Original ChessEval documentation.
This material originated in the historical ChessEval collection website and is preserved here as documentary provenance within the current site.
Original ChessEval page for R40 with the 55x55 tournament board.
Historical source identifier: RareBoard/R40Tournament.htm
Historical hardware observations.
Written by MMO. First edited 26 January 2014; last edited 12 July 2016. Original source: RareBoard/R40Tournament.htm.
The microprocessor is a VLSI VY86C061PSTC PROTO A.
The clock has a frequency of 40 MHz. This explains the need for a fan and a plaque of metal.
Two green labels on the side, near the clock.
Related collection records.
Historical photographic record.
40 historical images are preserved inside the current ChessEval website.
