Black Box or "KO-code" 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.
This copy is in Good condition. There is some coloring and shelfwear, including a crack in the lid. As always, the photos are of the game you will receive.