SciSys Explorer

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Home * Engines * SciSys Explorer

Explorer Box [1]

SciSys Explorer, (Explorer Chess)
along with Olympiade, Companion II, Concord I, II and Electronic Chess Mark 8, a series of SciSys dedicated chess computers released from 1983 to 85. The computers had the Hitachi HD6301V1 microcontroller with 4 Kibi ROM and 256 byte RAM in common, running the 6800 branch of the LogiChess program by Kaare Danielsen at a clock frequency of 3.6 resp. 7.2 MHz. The SciSys Explorer was Danielsen's first commercial LogiTech release [2], running at 3.6 MHz. The Explorer had an integrated travel sensory pegboard, while the other models were tabletops with press sensory boards.

Companion II

SciSys Companion II [3]

The Companion II ran at 7.2 MHz and had permanent brain implemented. The computer was released in 1984. A revised version of the Companion II was released by Quelle in Germany. A model similar to the Companion II was sold by RadioShack as Tandy 1650 [4].


The rare Concord ran at 3.6 MHz, the Concord II, released in 1985, at 7.2 MHz with permanent brain.

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Companion II




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