# Snapback Problem 22 / Solution

Sub-page of SnapbackProblem22
Happened in the game (Correct solution)

The placement at 1 allows white to capture four black stones in sente or make a break along the first line threatening the life of the whole group.

Attempts and discussion

Correct move

is the correct move, which captures the four marked stones, threatening a snapback at a.

Black defeds simply

is a mistake, which loses the whole left-side group. After , White wins the capturing race by one move. Even if Black gives up , he has suffered a great loss.

Black defends wisely

Black should just give up his four stones and defend his group as a whole. White gains ten points in sente, though: a great result.

--Dansc

Dieter thinks there is more to it.

Correct move

Black loses about 6 points in gote.

Correct move

This doesn't work, so ...

Correct move

at . Black is killed.

Correct move

I think this may be the main diagram.

Happened in the game

I think that placement gives White sente. HolIgor

One more snapback

connects at

If Black persists then there is another snapback.

White gote

Bill: at a is bad. Simply connecting takes sente.
is better than just threatening to take the stones, allowing Black to play at .
I believe that this is orthodox play.

Black surrounded

If Black is surrounded, at dies. In that case, this ko looks like orthodox play, unless Black is komaster.

Black komaster

When Black is komaster, White continues as in Holigor's line.

Snapback Problem 22 / Solution last edited by HolIgor on September 3, 2004 - 09:24