A paper on conspiracy numbers for min-max search appeared in the Journal of Artificial Intelligence Research in 1988. The conspiracy number algorithm was later improved in a paper with Deniz Yuret to alpha-beta-conspiricay (ABC) search in 1993. Conspiracy numbers and ABC search influenced the design of Deep Blue which defeated Gary Kasporov in 1997. The ABC paper was only a postscript file on my web page until Jonathan Shaeffer got me to send it to the Journal of the International Computer Game Association (ICGA) where it appeared in 2002.