Dudo

Dudo, Spanish for I doubt, is a dice game of bluffing and probability played widely across South America, where it is also known by regional names including cacho, pico, perudo, cachito and dadinho, and in English-speaking contexts as liar's dice or Peruvian liar dice. Each of two or more players conceals five dice under a cup, and in turn players make escalating bids about how many dice showing a particular face value are present across every player's hidden hand combined, with aces counting as wild and standing in for any other value. A player who doubts the current bid may call dudo to challenge it; the cups are then revealed, and whichever side of the bet is proven wrong loses a die, with the last player still holding dice declared the winner. The game's blend of memory, probability and social bluffing has made it a staple of gatherings across the Andean region and beyond.