap game... :-S

In the same fashion, this was another overplay by me:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . O X . . . . | $$ | . . . X . O . . . . . . O X . . . . . | $$ | . . . X . . . . O , . . O X . X . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . O . . X . . . . . , . . . | $$ | . . . . . O . O O X . . . . . . . . . | $$ | . . . . . X O O X . . . . . . . . . . | $$ | . . . . . X O . X . X . . . . . . . . | $$ | . . O . . X O X X O O . . . . . X . . | $$ | . X . X O X O X O X O . X X W . . . . | $$ | . . . X X O X X O X . O . O . X . . . | $$ | . . . . X O X O O X X . . O X . . . . | $$ | . . . X O O O . O O X . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

And I remember what I was thinking at the time... I want to capture the center stones, but a play like this:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . O X . . . . | $$ | . . . X . O . . . . . . O X . . . . . | $$ | . . . X . . . . O , . . O X . X . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . O . . X . . . . . , . . . | $$ | . . . . . O . O O X . . . . . . . . . | $$ | . . . . . X O O X . . . . . . . . . . | $$ | . . . . . X O . X . X W . . . . . . . | $$ | . . O . . X O X X O O . . . . . X . . | $$ | . X . X O X O X O X O . X X . . . . . | $$ | . . . X X O X X O X . O . O . X . . . | $$ | . . . . X O X O O X X . . O X . . . . | $$ | . . . X O O O . O O X . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

And he'll just defend. So I should start a fight with the two stones, and maybe I can get that white stone for free.

I'm OK with that type of reasoning. But what's wrong is that I ignored my own weaknesses. After I cut off the stones, black can bite back:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . O X . . . . | $$ | . . . X . O . . . . . . O X . . . . . | $$ | . . . X . . . . O , . . O X . X . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . O . . X . . . . . , . . . | $$ | . . . . . O . O O X . . . . . . . . . | $$ | . . . . . X O O X . . . . . . . . . . | $$ | . . . . . X O . X . X . . . . . . . . | $$ | . . O . . X O X X O O . . . . . X . . | $$ | . X . X O X O X O X O . X X O . . . . | $$ | . . . X X O X X O X . O . O . X . . . | $$ | . . . . X O X O O X X . . O X . . . . | $$ | . . . X O O O . O O X . B . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

So instead, I had better deal with my own weakness first:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . O X . . . . | $$ | . . . X . O . . . . . . O X . . . . . | $$ | . . . X . . . . O , . . O X . X . . . | $$ | . . . . . . . . . . . . . X . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . O . . X . . . . . , . . . | $$ | . . . . . O . O O X . . . . . . . . . | $$ | . . . . . X O O X . . . . . . . . . . | $$ | . . . . . X O . X . X . . . . . . . . | $$ | . . O . . X O X X O O . . . . . X . . | $$ | . X . X O X O X O X O . X X . . . . . | $$ | . . . X X O X X O X . O . O . X . . . | $$ | . . . . X O X O O X X W . O X . . . . | $$ | . . . X O O O . O O X . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I think this is the gist of the review...

Takeaways for me? I think that it can be highlighted in the following:
* I look for my opponents' weaknesses, yet I'm blind to my own.

There's the saying, the best defense is a good offense. I think it's a good idea, but perhaps it's time for a new mantra.

Kirby · Post by **Kirby** » Tue Nov 12, 2019 7:43 pm

I was snowed in today - a lot of snow hit where I'm living over the past couple of days, so I decided to work from home. I had plans to play a game at lunchtime, but somehow, there was some sort of urgent bug that needed to be fixed for my work. So I focused on that throughout the day, and didn't get time to get a game in. After work, I bought a snowblower, because our driveway is a mess.

Anyway, I *did* have an AYD game today, and it was very fascinating. I felt a lot of pressure throughout the game. Here's the record:

Kirby · Post by **Kirby** » Tue Nov 12, 2019 7:58 pm

Here are a couple of thoughts... Haven't reviewed with an AI, and I've also not had any sort of human review.

Position 1

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O . . . . . . . . . . . . . . . . | $$ | . . . . X W . . . . . . . . . . O . . | $$ | . . . O X O . . . , . . . . X , . . . | $$ | . . . . O X . O . X . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

This *feels* like it could be an overplay. But I can't really tell what the best result for black is. During the game I couldn't either, so I played it.

Position 2

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . O . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . X . . . . . . . . . . . . . . X . . | $$ | X O O . . . . . . . . . . . . . . . . | $$ | . X O O O . . . . . . . . . . . . . . | $$ | X X X X X O . . . . . . . . . . O . . | $$ | . X O O X O . . . , . . . . X , . . . | $$ | . X O X O X . O . X . . . . . X . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . O . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Here, I read for quite some time - I just couldn't find a sequence to kill black. I thought it'd be OK to press black down on the second line. But I still felt annoyed.

