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 , running at 3.6 MHz. The Explorer had an integrated travel sensory pegboard, while the other models were tabletops with press sensory boards.
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 .
The rare Concord ran at 3.6 MHz, the Concord II, released in 1985, at 7.2 MHz with permanent brain.
- Explorer Chess from Chess Computer UK by Mike Watters
- SciSys Explorer Electronic Chess Computer from The Spacious Mind
- Scisys Explorer by Tom Luif
- SciSys Explorer from Schachcomputer.info Wiki (German)
- Chess Companion II from Chess Computer UK by Mike Watters
- SciSys Companion II from Schachcomputer.info Wiki (German)
- Chess Companion II (pdf) by Hein Veldhuis
- Concord from Chess Computer UK by Mike Watters
- Concord II from Chess Computer UK by Mike Watters
- Scisys Concord II by Tom Luif
- SciSys Concord II from Schachcomputer.info Wiki (German)
- Olympiade from Chess Computer UK by Mike Watters
- Electronic Chess Mark 8 from Chess Computer UK by Mike Watters
- SciSys Electronic Chess Mark 8 from Schachcomputer.info Wiki (German)
- Tandy 1650 from Schachcomputer.info Wiki (German)