CHESS IN EAST SIBERIA AND ARAB WORLD
Chess was also recorded from the Yakuts, Tunguses, and Yukaghirs; but only as a children's game among the Chukchi. Chessmen have been collected from the Yakutat people in Alaska, having no resemblance to European chessmen, and thus likely part of a chess tradition coming from Siberia.
Chess passed from Persia to the Arab world, where its name changed to Arabic shatranj. From there it passed to Western Europe, probably via Spain.
Over the centuries, features of European chess (e.g. the modern moves of queen and bishop, and castling) found their way via trade into Islamic areas. Murray's sources found the old moves of queen and bishop still current in Ethiopia. The game became so popular it was used in writing at that time, played by nobility and regular people. The poet al-Katib once said, “The skilled player places his pieces in such a way as to discover consequences that the ignorant man never sees... thus, he serves the Sultan’s interests, by showing how to foresee disaster.”