What is "fidchell"

Fidchell (in Irish; also spelled fidhcheall, fidceall, fitchneal or fithchill, and pronounced in Old Irish) or gwyddbwyll (in Welsh) was an ancient Celtic board game. The name in both Irish and Welsh is a compound translating to "wood sense"; the fact that the compound is identical in both languages demonstrates that the name is of extreme antiquity. The game is occasionally claimed to be a predecessor of the modern game chess. The game was played between two people who moved pieces across a board; the board shared its name with the game played upon it. The name has evolved into ficheall, the Irish word for chess; the similar gwyddbwyll is the name for chess in modern Welsh.