The art of capturing stones / Errata

Black to play -- Can this white group be killed ?  

Before I reveal both the book answer and my own answer, which I believe shows the book answer to be wrong, I'll give you a few minutes to think about the problem yourself.

When you're ready to read the answer, don't click here. Just keep reading.

The only purpose of this sentence is to use up some space so you won't inadvertantly see the answer in case you want to try to solve the problem yourself.

This sentence is the second of two with the same purpose.

Here comes the answer !

The answer starts like this  

Black de-eyes with , white eyes with , black atari's with , white counter ataris with , black captures with .

The answer continues  

White atari's back at , black atari's at , white captures at .

The next (black) move is where the book and I differ.

More of the book answer  

The book shows black throwing in and saying atari with , and white forming a ko with .

But I see a better move for that looks to me like unconditional death to white.

This looks better to me for black  

It looks to me like throwing in this way with kills white completely.

Is this a Yutopian error ?

You can email me by clicking here : Email to Eric

Other possibility  

jvt: I agree with your , this is another way to kill.

Dieter: Agree.