Cut Threat Clamp / Discussion

Cut Threat Clamp 1  

wants to separate black, and damage black's side territory.

What would you do here?

Cut Threat Clamp 1  

is a clamp, and threatens a cut at a, so we can call it a Cut Threat Clamp.

Cut Threat Clamp 1 continued  

If white descends at , then is a cut, made strong by a hanging connection

Cut Threat Clamp 1 failure  

In this case, black falls back at , and with the double hane of , white gets what she wanted.

If was not possible, a would also be good for white.

Cut Threat Clamp 1 failure  

Alex: I agree that the clamp is correct and the hane wrong for Black, but are you sure the double hane is good for White? I don't think White has much here, except aji to work with if she later invades lower down the left side. As White, I would extend at the point of .

Transposition  

Bill: Since this position can be reached by this sequence starting with the clamp, if (hane) is an inferior first move, then (two step hane) is also inferior.

Tamsin: Is the Cut Threat Clamp a recognised technique? If it's a neologism, would you mind very much stating so? Thanks.

nachtrabe: Clamp is a "recognized" maek--it is in the books--but I have never heard anyone use the phrase "cut threat clamp" (I have heard "clamp that threatens a cut"). Personally I wouldn't mind seeing the content on this page merged in with clamp.

Fujisawa, in the tesuji dictionary, refers to it as a kosumi-tsuke, noting the necessity of third stone involved in the shape

-- contents of page as of 2005 august 12 (end)--

Comment  

unkx80: When the Black chain has only four stones, the clamp does not work either. White can turn the entire corner into a ko.