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Parker Chess, (Chess)
a commercially available chess program on disk for the IBM PC written in 8086 assembly by David Broughton, Philidor Software aka Intelligent Software, manufactured by Parker Brothers in 1983 [1]. The program evolved from Philidor Software's development chess program dubbed Philidor [2], and already applied an early version of the SEX Algorithm, the SX Algorithm, using fractional ply increments, extensions and reductions [3].

Atari 8-bit

In 1983, Parker Brothers purchased Chess as cartridge system for Atari 8-bit home computers [4].

External Links

Parker Chess

Parker Brothers


  1. ^ Chess Computers - The UK Story from Chess Computer UK by Mike Watters
  2. ^ Broughton, David from Schachcomputer.info Wiki
  3. ^ David Levy, David Broughton, Mark Taylor (1989). The SEX Algorithm in Computer Chess. ICCA Journal, Vol. 12, No. 1, Chipography
  4. ^ Atari 400 800 XL XE Chess : scans, dump, download, screenshots, ads, videos, catalog, instructions, roms

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