Here are five diamonds, each divided into two colored regions:
Cover each diamond with the 12 hexiamonds so that every hexiamond covers cells of just one color. You may flip hexiamonds over.
Click on any diamond to see the solution.
Unconfirmed rumor: in Belgium and the Netherlands these are sometimes known as Bassie en Adriaan Diamonds.
A convenient set of acrylic hexiamonds is available from Kadon Enterprises as Iamond Hex™.
See also Yin-Yang Dominoes.
Last revised 2018-08-06.