diff --git a/config.json b/config.json
index 16c96de..dea0e10 100644
--- a/config.json
+++ b/config.json
@@ -423,6 +423,14 @@
         "prerequisites": [],
         "difficulty": 7
       },
+      {
+        "slug": "yacht",
+        "name": "Yacht",
+        "uuid": "135ead8d-cd69-4336-a885-20e56359cea8",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 3
+      },
       {
         "slug": "pig-latin",
         "name": "Pig-Latin",
diff --git a/exercises/practice/yacht/.docs/instructions.md b/exercises/practice/yacht/.docs/instructions.md
new file mode 100644
index 0000000..519b7a6
--- /dev/null
+++ b/exercises/practice/yacht/.docs/instructions.md
@@ -0,0 +1,30 @@
+# Instructions
+
+Given five dice and a category, calculate the score of the dice for that category.
+
+~~~~exercism/note
+You'll always be presented with five dice.
+Each dice's value will be between one and six inclusively.
+The dice may be unordered.
+~~~~
+
+## Scores in Yacht
+
+| Category        | Score                  | Description                              | Example             |
+| --------------- | ---------------------- | ---------------------------------------- | ------------------- |
+| Ones            | 1 × number of ones     | Any combination                          | 1 1 1 4 5 scores 3  |
+| Twos            | 2 × number of twos     | Any combination                          | 2 2 3 4 5 scores 4  |
+| Threes          | 3 × number of threes   | Any combination                          | 3 3 3 3 3 scores 15 |
+| Fours           | 4 × number of fours    | Any combination                          | 1 2 3 3 5 scores 0  |
+| Fives           | 5 × number of fives    | Any combination                          | 5 1 5 2 5 scores 15 |
+| Sixes           | 6 × number of sixes    | Any combination                          | 2 3 4 5 6 scores 6  |
+| Full House      | Total of the dice      | Three of one number and two of another   | 3 3 3 5 5 scores 19 |
+| Four of a Kind  | Total of the four dice | At least four dice showing the same face | 4 4 4 4 6 scores 16 |
+| Little Straight | 30 points              | 1-2-3-4-5                                | 1 2 3 4 5 scores 30 |
+| Big Straight    | 30 points              | 2-3-4-5-6                                | 2 3 4 5 6 scores 30 |
+| Choice          | Sum of the dice        | Any combination                          | 2 3 3 4 6 scores 18 |
+| Yacht           | 50 points              | All five dice showing the same face      | 4 4 4 4 4 scores 50 |
+
+If the dice do **not** satisfy the requirements of a category, the score is zero.
+If, for example, _Four Of A Kind_ is entered in the _Yacht_ category, zero points are scored.
+A _Yacht_ scores zero if entered in the _Full House_ category.
diff --git a/exercises/practice/yacht/.docs/introduction.md b/exercises/practice/yacht/.docs/introduction.md
new file mode 100644
index 0000000..5b541f5
--- /dev/null
+++ b/exercises/practice/yacht/.docs/introduction.md
@@ -0,0 +1,11 @@
+# Introduction
+
+Each year, something new is "all the rage" in your high school.
+This year it is a dice game: [Yacht][yacht].
+
+The game of Yacht is from the same family as Poker Dice, Generala and particularly Yahtzee, of which it is a precursor.
+The game consists of twelve rounds.
+In each, five dice are rolled and the player chooses one of twelve categories.
+The chosen category is then used to score the throw of the dice.
