https://tangentsoft.com/pidp8i/doc/rele ... /README.md
Chekmo II by John E. Comeau (1976)
Windows & Linux profiled buildsCHEKMO-II, (CheckMo-II) the classical chess program for the PDP-8, written in the 70s by Digital Equipment Corporation instructor
John E. Comeau in PAL-8, the PDP-8 assembly.
CHEKMO II is a chess playing program which will run on any PDP-8 family computer. The program will play either the white pieces or
the black pieces, and will play and accept all classes of legal moves, including castling both short and long, en passant pawn captures,
and pawn promoting moves to any legal promotion piece. The program prints out its moves m Algebraic Notation, and accepts moves using
Algebraic Notation.
* Converted to ANSI C with WinBoard Protocol
* Enhanced evaluation and king safety
* Ported by Jim Ablett (May/June 2026)
Proton link:
https://drive.proton.me/urls/MEXCZPBGAR#sRfcayyhIlUq
Smash link:
https://fromsmash.com/ChekmoII64JA
Jim.