Chess2x by ParkyDR is a chess program using GNUchess as its engine. The game has seen it’s last update sometime in 2007, but got updated last week.

20071231 Chess2x v0.4 (GP2x game) Chess2x v0.5 (GP2x Game)

Changes:

1) Tighten up promote check
2) Auto repeat for joystick, L/R and volume
3) Get rid of 2 pixel gap on right of screen
4) Combine move and in game menus
5) Provide feedback on volume change

http://dl.openhandhelds.org/cgi-bin/gp2x.cgi?0,0,0,0,25,1912