+
+[yacht]: https://en.wikipedia.org/wiki/Yacht_(dice_game)
diff --git a/exercises/practice/yacht/.meta/config.json b/exercises/practice/yacht/.meta/config.json
new file mode 100644
index 0000000..cce01a7
--- /dev/null
+++ b/exercises/practice/yacht/.meta/config.json
@@ -0,0 +1,19 @@
+{
+  "authors": [
+    "SimaDovakin"
+  ],
+  "files": {
+    "solution": [
+      "yacht.u"
+    ],
+    "test": [
+      "yacht.test.u"
+    ],
+    "example": [
+      ".meta/examples/yacht.example.u"
+    ]
+  },
+  "blurb": "Score a single throw of dice in the game Yacht.",
+  "source": "James Kilfiger, using Wikipedia",
+  "source_url": "https://en.wikipedia.org/wiki/Yacht_(dice_game)"
+}
diff --git a/exercises/practice/yacht/.meta/examples/yacht.example.u b/exercises/practice/yacht/.meta/examples/yacht.example.u
new file mode 100644
index 0000000..7f75ff8
--- /dev/null
+++ b/exercises/practice/yacht/.meta/examples/yacht.example.u
@@ -0,0 +1,75 @@
+unique type yacht.Category
+  = Ones
+  | Twos
+  | Threes
+  | Fours
+  | Fives
+  | Sixes
+  | FullHouse
+  | FourOfAKind
+  | LittleStraight
+  | BigStraight
+  | Choice
+  | Yacht
+
+yacht.yacht : Category -> [Nat] -> Nat
+yacht.yacht category dice =
+  match category with
+    Ones -> calculateNumericCategories 1 dice
+    Twos -> calculateNumericCategories 2 dice
+    Threes -> calculateNumericCategories 3 dice
+    Fours -> calculateNumericCategories 4 dice
+    Fives -> calculateNumericCategories 5 dice
+    Sixes -> calculateNumericCategories 6 dice
+    FullHouse -> fullHouse dice
+    FourOfAKind -> fourOfAKind dice
+    LittleStraight -> littleStraight dice
+    BigStraight -> bigStraight dice
+    Choice -> sum dice
+    Yacht -> yacht' dice
+
+yacht.calculateNumericCategories : Nat -> [Nat] -> Nat
+yacht.calculateNumericCategories element dice = element * countElement element dice
+
+yacht.fullHouse : [Nat] -> Nat
+yacht.fullHouse dice =
+  diceFrequencies = frequencies dice
+  match values diceFrequencies with
+    [2, 3] -> sum dice
+    [3, 2] -> sum dice
+    _ -> 0
+
+yacht.fourOfAKind : [Nat] -> Nat
+yacht.fourOfAKind dice =
+  diceFrequencies = frequencies dice
+  match toList diceFrequencies with
+    [_, (die, 4)] -> die * 4
+    [(die, 4), _] -> die * 4
+    [(die, 5)] -> die * 4
+    _ -> 0
+
+yacht.littleStraight : [Nat] -> Nat
+yacht.littleStraight dice =
+  match List.sort dice with
+    [1, 2, 3, 4, 5] -> 30
+    _ -> 0
+
+yacht.bigStraight : [Nat] -> Nat
+yacht.bigStraight dice =
+  match List.sort dice with
+    [2, 3, 4, 5, 6] -> 30
+    _ -> 0
+
+yacht.yacht' : [Nat] -> Nat
+yacht.yacht' dice =
+  diceFrequencies = frequencies dice
+  match size diceFrequencies with
+    1 -> 50
+    _ -> 0
+
+yacht.frequencies : [Nat] -> Map Nat Nat
+yacht.frequencies =
+  updateFrequency = cases
+    Some die -> Some (die + 1)
+    None -> Some 1
+  List.foldLeft (acc die -> Map.alter updateFrequency die acc) Map.empty
diff --git a/exercises/practice/yacht/.meta/testAnnotation.json b/exercises/practice/yacht/.meta/testAnnotation.json
new file mode 100644
index 0000000..767612f
--- /dev/null
+++ b/exercises/practice/yacht/.meta/testAnnotation.json
@@ -0,0 +1,118 @@
+[
+  {
+    "name": "yacht.yacht.tests.ex1",
