Zx-81 has rolled out a new version of PSP GNU Chess, a chess game, as the name implies, for PSP.

Changes:

• Option to specify search depth (i.e: difficulty)
• Add Undo feature
• Add Book feature, move database is stored in file book.dat. The file given with this homebrew is the book.dat provided with gnuchess (but you can replace it by your own)
• Bug fix when you put black on the bottom of the screen, King and Queen weren’t at the right place !
• Bug fix with keys/analog pad (sensitivity was too high)

Download from Zx-81