Ordo (Black Box) is probably the most enjoyable game of deduction ever conceived. One player shoots rays into the "black box" to discover the ball configuration set up by the opposing player. The positions of the balls may deflect the rays, return them to their point of departure, or even absorb them. The behaviour of the rays as they exit, or disappear inside the "box", gives clues to the puzzle's solution.
Author: Eric Solomon ~ Publisher: Parker, 1978 ~ (Black Box) ~ Find It! 