+    "test_code": "expect (50 == yacht.yacht Yacht [5, 5, 5, 5, 5])\n    |> Test.label \"Yacht\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex2",
+    "test_code": "expect (0 == yacht.yacht Yacht [1, 3, 3, 2, 5])\n    |> Test.label \"Not Yacht\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex3",
+    "test_code": "expect (3 == yacht.yacht Ones [1, 1, 1, 3, 5])\n    |> Test.label \"Ones\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex4",
+    "test_code": "expect (3 == yacht.yacht Ones [3, 1, 1, 5, 1])\n    |> Test.label \"Ones, out of order\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex5",
+    "test_code": "expect (0 == yacht.yacht Ones [4, 3, 6, 5, 5])\n    |> Test.label \"No ones\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex6",
+    "test_code": "expect (2 == yacht.yacht Twos [2, 3, 4, 5, 6])\n    |> Test.label \"Twos\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex7",
+    "test_code": "expect (8 == yacht.yacht Fours [1, 4, 1, 4, 1])\n    |> Test.label \"Fours\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex8",
+    "test_code": "expect (15 == yacht.yacht Threes [3, 3, 3, 3, 3])\n    |> Test.label \"Yacht counted as threes\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex9",
+    "test_code": "expect (0 == yacht.yacht Fives [3, 3, 3, 3, 3])\n    |> Test.label \"Yacht of 3s counted as fives\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex10",
+    "test_code": "expect (10 == yacht.yacht Fives [1, 5, 3, 5, 3])\n    |> Test.label \"Fives\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex11",
+    "test_code": "expect (6 == yacht.yacht Sixes [2, 3, 4, 5, 6])\n    |> Test.label \"Sixes\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex12",
+    "test_code": "expect (16 == yacht.yacht FullHouse [2, 2, 4, 4, 4])\n    |> Test.label \"Full house two small, three big\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex13",
+    "test_code": "expect (19 == yacht.yacht FullHouse [5, 3, 3, 5, 3])\n    |> Test.label \"Full house three small, two big\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex14",
+    "test_code": "expect (0 == yacht.yacht FullHouse [2, 2, 4, 4, 5])\n    |> Test.label \"Two pair is not a full house\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex15",
+    "test_code": "expect (0 == yacht.yacht FullHouse [1, 4, 4, 4, 4])\n    |> Test.label \"Four of a kind is not a full house\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex16",
+    "test_code": "expect (0 == yacht.yacht FullHouse [2, 2, 2, 2, 2])\n    |> Test.label \"Yacht is not a full house\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex17",
+    "test_code": "expect (24 == yacht.yacht FourOfAKind [6, 6, 4, 6, 6])\n    |> Test.label \"Four of a Kind\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex18",
+    "test_code": "expect (12 == yacht.yacht FourOfAKind [3, 3, 3, 3, 3])\n    |> Test.label \"Yacht can be scored as Four of a Kind\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex19",
+    "test_code": "expect (0 == yacht.yacht FourOfAKind [3, 3, 3, 5, 5])\n    |> Test.label \"Full house is not Four of a Kind\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex20",
+    "test_code": "expect (30 == yacht.yacht LittleStraight [3, 5, 4, 1, 2])\n    |> Test.label \"Little Straight\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex21",
