Paul Stivers wrote:
Correction, if I rename the engines, they don't run. On starting a
new game though, fritz will make moves. I think Fritz must be using
an opening book in this case.

This is what you'd expect. Chessbase engines use the UCI protocol
and, under that protocol, handling the opening book is the respon-
sibility of the interface, not the engine itself. So, while the
position is `in book', the interface is making the moves and doesn't
even know that there won't be an engine there when it needs it.


Dave.

--
David Richerby Generic Composer (TM): it's like a
www.chiark.greenend.org.uk/~davidr/ pupil of Beethoven but it's just like
all the others!