CHAPTER 10. PLUGINS 77
Key Action
In menu
Play Start new game
A-B Resume saved game
Navi Show high scores
Up / Down Select starting level
Stop Quit
In game
Play Pause game
Left / Right Aim the bubble
Navi Fire bubble
A-B Save game
Stop Exit to menu
10.1.4 Chessbox
Figure 10.4: Chessbox
Chessbox is a one-person chess game with computer artificial intelligence. The chess
engine is a port of GNU Chess 2 by John Stanback.
It also works as a PGN file viewer. Instead of executing the game from the plugin
menu, look for any file with .pgn extension in the file browser and execute it. Chessbox
will show the list of matches included in the file and allow you to select the one you
want to watch. After that, you can scroll back and forth through the moves of the game.
If the menu is invoked while in the viewer, the user is allowed to select a new match
from the same file or quit the game.
“Force play” while the computer is thinking will cause it to make its move immedi-
ately. If done while it’s your turn, the computer will move for you and flip the board
so that you are playing from the other side. If you want, you can force play an entire
THE ROCKBOX MANUAL IRIVER H3XX
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