+    "test_code": "expect (0 == yacht.yacht BigStraight [1, 2, 3, 4, 5])\n    |> Test.label \"Little Straight as Big Straight\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex22",
+    "test_code": "expect (0 == yacht.yacht LittleStraight [1, 1, 2, 3, 4])\n    |> Test.label \"Four in order but not a little straight\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex23",
+    "test_code": "expect (0 == yacht.yacht LittleStraight [1, 2, 3, 4, 6])\n    |> Test.label \"No pairs but not a little straight\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex24",
+    "test_code": "expect (0 == yacht.yacht LittleStraight [1, 1, 3, 4, 5])\n    |> Test.label \"Minimum is 1, maximum is 5, but not a little straight\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex25",
+    "test_code": "expect (30 == yacht.yacht BigStraight [4, 6, 2, 5, 3])\n    |> Test.label \"Big Straight\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex26",
+    "test_code": "expect (0 == yacht.yacht LittleStraight [6, 5, 4, 3, 2])\n    |> Test.label \"Big Straight as little straight\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex27",
+    "test_code": "expect (0 == yacht.yacht BigStraight [6, 5, 4, 3, 1])\n    |> Test.label \"No pairs but not a big straight\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex28",
+    "test_code": "expect (23 == yacht.yacht Choice [3, 3, 5, 6, 6])\n    |> Test.label \"Choice\""
+  },
+  {
+    "name": "yacht.yacht.tests.ex29",
+    "test_code": "expect (10 == yacht.yacht Choice [2, 2, 2, 2, 2])\n    |> Test.label \"Yacht as choice\""
+  }
+]
\ No newline at end of file
diff --git a/exercises/practice/yacht/.meta/testLoader.md b/exercises/practice/yacht/.meta/testLoader.md
new file mode 100644
index 0000000..b916171
--- /dev/null
+++ b/exercises/practice/yacht/.meta/testLoader.md
@@ -0,0 +1,9 @@
+# Testing transcript for yacht exercise
+
+```ucm
+.> load ./yacht.u
+.> add
+.> load ./yacht.test.u
+.> add
+.> move.term yacht.tests tests
+```
diff --git a/exercises/practice/yacht/.meta/tests.toml b/exercises/practice/yacht/.meta/tests.toml
new file mode 100644
index 0000000..b9d9203
--- /dev/null
+++ b/exercises/practice/yacht/.meta/tests.toml
@@ -0,0 +1,97 @@
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
+
+[3060e4a5-4063-4deb-a380-a630b43a84b6]
+description = "Yacht"
+
+[15026df2-f567-482f-b4d5-5297d57769d9]
+description = "Not Yacht"
+
+[36b6af0c-ca06-4666-97de-5d31213957a4]
+description = "Ones"
+
+[023a07c8-6c6e-44d0-bc17-efc5e1b8205a]
+description = "Ones, out of order"
+
+[7189afac-cccd-4a74-8182-1cb1f374e496]
+description = "No ones"
+
+[793c4292-dd14-49c4-9707-6d9c56cee725]
+description = "Twos"
+
+[dc41bceb-d0c5-4634-a734-c01b4233a0c6]
+description = "Fours"
+
+[f6125417-5c8a-4bca-bc5b-b4b76d0d28c8]
+description = "Yacht counted as threes"
+
+[464fc809-96ed-46e4-acb8-d44e302e9726]
+description = "Yacht of 3s counted as fives"
+
+[d054227f-3a71-4565-a684-5c7e621ec1e9]
+description = "Fives"
+
+[e8a036e0-9d21-443a-8b5f-e15a9e19a761]
+description = "Sixes"
+
+[51cb26db-6b24-49af-a9ff-12f53b252eea]
+description = "Full house two small, three big"
+
+[1822ca9d-f235-4447-b430-2e8cfc448f0c]
+description = "Full house three small, two big"
