The pieces are so abstract that none can be identified without hints. All were made using the technique of medieval Persian chess — shatranj, as they called the game in the Arab East.
The king is depicted as the royal throne, while the queen (“vizier” or “prime minister” in the East) is also a throne but a less lavish one. The edge piece is a mysterious creature, the Roc, a mighty and formidable mythic bird. Europeans later saw the silhouette of a fortress wall merlon (the rook) in its shape. The heyday of shatranj in the East began in the 10th–11th centuries, when the first recognized masters, like Al-Suli, made history.