President Chess, (President Turbo)
a prototype of a dedicated chess computer by SciSys with a Sensory Board and an early program by Julio Kaplan, somewhere between Sensor Chess and Superstar. The computer has a 6502A processor running at 2 MHz with 18 KiB ROM and 2 KiB RAM. It played the 3rd European MCC 1982 in London under the name President Turbo . It was never released, effectively superseded by the Superstar 28K in October 1983. A few test specimen are valuable collector's items .
- President Chess from Chess Computer UK by Mike Watters
- SciSys - President Chess (prototype) (pdf) by Hein Veldhuis