It is a gift presented to the respected Comrade Kim Jong Un in January Juche 104 (2015) by academician of the Russian Academy of Medical Science and his wife. 

They wrote to the most famous Italian company for making this gift.

Chessboard was made from brown oak tree and pieces of white and brown marbles and chessmen of weight manufactured by copper and tin. It is wearing their clear and unchangeable minds of admiring the respected Comrade Kim Jong Un and wishing him good health.