The Zatrikion is the ancient greek chess, which was very popular in the ancient Greece.
The rules of the Zatrikion are the same with the ones of the modern chess, but you can move your pieces around as well (rules are included). The most renowned chess players worlwide practice on Zatrikion, because it is more challenging.
This version includes ceramic board and metal pieces.
Additionaly, a box with velvet cases and a special bag are included in the price so as your chess set to be protected.