BlackBox Game

This Java program implements the classic board game Black Box, originally invented by Eric Solomon. It may be run as an applet or an application.

Play Online

You can play the game in your web browser using the applet, with either the standard or large board. Brief instructions and a link to the game rules are provided.


BlackBox is made available under the terms of the Free Software Foundation's General Public License, Version 2.

Source code is available for download.

BlackBox development uses the Subversion revision control system. Instructions for access to the Subversion repository for Altogether are found at, and there is a web interface to browse the repository at

Last updated September 3, 2006

Copyright 2006 Eric Smith

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