Mac Hack
Mac Hack is a computer chess program written by Richard D. Greenblatt. Also known as Mac Hac and The Greenblatt Chess Program, it was developed at the Massachusetts Institute of Technology. Mac Hack VI was the first chess program to play in human tournament conditions, the first to be granted a chess rating, and the first to win against a person in tournament play.

Its name comes from Project MAC ("Multi-Level Access Computer" or "Machine-Aided Cognition") a large sponsored research program located at MIT. Over time, it became a hack in the sense of "", a book by Steven Levy in which Greenblatt appears. The number VI refers to the PDP-6 machine for which it was written.
Q1122588
computer chess
Concept
Q2469699
Richard D. Greenblatt
PER
Q49108
Massachusetts Institute of Technology
ORG
Q718
chess
Concept
Q5093345
chess rating
Concept
Q1354917
Project MAC
LOC
Q929788
Steven Levy
PER
Q2755264
PDP-6
MISC
Q1882423
Mac Hack
MEDIA
Q1882423
Mac Hack
MEDIA
-6^^http://www.w3.org/2001/XMLSchema#decimal
-6
NUMBER
instance of
sport
facet of