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Layout of characters and pixels on the TRS-80 display <ref>[https://en.wikipedia.org/wiki/TRS-80 TRS-80 from Wikipedia]</ref>

[[MicroChess]], by [[Peter Jennings]], was the first commercially-available microcomputer-based chess program running on a TRS-80, soon followed by [[Sargon]], written by [[Dan Spracklen|Dan]] and [[Kathe Spracklen]].

[[FILE:4-1.microchess_screenshot.L062302022.JENNINGS.lg.jpg|none|border|text-bottom|640px|link=http://www.computerhistory.org/chess/full_record.php?iid=stl-431e1a0807480]]

Microchess 1.5 on [[TRS-80]] <ref>[http://www.computerhistory.org/chess/full_record.php?iid=stl-431e1a0807480 Microchess running on Radio Shack TRS-80 microcomputer], 1976, Courtesy of [[Peter Jennings]] and [http://www.digibarn.com/ Digibarn], [[The Computer History Museum]]</ref>

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