Activities/Gnuchess

About Gnuchess

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

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

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

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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

Copy

Copy current game to clipboard (in algrbraic chess notation)

Paste

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

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

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 or an opponent on the network (button will change colors when playing over the network)

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.

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.