Cairo Cork Coaster Puzzle by Sjaak Griffioen - IPP 28 Prague Exchange

This is a really cool puzzle set that features some finely cut cork into non-regular pentangle shaped pieces.

Instruction sheet offers 6 challenges and includes 12 different cork pentangles with all possible combinations of inside and outside curved long sides.

It looks as if two hexagonal patterns cross each other so this tiling can be found in the streets of Cairo, Egypt, hence the name of this puzzle.

Made by LaserExact - Hans van der Zon