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[[Template:Quote Greenblatt on Kotok-McCarthy|Quote]] by [[Richard Greenblatt]] concerning [[Mac Hack|Mac Hack VI]] from his ''Oral History'' <ref>[http://archive.computerhistory.org/resources/text/Oral_History/Greenblatt_Richard/greenblatt.oral_history_transcript.2005.102657935.pdf Oral History of Richard Greenblatt] (pdf) from [[The Computer History Museum]]</ref>:
Most of this printout was analysis from the [[Kotok-McCarthy-Program|Kotok program]]. And I also saw some kind of a textual thing, which I don’t believe was [[Alan Kotok|Kotok’s]] thesis, but which had some of the same information as Kotok’s thesis. It was probably some kind of a technical report, or something, that was anticipatory to Kotok’s thesis <ref>[[Alan Kotok]] ('''1962'''). ''[http://www.kotok.org/AI_Memo_41.html Artificial Intelligence Project - MIT Computation Center: Memo 41 - A Chess Playing Program]''. [ftp://publications.ai.mit.edu/ai-publications/pdf/AIM-041.pdf pdf]</ref>. Anyway, one of the things I remembered, and which I just talked with Kotok, as a matter of fact, a few days ago, was the detail that they had is [[Alpha-Beta|Alpha Beta]], and so forth, and they had these whips, and the whips were set at 4, 4, 3, 3, 2, 2, 1, 1. In other words, that was how many. It would first look at the top ply. It would look at the four best moves. The next plys, it would look at the three best. Next ply, two best, next ply, one best. Well, I just recognized immediately that that was incredibly wrong.
