kanishka/counterfactual_babylm_aann_indef_articles_with_pl_nouns_removal

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Black continues at A, B or C to handle the situation.
White has a very thin shape.
So now we've seen that this is a bad move for white.
How about approaching from [this] side?
This one?
Yes.
Yes!
White can also approach from here.
Black answers normally.
But now this is a very big point.
And this is the reason why Lee Changho chooses to play [this move].
Ah.
He doesn't want to get under pressure as white.
Right.
So let's maybe first have a look what happens when black [doesn't] play like this, but plays [here], this is the normal move..
It's also a possibility, however, it gives white the chance to choose between the normal joseki - playing at [A] - and approaching the corner at [B].
This would be normal but now white can also play [here] to strengthen his own group in the lower left.
And to attack the black group.
So this would be a nice move.
So that's why black [doesn't] play here.
He doesn't want to give white the chance to play [here].
So black attacks, himself, immediately.
And this also puts pressure on white's group right?
Right!
Black has two ways to answer to this invasion, which is the only move for white.
In this situation, this is a nice move.
Oh!
We have not seen this one before, right?
Right.
So white needs to link up.
And black will play on top.
So black also links up.
And black seems to gain a lot of thickness on the outside.
After black makes this thickness, maybe white should go out?
Right.
White needs to go out here.
And these are good moves because if white omits [this] move.. .. then black will play this move.
Ah, and it will become sente aswell.
Because white still needs to live.
Yes, white's group doesn't have two eyes yet.
Also, black gets major influence here.
It's too good for black.
So instead of going up here, which was one possibility, black can also choose to play [here]..
Black needs to have a stone at [A] and at [B], but the stone at [A] is crucial because there will be a ladder.
And if black has all these stones, then [this] will become a very powerful move.
Black can cut here and then link up on the 1st line.
And white can not capture the [triangle] stone, because the ladder will be good for black because of the stone at [A].
How about when black does not have these 2 stones in place..
When black [then] will play this move.. .. white can link up his stones.
[This] ofcourse is not a good move.
It's very ugly shape.
And white will be in trouble.
But instead of this, white sacrifices one stone.
And connects underneath.
Since white didn't have big territory in this area anyway, black didn't gain much in these exchanges.
Let's see another overall board position.
Here white has nice shape on the lower side.
[This], in this case, is an excellent move to expand white's framework.
After black calmly answers.. ..he can later aim at this point.
Which is the weak point of white's shape.
Instead of calmly answering, if black plays tenuki, white can play [here].
This is the sente move that white can use in a lot of situations.
Black has to respond and now white made himself a little bit stronger in the area.
White also has a move available which is [gote].
This move was [sente], but when white will play here it is [gote].
However, it has a better follow-up.
So black will not answer this move but afterwards white can take away all the territory of black in the corner.
And gain a lot of thickness on the outside.
Black will have to live very small.
So when you're white and you play [this keima], it has some benefits but also some demerits.
Because it is a [gote move].
Let's have a look at another position.
White can also approach from this side, instead of playing this keima.
And this is also a good move to make the lower side more solid.
Especially when the white shape in the lower side is good.
Playing like [this] will make the white territory solid.
So this is a mistake by black.
White is happy.
Instead black can consider just playing [here].
This is a move that we've seen before and it's quite simple but effective.
After this black can take sente and he can flatten white.
Regarding the joseki in the lower left corner, this is a [vital point] to reduce white's shape.
This is standard way to make shape for black, we've also seen this before.
Now let's finish with a kind of fun move.
Let's have a look at this one.
A tricky move!
Yes.
The idea is ofcourse that when black extends here, white can cut.
He was dreaming of this!
Yea.
This is beautiful for white.
So instead black can try to capture the white stone.
This looks like a very natural move.
But in fact it's not that great.
White can cross-cut here!
And he can capture the stone and come back on the lower side.
In this case white got something on both sides.
And he is solid.
So white's trick move was successful.
So how about instead of pulling back [here], why not capture this stone?

