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Hane-descend
Path: Endgame · Prev: EndgameConnectOrNot · Next: EndgameTesujis
Keywords: EndGame, Ko
This is a quite special endgame technique.
Assume the
In this case the descent Since b is a neutral point, White will have no reason to play there except as a ko threat. Let's look at the ko threats here.
Certainly White should start at
This But now Black has no threat at a. With the given configuration White has two threats, net, here.
Fhayashi: For my own clarification, the alternative to the above, playing at
By the way, there is no 'exchange rate' in the endgame between points of territory and ko threats. I think this might be added to the assumptions of yose problems page. In real life there might for example be a large approach ko left on the board, meaning that one would trade-off points against ko threats to some limited extent. unkx80: May I also mention in passing that hane-descent is also commonly used in life and death, as in the example below.
The result is a ko.
Charles It's obviously a day for nit-picking:
Starting with
Path: Endgame · Prev: EndgameConnectOrNot · Next: EndgameTesujis This is a copy of the living page "Hane-descend" at Sensei's Library. ![]() |