In the board games literature, it has often been suggested that is a variant of the Welsh game , itself descended from the Norse
games. These games, along with the Irish , are played on a grid, often seven squares by seven, with the king in the middle. The king has a number of defending pieces around it at the beginning of the game, and they are surrounded by twice as many attackers. The object is to make a clear path for the king to the edge of the board, while the attackers must attempt to surround, and thereby capture, the king. However, variants are usually played with unequal numbers of pieces, the attackers being twice as numerous as the defenders. by contrast was played with equal numbers on both sides and there is no indication of a king piece. An artefact found in Ballinderry,
County Westmeath in 1932, known as the Ballinderry Game Board, has been suggested to represent fidchell. This is a wooden board with Celtic symbols on it, with a seven-by-seven grid, marked off by 49 holes. Historically, games, especially , were often played with a die, made of a sheep's knucklebone, and this feature seems absent in . In Wales, a clear distinction is made between and , which, if also true of Ireland, would tend to indicate a similar distinction between and . ==Historical impact==