Jerry,

To make it even more interesting, these chips are all unique. Tables 1, 2 and 3 all have the same color chips, but, the inserts on table 1 are white, they are black on table 2 and gray on table 3.

Then, tables 4, 5 and 6 all use the same 7 colors, but table 4 has gray inserts, table 5 has black inserts and table 6 has white inserts, so that in the end, all 42 chips are different.

Greg