Black Box is a puzzle game in which one player creates a puzzle by secretly choosing the positions of 4-5 marbles on a 8x8 grid. The other player tries to guess their positions by shooting 'rays' into the grid and seeing how they bounce around. The player requiring the fewest rays to solve a puzzle wins.Online Play BrettspielWelt (real-time, solitaire) http://www.clickmazes.com/bbox/ixbbox.htm (real-time, solitaire) http://www.bibeault.org/blackbox/ CCG Workshop (no longer available) - BoardGameGeek