Endgame Problem 8 / Solution

Sub-page of EndgameProblem8
9x9 diagram  

Suggest your answer(s) here...

-Kris Rhodes

Mistake - Black loses  

Note that for Black to connect at B1 leads to a hideous loss, because of a shortage of liberties. (Yes, I assumed this was the answer until I gave it more thought.) -- Bignose


What about this elegant move (B1)? White can't break in.

Kris: I think there is a move worth one more point - but of course, Black wins in either case.


Lucky: Black can play any of the marked points a-g with the same result. If White captures three stones...


... after W3 Black can connect. Black wins by 7 points.

If Black does nothing  
If Black does nothing (ii)  

If Black does nothing (passes) he cannot connect after W3.


White takes ko and has more threats (see HolIgor sequence). So White connects the ko and Black wins by 6 points. Black has lost a point.

If Black does nothing  

From this position...

If Black does nothing  

Shouldn't this be the next move?

-From Jasonred

White response  

Playing B4 here is the same as connecting at B1 in the initial diagram. White could play W5, capturing the four black stones. If Black responds with B6, W7 captures all seven stones.

--Brian Marshall

Endgame Problem 8 / Solution last edited by Phelan on July 9, 2006 - 01:34
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