Başur Höyük burial mound in southeast Turkey could represent the earliest gaming pieces ever found. Similar pieces have been found in Tell Brak and Jemdet Nasr, but they were isolated. Researches have called the find Dogs and Pigs. The earliest board games were a pastime for the elite and were sometimes given as diplomatic gifts according to a study published in Antiquity. Another possibility is that boards were reserved for the elite, but lower classes played on boards scratched into stone or on the ground. Some archeologists think that stones carved with long rows, dated between 7000 BCE and 9000 BCE, were used for a mancala-like game. The earliest known board games all used dice and were for two players. Among the earliest examples of a board game is senet, a game found in Predynastic and First Dynasty burial sites in Egypt (circa 3500 BCE and 3100 BCE, respectively) and in hieroglyphs dating to around 3100 BCE. The game was played by moving draughtsmen on a board of 30 squares arranged into three parallel rows of ten squares each. The players strategically moved their pieces based on the throw of sticks or bones. The goal was to reach the edge of the board first. Senet slowly evolved to reflect the religious beliefs of the Egyptians. The pieces represented human souls and their movement was based on the journey of the soul in the afterlife. Each square had a distinct religious significance, with the final square being associated with the union of the soul with the sun god Re-Horakhty. Senet may have also been used in a ritual religious context. The Royal Game of Ur, or Game of Twenty Squares was played with a set of pawns on a richly decorated board and dates from 2600 to 2400 BCE. It was a race game which employed a set of knucklebone dice. This game was also known and played in Egypt. A Babylonian treatise on the game written on a clay tablet shows that the game had astronomical significance and that it could also be used to tell one's fortune. The game of Ur was also popular with the lower classes, as attested by a 2,700-year-old graffiti version of the game, scratched onto a gateway to a palace in Khorsabad. Similar games have been found in Iran, Crete, Cyprus, Sri Lanka, and Syria. Excavations at Shahr-e Sukhteh ("The Burnt City") in Iran