aka cacho, pico, perudo, cachito, dadinho
this game can be played by two and consists of guessing how many dice, placed under cups, there are on the table showing a certain number. the player who loses a round loses one of their dice. the last player to still have dice is the winner
each player starts having five dice and a cup, which is used for shaking the dice and concealing the dice from the other players
after deciding who starts the game (each player rolls one die), both players shake their dice in their cups, and then each player looks at their own dice, keeping his dice concealed from the other player
then, the first player makes a bid about how many dice of a certain value are showing among all players, at a minimum. "Aces" (dice showing a "One") are wild, meaning that they count as every number
for example, a bid of "five Threes" is a claim that between both players, there are at least five dice showing a "Three" or an "Ace"
the other player challenges the opponent to raise the bid or call "Dudo" to end the round
a player can increase the quantity of dice (e.g. from "five Threes" to "six Threes") or the die number (e.g. "five Threes" to "five Sixes") or both
if a player increases the quantity, he can choose any number e.g. a bid may increase from "five Threes" to "six Twos"
a player who wishes to bid "Aces" can halve the quantity of dice, rounding upwards. for instance, if the current bid is "five Threes" then the opposite player would have to bid at least "three Aces"
if the current bid is "Aces", the opposite player can call "Dudo" or increase the quantity (e.g. "four Aces") or bid a different number, in which case the lower bound on the quantity is one more than double the previous quantity - for instance, from "three Aces", a player wishing to bid "Fours" would have to bid "Seven fours" or higher
if the player calls, it means that he does not believe the previous bid was correct. all dice are then shown and, if the guess is not correct, the player who made the bid loses a die. if it is correct, the player who called loses a die
after calling, a new round starts with the player that lost a die making the first bid
the player claims that the previous bidder’s bid is exactly right. if the number is higher or lower, the claimant loses the round; otherwise, the bidder loses the round
a "Spot-on" claim has a lower chance of being correct than a challenge, so a correct "Spot on" call has a greater reward - the player who made the bid loses a die and the win player regaining a previously lost die (if any)
when a player reaches one die (i.e. loses a round and goes from two dice to one), a Palifico round is played. during this round, the player makes an opening bid and his choice of die number cannot be changed. "Aces" are not wild during the round
for instance, the player who is down to one die may bid "two Fours", and the opposite player’s only options are to raise the quantity (to "three Fours" or higher), or to call
the game ends when only one player has dice remaining; that player is the winner