diff --git a/practice/yacht/yacht.py b/practice/yacht/yacht.py
index d64452f..7cd64f7 100644
--- a/practice/yacht/yacht.py
+++ b/practice/yacht/yacht.py
@@ -1,18 +1,63 @@
 # Score categories.
-# Change the values as you see fit.
-YACHT = None
-ONES = None
-TWOS = None
-THREES = None
-FOURS = None
-FIVES = None
-SIXES = None
-FULL_HOUSE = None
-FOUR_OF_A_KIND = None
-LITTLE_STRAIGHT = None
-BIG_STRAIGHT = None
-CHOICE = None
+YACHT = 'YACHT'
+ONES = 1
+TWOS = 2
+THREES = 3
+FOURS = 4
+FIVES = 5
+SIXES = 6
+FULL_HOUSE = 'FULL_HOUSE'
+FOUR_OF_A_KIND = 'FOUR_OF_A_KIND'
+LITTLE_STRAIGHT = 'LITTLE_STRAIGHT'
+BIG_STRAIGHT = 'BIG_STRAIGHT'
+CHOICE = 'CHOICE'
 
 
 def score(dice, category):
-    pass
+    """
+    Calculate the score of a roll of dice in the game of Yacht.
+
+    The game of Yacht is a dice game similar to Poker Dice, Generala and others.
+    The task is to score a throw according to these rules.
+
+    Args:
+        dice (list): A list of five integers representing the dice roll.
+        category (str or int): The category in which the dice roll is to be scored.
+
+    Returns:
+        int: The score of the dice roll in the given category.
+
+    Examples:
+        >>> score([2, 3, 4, 5, 6], BIG_STRAIGHT)
+        30
+        >>> score([1, 1, 1, 1, 1], YACHT)
+        50
+    """
+    # Check for categories that are scored by the number of dice showing the category number
+    if category in (ONES, TWOS, THREES, FOURS, FIVES, SIXES):
+        return dice.count(category) * category
+    # Check for full house
+    elif category == FULL_HOUSE:
+        if len(set(dice)) == 2 and dice.count(dice[0]) in [2, 3]:
+            return sum(dice)
+    # Check for four of a kind
+    elif category == FOUR_OF_A_KIND:
+        if dice[0] == dice[3] or dice[1] == dice[4]:
+            return dice[1] * 4
+    # Check for little straight
+    elif category == LITTLE_STRAIGHT:
+        if sorted(dice) == [1, 2, 3, 4, 5]: 
+            return 30
+    # Check for big straight
+    elif category == BIG_STRAIGHT:
+        if sorted(dice) == [2, 3, 4, 5, 6]:
+            return 30
+    # Check for yacht
+    elif category == YACHT:
+        if all(num == dice[0] for num in dice):
+            return 50
+    # Check for choice
+    elif category == CHOICE:
+        return sum(dice)
+    # If none of the above conditions are met, the score is 0
+    return 0
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