Chessboard
Board games have been known since ancient history, with the oldest records being paintings in mastabas of the First and Third Dynasties of Egypt (3100-2700 BC). The first known version of chess appeared around the 6th century in India and was called Chaturanga, played on a board of the game Ashtapada. This board was monochromatic and divided into eight columns by eight rows, with special marks called "castles" in the first, fourth, fifth, and eighth squares of the "a", "d", "e", and "h" columns, which served a function in Ashtapada, but not in Chaturanga.
Dunhuang Go Manual
The Dunhuang Go Manual or Dunhuang Go Classic or simply the Classic of Go () is the earliest surviving manual on the strategic board game of Go (). Dating from the 6th century, it exists as a single manuscript that was discovered in the 'Library Cave' of the Mogao Caves in Dunhuang, China by Aurel Stein in 1907, and which is now in the collection of the British Library in London, England.