Dobbelduel (Dice Duel) is a code-breaking game similar to Mastermind. At the start of the game, one of the players creates a random code by rolling four dice. The other player has to guess this code. He gets seven rounds to gather information. At the start of each round, he rolls four dice, then uses some or all of them to create a (partial) code. He then receives feedback on this code, being told how many dice are equal to the corresponding die in the code, how many are higher and how many are lower. When he thinks he has guessed the code, or after he has used up his seven rounds, he makes a guess. If this guess is correct, he scores a number of points, depending on the amount of rounds and dice used. After this, the rolls are reveresed, and the other player has to break a code. The player with the highest score wins.