|Poker Chips Problem Using 3 Colors|
What is the smallest number of different-colored poker chips of like size that can be placed on a flat surface so that they meet the condition that no two chips of the same color touch each other? In the picture above, the answer is intuitively simple...three. However, the problem that I would pose to you is this:
What is the smallest number of poker chips of like size that can be placed on a flat surface so that chips of not three but four colors are necessary for meeting the same criteria as in the example above?