<p>To answer the original question: White's corner is <strong>unconditionally dead</strong>, it cannot be rescued even with White playing first. The points <code>P1</code> and <code>R1</code> are <em>miai</em>, when White takes one of them Black takes the other.</p>

<p>In the actual game White uses the <em>aji</em> left in the corner for some Ko threats, that's all White can get out of the local situation.</p>

CC BY-SA 3.0
2018-03-23T15:52:01.707Z
2018-03-23T15:52:01.707Z
Sir Cornflakes
<p>This is from a game between two high-ranking professionals I saw on TV.  Hopefully I copied it right.</p>

<p>There doesn't quite seem to be enough from after W1.  Let me show you [<a href="https://i.sstatic.net/5Nocs.jpg" rel="nofollow noreferrer">1</a>]:</p>

<pre><code>$$Wc
$$ . . . . . . . . . . |
$$ . . . X . . . . . . |
$$ . O X . X . . . 1 . |
$$ . . . . . . X . X . |
$$ . . . . . . . X X . |
$$ . X . . X X X O X O |
$$ . . . X O O O O O O |
$$ . . . . X . . . X . |
$$ --------------------|
</code></pre>

<p>If Black moves first, perhaps there's not enough from after B2 and W3 ?</p>

<pre><code>$$Wc
$$ . . . . . . . . . . |
$$ . . . X . . . . . . |
$$ . O X . X . . . O . |
$$ . . . . . . X . X . |
$$ . . . . . . . X X . |
$$ . X . 3 X X X O X O |
$$ . . . X O O O O O O |
$$ . . . . X 2 . . X . |
$$ --------------------|
</code></pre>

<p>If White has just a little bit more time, we can put a white stone at A. Not even.</p>

<pre><code>$$c
$$ . . . . . . . . . . |
$$ . . . X . . . . . . |
$$ . O X . X . . . O . |
$$ . . . . . . X . X . |
$$ . . . . . . . X X . |
$$ . X . . X X X O X O |
$$ . . . X O O O O O O |
$$ . . . . X 2 . . X . |
$$ --------------------|
</code></pre>

<p>So what are they thinking?</p>

CC BY-SA 3.0
2018-03-15T12:20:17.847Z
You say a White stone at _A_, but you have not marked _A_; perhaps you mean 2?
PJTraill
CC BY-SA 3.0
2018-03-15T12:39:37.540Z
P.S. If you meant A15, perhaps you should add a `c` to your diagram headers to show the coördinates. It would also be interesting to know what happened next in the game – or was it just a snippet on a random news item? Anyway, like you, I have difficulty understanding what is going on. Maybe 1 makes a ko threat, but I do not know if that is relevant. The entire position (in the linked image) looks fairly complicated.
PJTraill
CC BY-SA 3.0
2018-03-15T15:33:39.360Z
@PJTraill as far as I can tell... White is [dead](https://senseis.xmp.net/?LifeAndDeath).  and maybe it's trying to put in some [aji](https://senseis.xmp.net/?Aji)... would you like me to link you to the video?? [ [here](https://youtu.be/MQo4HoGHVrU?t=1h20m) ]
john mangual
CC BY-SA 3.0
2018-03-15T17:40:08.763Z
It would indeed be worth linking to the video in your question. I see there that the B stone at Q5 was played _after_ W 1. There is also a ko-fight going on at 12x{I,J}, so moves may be ko-threats; after Q5, White connects the ko, so he has ignored a Black threat. At 1:26:40 W apparently resigns during a countdown; this can also mean that previous moves were setting the scene for resignation: see my question [What is looking for a place to resign in go?](https://boardgames.stackexchange.com/questions/35599/what-is-looking-for-a-place-to-resign-in-go) and https://senseis.xmp.net/?HowToResign.
PJTraill
CC BY-SA 3.0
2018-03-15T21:51:58.007Z
Having added coördinates to your diagrams, I realise that I wrote A15 when I meant P1!
PJTraill
CC BY-SA 3.0
2018-03-16T06:31:01.400Z
In the video, Q5 is not present when 1 is played.
aes
CC BY-SA 3.0
2018-03-16T06:41:44.913Z
It looks like 1 threatens Q4 Q5 T5 connecting out to 1.
aes
<go><tsumego>
How does White survive in this corner?
john mangual
# How does White survive in this corner?

