In "Orkeyinga saga", the notability of Hnefatafl is evident in the nine boasts of Jarl Rögnvald Kali Kolsson, who tops his list with skill at "Tafl". In "Friðþjófs saga", a conversation over a game of Hnefatafl reveals that the king's men are red and the attackers white, and that the word "hnefi" does indeed refer to the kingpiece. The most revealing – and yet most ambiguous – clues to Hnefatafl lie in a series of riddles posed by a character identified as Odin in disguise (see Gestumblindi) in "Hervarar saga".