Good question.
I've looked and looked. I've spent about 20 minutes searching (I figured this would be easy) and yet I still haven't found an old link for this engine, that's still valid.
I'll continue to search for awhile, and if I find it I'll post it here.
By the way, you will probably have better luck if you post this question over at talkchess.com. They're most knowledgable about these types of things (chess engines, GUIs, chess programming, etc.) than the average forum member here.
Ed was right. I finally found a good link, but it took a lot of searching.
On the following page, there's a broken link to the engine:
Now, I took that broken link and put it into the Wayback Machine to find this good (direct) link:
Good work.
I thought about using the Wayback Machine, but I didn't think of using it the way you did... by giving it a broken link directly. I learned something today. Thanks.
Whoa good find, never thought to use it that way either! Thanks for giving it a shot as well Ed
I'm glad we could help you out.
In case you or anyone else is interested, I found a good link to the Engines page that has eight other CB format engines. (They're a bit on the old side, 32-bit design, I think.)
http://web.archive.org/web/20070208082935/http://www.chessbase.com/download/index.asp?cat=Engines
It bothers me a bit to see that Chessbase doesn't appear to care about keeping these links alive. It seems that if something doesn't directly translate to the bottom line, they just aren't interested.
I've spotted a few references to the Turing Engine that you can import into Fritz. The only link I've come across was this one http://www.chessbase.com/newsdetail.asp?newsid=8283
The page doesn't seem to exist anymore. Does anyone have a copy of it or a link to it somewhere? It was a free engine. This blog post mentions it: http://www.chess.com/blog/tradechess/turing---chess-engine---alan-turing