Rare Cube Chess Set produced for Zarpa / Capablanca by Zarandona Designs . These were made in an extremely limited number, reportedly only 10 were produced , due to the extensive engineering skills for each piece . Capablanca was the surname of the famous Chess Master . Produced in the 1970s the pieces form together into a solid cube . So provides a great challenge to puzzle enthusiasts, if done correctly it will hold its form within itself when held , to assist with this is full step by step instructions , in the form of a set of cards . The cube itself is around 3kg and comes with its original Perspex box . The board is pint signed and is perspex.