Chess AI Scheme Program

A long time ago I read a book on AI programming in Scheme that included
a chess program, including an AI opponent.  The code was very small,
probably about 10 pages.  Does anyone here know the book I'm referring
to, or know where on the web I might be able to find it?  A google
search has turned up nothing.

Thanks!

Jon
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Learn to program using Linux assembly language
http://www.cafeshops.com/bartlettpublish.8640017