+
+[b208a3fc-db2e-4363-a936-9e9a71e69c07]
+description = "Two pair is not a full house"
+
+[b90209c3-5956-445b-8a0b-0ac8b906b1c2]
+description = "Four of a kind is not a full house"
+
+[32a3f4ee-9142-4edf-ba70-6c0f96eb4b0c]
+description = "Yacht is not a full house"
+
+[b286084d-0568-4460-844a-ba79d71d79c6]
+description = "Four of a Kind"
+
+[f25c0c90-5397-4732-9779-b1e9b5f612ca]
+description = "Yacht can be scored as Four of a Kind"
+
+[9f8ef4f0-72bb-401a-a871-cbad39c9cb08]
+description = "Full house is not Four of a Kind"
+
+[b4743c82-1eb8-4a65-98f7-33ad126905cd]
+description = "Little Straight"
+
+[7ac08422-41bf-459c-8187-a38a12d080bc]
+description = "Little Straight as Big Straight"
+
+[97bde8f7-9058-43ea-9de7-0bc3ed6d3002]
+description = "Four in order but not a little straight"
+
+[cef35ff9-9c5e-4fd2-ae95-6e4af5e95a99]
+description = "No pairs but not a little straight"
+
+[fd785ad2-c060-4e45-81c6-ea2bbb781b9d]
+description = "Minimum is 1, maximum is 5, but not a little straight"
+
+[35bd74a6-5cf6-431a-97a3-4f713663f467]
+description = "Big Straight"
+
+[87c67e1e-3e87-4f3a-a9b1-62927822b250]
+description = "Big Straight as little straight"
+
+[c1fa0a3a-40ba-4153-a42d-32bc34d2521e]
+description = "No pairs but not a big straight"
+
+[207e7300-5d10-43e5-afdd-213e3ac8827d]
+description = "Choice"
+
+[b524c0cf-32d2-4b40-8fb3-be3500f3f135]
+description = "Yacht as choice"
diff --git a/exercises/practice/yacht/yacht.test.u b/exercises/practice/yacht/yacht.test.u
new file mode 100644
index 0000000..923a9a6
--- /dev/null
+++ b/exercises/practice/yacht/yacht.test.u
@@ -0,0 +1,147 @@
+yacht.yacht.tests.ex1 =
+  expect (50 == yacht.yacht Yacht [5, 5, 5, 5, 5])
+    |> Test.label "Yacht"
+
+yacht.yacht.tests.ex2 =
+  expect (0 == yacht.yacht Yacht [1, 3, 3, 2, 5])
+    |> Test.label "Not Yacht"
+
+yacht.yacht.tests.ex3 =
+  expect (3 == yacht.yacht Ones [1, 1, 1, 3, 5])
+    |> Test.label "Ones"
+
+yacht.yacht.tests.ex4 =
+  expect (3 == yacht.yacht Ones [3, 1, 1, 5, 1])
+    |> Test.label "Ones, out of order"
+
+yacht.yacht.tests.ex5 =
+  expect (0 == yacht.yacht Ones [4, 3, 6, 5, 5])
+    |> Test.label "No ones"
+
+yacht.yacht.tests.ex6 =
+  expect (2 == yacht.yacht Twos [2, 3, 4, 5, 6])
+    |> Test.label "Twos"
+
+yacht.yacht.tests.ex7 =
+  expect (8 == yacht.yacht Fours [1, 4, 1, 4, 1])
+    |> Test.label "Fours"
+
+yacht.yacht.tests.ex8 =
+  expect (15 == yacht.yacht Threes [3, 3, 3, 3, 3])
+    |> Test.label "Yacht counted as threes"
+
+yacht.yacht.tests.ex9 =
+  expect (0 == yacht.yacht Fives [3, 3, 3, 3, 3])
+    |> Test.label "Yacht of 3s counted as fives"
+
+yacht.yacht.tests.ex10 =
+  expect (10 == yacht.yacht Fives [1, 5, 3, 5, 3])
+    |> Test.label "Fives"
+
+yacht.yacht.tests.ex11 =
+  expect (6 == yacht.yacht Sixes [2, 3, 4, 5, 6])
+    |> Test.label "Sixes"
+
+yacht.yacht.tests.ex12 =
+  expect (16 == yacht.yacht FullHouse [2, 2, 4, 4, 4])
+    |> Test.label "Full house two small, three big"
+
+yacht.yacht.tests.ex13 =
+  expect (19 == yacht.yacht FullHouse [5, 3, 3, 5, 3])
+    |> Test.label "Full house three small, two big"
+
+yacht.yacht.tests.ex14 =
+  expect (0 == yacht.yacht FullHouse [2, 2, 4, 4, 5])
+    |> Test.label "Two pair is not a full house"
+
+yacht.yacht.tests.ex15 =
