Make sure you have the latest version of Java installed. Wait for the applet to load (445 kB). You play as white.
When the game is over you can start a new game by refreshing this page.
The connect6 game rules are found on the following page:
To play the boardgame as black or play versus other bots you have to download the standalone .jar file:
Download Connect6.jar (445 kB) | Download source (184 kB)