Circular chess is a chess variant played on 64 cells circular board made of 4 concentric rings of 16 cells each.

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Documents in the British Library and elsewhere suggest that circular chess was played in Persia as early as the 10th century AD, and further references are found in India, Persia, and, later, Europe. Historical rules are in sources that are little-known in the West, such as Muhammad ibn Mahmud Amuli's 'Treasury of the Sciences', so when, in 1983, Lincoln historian David Reynolds came across a reference to the game being played in the Middle Ages and set about attempting to revive interest in it, he chose to draw up a new set of rules, based around those of orthodox chess. Since that time, the older rules of circular chess have become far better known.