+  expect (0 == yacht.yacht FullHouse [1, 4, 4, 4, 4])
+    |> Test.label "Four of a kind is not a full house"
+
+yacht.yacht.tests.ex16 =
+  expect (0 == yacht.yacht FullHouse [2, 2, 2, 2, 2])
+    |> Test.label "Yacht is not a full house"
+
+yacht.yacht.tests.ex17 =
+  expect (24 == yacht.yacht FourOfAKind [6, 6, 4, 6, 6])
+    |> Test.label "Four of a Kind"
+
+yacht.yacht.tests.ex18 =
+  expect (12 == yacht.yacht FourOfAKind [3, 3, 3, 3, 3])
+    |> Test.label "Yacht can be scored as Four of a Kind"
+
+yacht.yacht.tests.ex19 =
+  expect (0 == yacht.yacht FourOfAKind [3, 3, 3, 5, 5])
+    |> Test.label "Full house is not Four of a Kind"
+
+yacht.yacht.tests.ex20 =
+  expect (30 == yacht.yacht LittleStraight [3, 5, 4, 1, 2])
+    |> Test.label "Little Straight"
+
+yacht.yacht.tests.ex21 =
+  expect (0 == yacht.yacht BigStraight [1, 2, 3, 4, 5])
+    |> Test.label "Little Straight as Big Straight"
+
+yacht.yacht.tests.ex22 =
+  expect (0 == yacht.yacht LittleStraight [1, 1, 2, 3, 4])
+    |> Test.label "Four in order but not a little straight"
+
+yacht.yacht.tests.ex23 =
+  expect (0 == yacht.yacht LittleStraight [1, 2, 3, 4, 6])
+    |> Test.label "No pairs but not a little straight"
+
+yacht.yacht.tests.ex24 =
+  expect (0 == yacht.yacht LittleStraight [1, 1, 3, 4, 5])
+    |> Test.label "Minimum is 1, maximum is 5, but not a little straight"
+
+yacht.yacht.tests.ex25 =
+  expect (30 == yacht.yacht BigStraight [4, 6, 2, 5, 3])
+    |> Test.label "Big Straight"
+
+yacht.yacht.tests.ex26 =
+  expect (0 == yacht.yacht LittleStraight [6, 5, 4, 3, 2])
+    |> Test.label "Big Straight as little straight"
+
+yacht.yacht.tests.ex27 =
+  expect (0 == yacht.yacht BigStraight [6, 5, 4, 3, 1])
+    |> Test.label "No pairs but not a big straight"
+
+yacht.yacht.tests.ex28 =
+  expect (23 == yacht.yacht Choice [3, 3, 5, 6, 6])
+    |> Test.label "Choice"
+
+yacht.yacht.tests.ex29 =
+  expect (10 == yacht.yacht Choice [2, 2, 2, 2, 2])
+    |> Test.label "Yacht as choice"
+
+test> yacht.tests = runAll [
+  yacht.yacht.tests.ex1,
+  yacht.yacht.tests.ex2,
+  yacht.yacht.tests.ex3,
+  yacht.yacht.tests.ex4,
+  yacht.yacht.tests.ex5,
+  yacht.yacht.tests.ex6,
+  yacht.yacht.tests.ex7,
+  yacht.yacht.tests.ex8,
+  yacht.yacht.tests.ex9,
+  yacht.yacht.tests.ex10,
+  yacht.yacht.tests.ex11,
+  yacht.yacht.tests.ex12,
+  yacht.yacht.tests.ex13,
+  yacht.yacht.tests.ex14,
+  yacht.yacht.tests.ex15,
+  yacht.yacht.tests.ex16,
+  yacht.yacht.tests.ex17,
+  yacht.yacht.tests.ex18,
+  yacht.yacht.tests.ex19,
+  yacht.yacht.tests.ex20,
+  yacht.yacht.tests.ex21,
+  yacht.yacht.tests.ex22,
+  yacht.yacht.tests.ex23,
+  yacht.yacht.tests.ex24,
+  yacht.yacht.tests.ex25,
+  yacht.yacht.tests.ex26,
+  yacht.yacht.tests.ex27,
+  yacht.yacht.tests.ex28,
+  yacht.yacht.tests.ex29
+]
diff --git a/exercises/practice/yacht/yacht.u b/exercises/practice/yacht/yacht.u
new file mode 100644
index 0000000..ce8ab37
--- /dev/null
+++ b/exercises/practice/yacht/yacht.u
@@ -0,0 +1,16 @@
+unique type yacht.Category
+  = Ones
+  | Twos
+  | Threes
+  | Fours
+  | Fives
+  | Sixes
+  | FullHouse
+  | FourOfAKind
+  | LittleStraight
+  | BigStraight
+  | Choice
+  | Yacht
+
+yacht.yacht : Categoty -> [Nat] -> Nat
+yacht.yacht = todo "implement yacht"