The end result felt decent:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O O . . . . . . . . . . . . . . . | $$ | . O X , . . . . . , . . . . . X . . . | $$ | . O X . . . . . . . . . . . . . . . . | $$ | . O X . . . . . . . . . . . . . . . . | $$ | . O . . . . . . . . . . . . . . . . . | $$ | . O X X . . . . . . . . . . . . . . . | $$ | X X O . . . . . . . . . . . . . . . . | $$ | . X O , O . . . . , . . . . . , . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . X X O . . . . . . . . . . . . X . . | $$ | X O O . O . . . . . . . . . . . . . . | $$ | . X O O O X . . . . . . . . . . . . . | $$ | X X X X X O . . . . . . . . . . O . . | $$ | . X O O X O . . . , . . . . X , . . . | $$ | . X O X O X . O . X . . . . . X . . . | $$ | . X O . O . . . . . . . . . . . . . . | $$ | . O . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

My groups were basically alive; black had a weak group in the top left; and I got a decent corner. I felt OK.

Position 3

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O O . . . . . . . . . . . . . . . | $$ | . O X , . . . . . W . . . . . X . . . | $$ | . O X . O . . . . . . . . . . . . . . | $$ | . O X . . . . . . . . . . . . . . . . | $$ | . O . . . . . . . . . . . . . . . . . | $$ | . O X X . X . X . X . . . . . . . . . | $$ | X X O . . . . . . . . . . . . . . . . | $$ | . X O , O . O . O , . . . . . , . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . X X O . . . . . . . . . . . . X . . | $$ | X O O . O . . . . . . . . . . . . . . | $$ | . X O O O X . . . . . . . . . . . . . | $$ | X X X X X . X . . . . . . . . . O . . | $$ | . X O O X . X . . , . . . . X , . . . | $$ | . X O X O X X O . X . . . . . X . . . | $$ | . X O . O O O . . . . . . . . . . . . | $$ | . O . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Not sure, but maybe the marked white move, above, is questionable. I think it could have been worth thinking about putting more pressure and continuing to the center where black's potential was:

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . O O . . . . . . . . . . . . . . . | $$ | . O X , . . . . . , . . . . . X . . . | $$ | . O X . O . . . . . . . . . . . . . . | $$ | . O X . . . . . . . . . . . . . . . . | $$ | . O . . . . . . . . . . . . . . . . . | $$ | . O X X . X . X . X . . . . . . . . . | $$ | X X O . . . . . . . . . . . . . . . . | $$ | . X O , O . O . O , W . . . . , . . . | $$ | . X O . . . . . . . . . . . . . . . . | $$ | . X X O . . . . . . . . . . . . X . . | $$ | X O O . O . . . . . . . . . . . . . . | $$ | . X O O O X . . . . . . . . . . . . . | $$ | X X X X X . X . . . . . . . . . O . . | $$ | . X O O X . X . . , . . . . X , . . . | $$ | . X O X O X X O . X . . . . . X . . . | $$ | . X O . O O O . . . . . . . . . . . . | $$ | . O . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Again, not sure... But It seems important in that it keeps pressure on, while reducing the black right side potential. If the right side isn't big territory, I should be OK given my top left corner territory.

Position 4

Click Here To Show Diagram Code: [go]$$B $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . O O X O . | $$ | . . O O . . . . . . . . . . X O X O . | $$ | . O X , . . . . . O . . . . X X O O . | $$ | . O X . O . . . . . B . . . . . X X . | $$ | . O X . . . . . . . . . . . . X O O X | $$ | . O . . . . . . . . . . . . . . . . . | $$ | . O X X . X . X . X . O . . . O X . . | $$ | X X O . . . . . . . . . . . . . X . . | $$ | . X O , O . O . O , X X . . . , . . . | $$ | . X O . . . . . . . O . . . . . . . . | $$ | . X X O . . . . . . . . . . . . X . . | $$ | X O O . O . . . . . . . . . . . . . . | $$ | . X O O O X . . . . . . . . . . . . . | $$ | X X X X X . X . . . . . . . . . O . . | $$ | . X O O X . X . . , . . . . X , . . . | $$ | . X O X O X X O . X . . . . . X . . . | $$ | . X O . O O O . . . . . . . . . . . . | $$ | . O . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Here was a decision point: do I try to keep alive with my stones, or do I solidify the top as territory? I counted the points, and it seemed that if I live in the bottom right, white's top would be enough to put white ahead.

So I went with that strategy. I feel good about that decision.

---

All in all, I feel OK about this game. My opponent played well, I thought, and I'm proud that I didn't go totally crazy when things got somewhat close, like I usually do.

Life In 19x19

Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal

Re: Kirby's Study Journal