How does the game black box work?

How does the game black box work? Black Box is played on a two-dimensional grid. The object of the game is to discover the location of objects (“atoms”, represented by metal balls in the Waddingtons game and by yellow balls in the Parker Brothers version) hidden within the grid, by the use of the minimum number of probes (“rays”).

Black Box is played on a two-dimensional grid. The object of the game is to discover the location of objects (“atoms”, represented by metal balls in the Waddingtons game and by yellow balls in the Parker Brothers version) hidden within the grid, by the use of the minimum number of probes (“rays”).
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