RTG Problem 24 / Attempts

Sub-page of RTGProblem24
White to play.  

Bill: I think best play depends upon the ko threat situation and the rest of the board. But, since the kos are so big, I am going to assume that neither player has a ko threat, and also that the temperature of the board is not too high, so that there will be no ko exchange.

White makes ko.  

W5 takes ko. Later, B2 - W a is sente.

White makes ko with W1. If W3 instead, Black can respond with B7 and kill.

With no ko threats, Black has to protect with B4 and B6. W7 escapes.

White escapes directly?  

Grauniad: Doesn't this allow White to escape without a ko? If B2 at 3, W3 at a kills 4 Black stones and lives.

Bill: The descent dies.

Death in the descent  

B6 at black+circle (nakade).

RTG Problem 24 / Attempts last edited by DaveSigaty on November 1, 2004 - 23:38
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