I came across this new? chess game available for the Amiga (68k and PPC) / Linux / Windows and Gameboy. Only the Amiga version is available as freeware.
I have not managed to run it under WinUAE (it always seems to hang after you double click on the program icon - but I have not tried too seriously), nor does is seem to work on my A1200 although it does load (this takes quite a while) but whichever version I choose (AGA/ECS/WB) the GFX are corrupted after it finishes loading.
Note that the system reqs state that it requires at least an 030 processor and some fast RAM, so it [probably] won't work on an unexpanded A1200.
more information at http://hellhound.nl/hc/main.html
Also available from Aminet - uploaded in June 2004.