This is an Irish version of Hnefatafl, which uses the smallest board. White's goal is to get his king safely to one of the corners of the board; Black's goal is to capture White's king. The center square is called the throne and only the king may occupy it; but any piece may pass over it. All pieces move like chess rooks. All pieces are captured custodian-wise: by surrounding a single piece on two opposite sides, either horizontally or vertically; The corners or empty throne count as hostile pieces for the purposes of capture, except that the king cannot be captured using the throne.