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an early microprocessor chess program, written by [[Mike Johnson]] in [[Assembly]] to ran on a home built [[Motorola]] [[6800]] 8-bit system at 1 MHz, with 16 KiB of memory and the program loaded by [https://en.wikipedia.org/wiki/Cassette_deck cassette recorder] <ref>[http://www.chesscomputeruk.com/html/chess_computers_-_the_uk_story.html Chess Computers - The UK Story] from [http://www.chesscomputeruk.com/index.html Chess Computer UK] by [[Mike Watters]]</ref>, searching about 300 [[Nodes per secondSecond|nodes per second]] <ref>[[David Levy]] ('''1978'''). ''The PCW Microcomputer Chess Championships''. [[Personal Computer World]], November 1978, [http://www.chesscomputeruk.com/PCW-MCC_1978.pdf pdf] from [http://www.chesscomputeruk.com/index.html Chess Computer UK] by [[Mike Watters]]</ref>.