Perudo (Danish)

Perudo is a South American dice game that is often known here by the name SNYD or TÆNKEBOKS, where each player gets five dice and a cup to roll and hide the dice with.

Players successively make higher declarations regarding the results of all the remaining dice in the game, e.g., "there are ten sixes." But someone can always challenge the bid. When that happens, all the dice are revealed, and either the bidder or the challenger loses dice, depending on who was right. The last player with dice is the winner.

Who bluffs the best?