Black continues at A, B or C to handle the situation.

White has a very thin shape.

So now we've seen that this is a bad move for white.

How about approaching from [this] side?

This one?

Yes.

Yes!

White can also approach from here.

Black answers normally.

But now this is a very big point.

And this is the reason why Lee Changho chooses to play [this move].

Ah.

He doesn't want to get under pressure as white.

Right.

So let's maybe first have a look what happens when black [doesn't] play like this, but plays [here], this is the normal move..

It's also a possibility, however, it gives white the chance to choose between the normal joseki - playing at [A] - and approaching the corner at [B].

This would be normal but now white can also play [here] to strengthen his own group in the lower left.

And to attack the black group.

So this would be a nice move.

So that's why black [doesn't] play here.

He doesn't want to give white the chance to play [here].

So black attacks, himself, immediately.

And this also puts pressure on white's group right?

Right!

Black has two ways to answer to this invasion, which is the only move for white.

In this situation, this is a nice move.

Oh!

We have not seen this one before, right?

Right.

So white needs to link up.

And black will play on top.

So black also links up.

And black seems to gain a lot of thickness on the outside.

After black makes this thickness, maybe white should go out?

Right.

White needs to go out here.

And these are good moves because if white omits [this] move.. .. then black will play this move.

Ah, and it will become sente aswell.

Because white still needs to live.

Yes, white's group doesn't have two eyes yet.

Also, black gets major influence here.

It's too good for black.

So instead of going up here, which was one possibility, black can also choose to play [here]..

Black needs to have a stone at [A] and at [B], but the stone at [A] is crucial because there will be a ladder.

And if black has all these stones, then [this] will become a very powerful move.

Black can cut here and then link up on the 1st line.

And white can not capture the [triangle] stone, because the ladder will be good for black because of the stone at [A].

How about when black does not have these 2 stones in place..

When black [then] will play this move.. .. white can link up his stones.

[This] ofcourse is not a good move.

It's very ugly shape.

And white will be in trouble.

But instead of this, white sacrifices one stone.

And connects underneath.

Since white didn't have big territory in this area anyway, black didn't gain much in these exchanges.

Let's see another overall board position.

Here white has nice shape on the lower side.

[This], in this case, is an excellent move to expand white's framework.

After black calmly answers.. ..he can later aim at this point.

Which is the weak point of white's shape.

Instead of calmly answering, if black plays tenuki, white can play [here].

This is the sente move that white can use in a lot of situations.

Black has to respond and now white made himself a little bit stronger in the area.

White also has a move available which is [gote].

This move was [sente], but when white will play here it is [gote].

However, it has a better follow-up.

So black will not answer this move but afterwards white can take away all the territory of black in the corner.

And gain a lot of thickness on the outside.

Black will have to live very small.

So when you're white and you play [this keima], it has some benefits but also some demerits.

Because it is a [gote move].

Let's have a look at another position.

White can also approach from this side, instead of playing this keima.

And this is also a good move to make the lower side more solid.

Especially when the white shape in the lower side is good.

Playing like [this] will make the white territory solid.

So this is a mistake by black.

White is happy.

Instead black can consider just playing [here].

This is a move that we've seen before and it's quite simple but effective.

After this black can take sente and he can flatten white.

Regarding the joseki in the lower left corner, this is a [vital point] to reduce white's shape.

This is standard way to make shape for black, we've also seen this before.

Now let's finish with a kind of fun move.

Let's have a look at this one.

A tricky move!

Yes.

The idea is ofcourse that when black extends here, white can cut.

He was dreaming of this!

Yea.

This is beautiful for white.

So instead black can try to capture the white stone.

This looks like a very natural move.

But in fact it's not that great.

White can cross-cut here!

And he can capture the stone and come back on the lower side.

In this case white got something on both sides.

And he is solid.

So white's trick move was successful.

So how about instead of pulling back [here], why not capture this stone?