Pirates Dice

The goal of this game is to guess how many dices there are of a number, you pick and be the last one left with dices.Rules:You always have to raise (if you say 4 fours the next one will have to say 4 of anything more than 4 or 5 of anything)Pirates count as 2 ( if someone says 8 fives you can say 4 Pirates, but if someone says 4 Pirates you will have to raise it and double it)If someone only has one dice left you cant change the dice of the start bidding (if the first bid is 4 fives you have to say 5 fives or more)If you dont believe the bid before you, you say raise ,the round stops and you count if you were right or not, if not you lose a stone, else the one before you loses a stone.