Chess (John Krause)

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Chess, a chess program by John Krause, written in 6502 machine language with versions for Commodore VIC-20 (with at least 8 KiB expansion), Commodore 64, Atari 8-bit and Apple II, published and described in the [https://en.wikipedia.org/wiki/Compute! Compute!] December 1984 issue. The program was printed in Basic syntax with machine code in Data statements, along with leading read and poke loop, to read the data and store it as executable code in memory. The program applies alpha-beta with a depth from two to six plies depending on level 1-5, and a material only evaluation with {1,3,3,5,9} point values. An improved 8086 version of the program for the IBM PC was published a few months later.

=Publications=
 * John Krause (1984). CHESS. Compute!, Issue 055
 * John Krause (1985). For IBM PC & PCjr CHESS. Compute!, Issue 064

=References= Up one Level