Why not use the
pbchess package?
Download page.
The menu:
Coolreader
FileManager
OPDS_alpha
Chess
Checkers
Sokoban
Reversi
Gomoku
Takuzu
Sudoku
Dictionary
Notepad
Calculator
UsbNet
WiFi
Reboot
Power off
Plus "QTFrotz" (for old text interactive games) or any other QT program you added.
You can remove any you don't want cluttering up the menu.
Luck;
Ken