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In 1961 at MIT, Robert A. Wagner became member of the "the chess group" supervised by [[John McCarthy]], along with [[Alan Kotok]], [[Charles Niessen]] and [[Michael A. Lieberman]].
They wrote the chess program for the [[IBM 7090]] <ref>[[Alan Kotok]] ('''1962'''). ''[http://www.kotok.org/AI_Memo_41.html Artificial Intelligence Project - MIT Computation Center: Memo 41 - A Chess Playing Program]''.</ref>, which later evolved to the [[Kotok-McCarthy-Program|Kotok-McCarthy-Chess Program]].
In a 1982 usenet post, [[Tom Truscott]] mentions Wagner's encoding of [[Chess Position|chess positions]], which requires ~143 bits <ref>[http://quux.org:70/Archives/usenet-a-news/NET.chess/82.01.05_duke.1553_net.chess.txt Re: sri-unix.426: compact representation of a position] by [[Tom Truscott]], [http://quux.org:70/Archives/usenet-a-news/NET.chess net.chess], January 5, 1982</ref>
<ref>[http://quux.org:70/Archives/usenet-a-news/NET.chess/82.01.07_duke.1593_net.chess.txt Re: sri-unix.444: compact representation of chess positions] by [[Tom Truscott]], [http://quux.org:70/Archives/usenet-a-news/NET.chess net.chess], January 7, 1982</ref>.
