Snapback Problem 22 Solution
Keywords: EndGame, Tactics, Problem
![[Diagram]](../../diagrams/11/428a7eb56f8f1150e05be158b787b9e0.png) | Correct move |
is the correct move, which captures the four marked stones, threatening a snapback at a.
![[Diagram]](../../diagrams/51/650e97531c43ba488ca56bd823d44f5b.png) | 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.
![[Diagram]](../../diagrams/39/bbe3cf19fa46c702657b5eca5aeebb41.png) | 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
Charles How about at ?
Dieter thinks there is more to it.
![[Diagram]](../../diagrams/34/f3a6350fac7c66f1e428607891ecdf75.png) | Correct move |
Black loses about 6 points in gote.
![[Diagram]](../../diagrams/49/21bc366cc627ecb3b251c3c29a56b795.png) | Correct move |
This doesn't work, so ...
![[Diagram]](../../diagrams/15/5a2ece33789f1957c3321122e96a830b.png) | Correct move |
at . Black is killed.
![[Diagram]](../../diagrams/13/ba747fc14701ec5e34fc06e2cee96520.png) | Correct move |
I think this may be the main diagram.
![[Diagram]](../../diagrams/7/c317a7be8eb2eb96b7b89c4d7c74758c.png) | Happened in the game |
I think that placement gives White sente. HolIgor
![[Diagram]](../../diagrams/39/2c3d8b83f98c057ceb76ad71f0ddd39a.png) | One more snapback |
connects at
If Black persists then there is another snapback.
![[Diagram]](../../diagrams/45/c5716d6683e4448fc859351ff16ed133.png) | 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.
![[Diagram]](../../diagrams/32/b1d1b511043c51bb0569965b32b24e19.png) | Black surrounded |
If Black is surrounded, at dies. In that case, this ko looks like orthodox play, unless Black is komaster.
![[Diagram]](../../diagrams/11/26589b59a4e4585973e93bb4a3bee111.png) | Black komaster |
When Black is komaster, White continues as in Holigor's line.
This is a copy of the living page
"Snapback Problem 22 Solution" at
Sensei's Library.
2004 the Authors, published under the OpenContent License V1.0.
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