Activities/Gnuchess

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About Gnuchess

Gnuchess.svg

Gnuchess is a Sugar front end to the gnuchess program [1], a computer program for playing chess.

Gnuchess.png

NOTE: This program is not yet available for XO 1.75.

Where to get Gnuchess

The Gnuchess activity is not yet available for download from the Sugar Activity Library: Gnuchess

The source code is available on on the Sugar Labs Gitorious server.

Using Gnuchess

The Toolbars

Gnuchess-toolbar.png

from left to right
Activity-toolbar Button
(toolbar described below)
Edit-toolbar Button
(toolbar described below)
View-toolbar Button
(toolbar described below)
Configure-toolbar Button
(toolbar described below)
Custom-toolbar Button
(toolbar described below)
New game
Start a new game.
Undo
Revert last move (When playing against the robot, the last two moves are reverted.) Note that undo is disabled when playing remotely over the network.
Hint
Used to offer a hint to the current player
Message area
Current status, e.g., Hint, Check, Checkmate, et al.
Stop Button
Exit the activity

Activity Toolbar

Activity name field
used to change the name of the activity
Reflection Button
used to write descriptions for the Journal entry of this instance of Portfolio
Share Button
Gnuchess supports sharing with another Sugar user

Gnuchess-edit-toolbar.png

Copy
Copy current game to clipboard (in algrbraic chess notation)
Paste
Paste a game from the clipboard (in algrbraic chess notation)

Gnuchess-view-toolbar.png

Fullscreen
Used to show board at full screen with no toolbars showing. (Type ESC to return from Fullscreen mode.)
Playback
Playback the current game as an animation.
Game history
See a transcript of the game history in algebraic chess notation [2].
White
Display of White's most recent move
Black
Display of Black's most recent move

Gnuchess-configure-toolbar.png

Play White
You play White, your opponent plays Black
Play Black
You play Black, your opponent plays White
Easy
This is the minimal setting for gnuchess: "book off" and "depth 1"
Hard
This is default setting for gnuchess, which includes "book on"
Play against the computer
The computer will move automatically
Play against a person
Take turns on the same computer

Gnuchess-custom-toolbar.png

Used to load custom artwork for each piece from the Sugar Journal.

Additional notes

  • In order to castle on the King's side (O-O), move the King to the g file.
  • In order to castle on the Queen's side, move the King to c file.
  • When the King is put in check, its square will flash
  • When given a hint, the squares of the piece to move and its destination are flashed. Also, the hint is displayed in algebraic notation.
  • The file saved to the Journal is in portable game format (PGN).

Additional notes re sharing

  • When sharing, the Sugar colors of ones opponent appear on the 'human' button.
  • When sharing, only the sharing can start a new game.
  • When sharing, the sharer must start a new game once the opponent has joined.

Learning with Gnuchess

Extending Gnuchess

Where to report problems

You can soon report bugs and make feature requests on our bug-tracking system (You need to create an account first). To list all open tickets of Gnuchess you can use query component=Gnuchess. You are also welcome to leave comments/suggestions on the Talk:Activities/Gnuchess page.

Credits

The Sugar wrapper for GNU Chess was written and is maintained by User:Walter.