(Asked by: username_0 on 2018-03-14)

This is from a game between two high-ranking professionals I saw on TV. Hopefully I copied it right.

There doesn't quite seem to be enough from after W1. Let me show you [[1](https://i.sstatic.net/5Nocs.jpg)]:

```
$$Wc
$$ . . . . . . . . . . |
$$ . . . X . . . . . . |
$$ . O X . X . . . 1 . |
$$ . . . . . . X . X . |
$$ . . . . . . . X X . |
$$ . X . . X X X O X O |
$$ . . . X O O O O O O |
$$ . . . . X . . . X . |
$$ --------------------|

```

If Black moves first, perhaps there's not enough from after B2 and W3 ?

```
$$Wc
$$ . . . . . . . . . . |
$$ . . . X . . . . . . |
$$ . O X . X . . . O . |
$$ . . . . . . X . X . |
$$ . . . . . . . X X . |
$$ . X . 3 X X X O X O |
$$ . . . X O O O O O O |
$$ . . . . X 2 . . X . |
$$ --------------------|

```

If White has just a little bit more time, we can put a white stone at A. Not even.

```
$$c
$$ . . . . . . . . . . |
$$ . . . X . . . . . . |
$$ . O X . X . . . O . |
$$ . . . . . . X . X . |
$$ . . . . . . . X X . |
$$ . X . . X X X O X O |
$$ . . . X O O O O O O |
$$ . . . . X 2 . . X . |
$$ --------------------|

```

So what are they thinking?

**Tags:** go, tsumego

> **Comments:**
> **username_1**: You say a White stone at _A_, but you have not marked _A_; perhaps you mean 2?  
> **username_1**: P.S. If you meant A15, perhaps you should add a `c` to your diagram headers to show the coördinates. It would also be interesting to know what happened next in the game – or was it just a snippet on a random news item? Anyway, like you, I have difficulty understanding what is going on. Maybe 1 makes a ko threat, but I do not know if that is relevant. The entire position (in the linked image) looks fairly complicated.  
> **username_0**: @username_1 as far as I can tell... White is [dead](https://senseis.xmp.net/?LifeAndDeath).  and maybe it's trying to put in some [aji](https://senseis.xmp.net/?Aji)... would you like me to link you to the video?? [ [here](https://youtu.be/MQo4HoGHVrU?t=1h20m) ]  
> **username_1**: It would indeed be worth linking to the video in your question. I see there that the B stone at Q5 was played _after_ W 1. There is also a ko-fight going on at 12x{I,J}, so moves may be ko-threats; after Q5, White connects the ko, so he has ignored a Black threat. At 1:26:40 W apparently resigns during a countdown; this can also mean that previous moves were setting the scene for resignation: see my question [What is looking for a place to resign in go?](https://boardgames.stackexchange.com/questions/35599/what-is-looking-for-a-place-to-resign-in-go) and https://senseis.xmp.net/?HowToResign.  
> **username_1**: Having added coördinates to your diagrams, I realise that I wrote A15 when I meant P1!  
> **username_2**: In the video, Q5 is not present when 1 is played.  
> **username_2**: It looks like 1 threatens Q4 Q5 T5 connecting out to 1.  

---

## 1 answers

### Answer by username_3 on 2018-03-23. Score: 2 | Accepted answer

To answer the original question: White's corner is **unconditionally dead**, it cannot be rescued even with White playing first. The points `P1` and `R1` are *miai*, when White takes one of them Black takes the other.

In the actual game White uses the *aji* left in the corner for some Ko threats, that's all White can get out of the local situation.


---

