C
HAPTER
10. P
LUGINS
62
Key
Action
In menu
Mode
Start new game
Down
Resume saved game
Up
Show high scores
Left
+
Right
Select starting level
On/Off
Quit
In game
Mode
Pause game
Left
/
Right
Aim the bubble
Up
Fire bubble
Down
Save game
On/Off
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
game and watch the artificial intelligence fight against itself.
When you quit the game the current state will be saved and restored when you re-
sume the game. The menu also allows the user to reload the last game saved, save the
current position and start a new game without having to quit the game.
Note:
This plugin will stop playback.
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R
OCKBOX MANUAL
A
RCHOS
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NDIO