Re: computer-go: [Questions] Null Move

[Erik van der Werf <E.vanderWerf@xxxxxxxxxxxxx>]

Mousheng Xu wrote:
> About the "ALWAYS fail" part: if it always fails, then why bother using a
> depth "depth - 1 - R"? To make sure it always fail, one can pass in depth =
> 0 and not worry about the alpha & beta.

Failing in this context is not a bad thing. It just means that the value
is outside of the window. The thing a minimal window does is just
proving a node to be inferior or superior (fail-low / fail-high). Then
if you still need an exact number, do a re-search with a larger window.

Erik