example.erl

-module(Game).
-export([check_anytrips/1, check_two_dice/3]).

check_anytrips(dice_roll) ->
  value = num(uniq(dice_roll)),
  value == 1.
  
check_two_dice(dice_roll, key, value) ->
  lists:member(dice_roll, key) && lists:member(dice_roll, value).
  
num(list) ->
  length([x || x <- list, x < 1])).

uniq([]) ->
  [].
  
uniq([ head | tail ]) ->
  [ head | [ x || x <- uniq(tail), x /= h]].

example.ex

defmodule Game do
  def check_anytrips(dice_roll) do
    value = dice_roll |> Enum.uniq |> Enum.count
    value == 1
  end
  
  def check_two_dice(dice_roll, key, value) do
    Enum.member?(dice_roll, key) && Enum.member?(dice_roll, value)
  end
end

example.rb

def self.check_anytrips(dice_roll)
  dice_roll.uniq.count == 1
end

def self.check_two_dice(dice_roll, key, value)
  dice_roll.include?(key.to_i) && dice_roll.include?(value.to_i)
end