Black Box (1977)

About this game

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. The German First Edition was named LOGO but the LEGO-Company was not amused with this Title and thought there will be a possibility of confusion. So PARKER renamed the Second Editon to ORDO.

Does it fit your group?

• Group size. Works with 1 to 2. It has a designed solo mode.
• Rules load. At 2.1/5 this is a mid-weight game — expect a proper rules explanation before you start.
• Age. The publisher suggests 10 and up. That rates the rules rather than the artwork, so judge the box yourself for younger players.