The story: everything started from a message (comp.sys.apple2).
In 2014 Stefan Wessels created cc65-Chess for the C64. It was completely written in C using cc65.
The game and UI logic are separated from the actual board and UI rendering which allows easy porting across 8-bit platforms.
In January 2020 Oliver Schmidt ported cc65-Chess to the Apple II and this helped a lot to have in May 2020 the Oric port ready!
Oric related source code is freshly merged and can be found in the main github-repository. Compiled TAP file is available here.
Controls: arrows - move cursor, RETURN - pick/place, ESC or 'M' - menu, 'A' - show/hide attackers, 'D' - show/hide defenders.
Well, and because the port was really easy and fun, I decide to make a full finished game release! Enjoy it!
Forum link: https://forum.defence-force.org/viewtopic.php?t=2110
cc65-Chess-raxiss-1.00.tap.zip