diff --git a/config.json b/config.json
index 5743640..3a32a3c 100644
--- a/config.json
+++ b/config.json
@@ -902,6 +902,14 @@
           "math"
         ]
       },
+      {
+        "slug": "prism",
+        "name": "Prism",
+        "uuid": "bd71935a-a63a-4be3-b0ec-982240515b59",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 4
+      },
       {
         "slug": "robot-name",
         "name": "Robot Name",
diff --git a/exercises/practice/prism/.busted b/exercises/practice/prism/.busted
new file mode 100644
index 0000000..86b84e7
--- /dev/null
+++ b/exercises/practice/prism/.busted
@@ -0,0 +1,5 @@
+return {
+  default = {
+    ROOT = { '.' }
+  }
+}
diff --git a/exercises/practice/prism/.docs/instructions.md b/exercises/practice/prism/.docs/instructions.md
new file mode 100644
index 0000000..a68c80d
--- /dev/null
+++ b/exercises/practice/prism/.docs/instructions.md
@@ -0,0 +1,36 @@
+# Instructions
+
+Before activating the laser array, you must predict the exact order in which crystals will be hit, identified by their sample IDs.
+
+## Example Test Case
+
+Consider this crystal array configuration:
+
+```json
+{
+  "start": { "x": 0, "y": 0, "angle": 0 },
+  "prisms": [
+    { "id": 3, "x": 30, "y": 10, "angle": 45 },
+    { "id": 1, "x": 10, "y": 10, "angle": -90 },
+    { "id": 2, "x": 10, "y": 0, "angle": 90 },
+    { "id": 4, "x": 20, "y": 0, "angle": 0 }
+  ]
+}
+```
+
+## What's Happening
+
+The laser starts at the origin `(0, 0)` and fires horizontally to the right at angle 0°.
+Here's the step-by-step beam path:
+
+**Step 1**: The beam travels along the x-axis (y = 0) and first encounters **Crystal #2** at position `(10, 0)`.
+This crystal has a refraction angle of 90°, which means it bends the beam perpendicular to its current path.
+The beam, originally traveling at 0°, is now redirected to 90° (straight up).
+
+**Step 2**: The beam now travels vertically upward from position `(10, 0)` and strikes **Crystal #1** at position `(10, 10)`.
+This crystal has a refraction angle of -90°, bending the beam by -90° relative to its current direction.
+The beam was traveling at 90°, so after refraction it's now at 0° (90° + (-90°) = 0°), traveling horizontally to the right again.
+
+**Step 3**: From position `(10, 10)`, the beam travels horizontally and encounters **Crystal #3** at position `(30, 10)`.
+This crystal refracts the beam by 45°, changing its direction to 45°.
+The beam continues into empty space beyond the array.
diff --git a/exercises/practice/prism/.docs/introduction.md b/exercises/practice/prism/.docs/introduction.md
new file mode 100644
index 0000000..bfa7ed7
--- /dev/null
+++ b/exercises/practice/prism/.docs/introduction.md
@@ -0,0 +1,5 @@
+# Introduction
+
+You're a researcher at **PRISM** (Precariously Redirected Illumination Safety Management), working with a precision laser calibration system that tests experimental crystal prisms.
+These crystals are being developed for next-generation optical computers, and each one has unique refractive properties based on its molecular structure.
+The lab's laser system can damage crystals if they receive unexpected illumination, so precise path prediction is critical.
diff --git a/exercises/practice/prism/.meta/config.json b/exercises/practice/prism/.meta/config.json
new file mode 100644
index 0000000..cd34901
--- /dev/null
+++ b/exercises/practice/prism/.meta/config.json
@@ -0,0 +1,19 @@
+{
+  "authors": [
+    "BNAndras"
+  ],
+  "files": {
+    "solution": [
+      "prism.lua"
+    ],
+    "test": [
+      "prism_spec.lua"
+    ],
+    "example": [
+      ".meta/example.lua"
+    ]
+  },
+  "blurb": "Calculate the path of a laser through reflective prisms.",
+  "source": "FraSanga",
+  "source_url": "https://github.com/exercism/problem-specifications/pull/2625"
+}
diff --git a/exercises/practice/prism/.meta/example.lua b/exercises/practice/prism/.meta/example.lua
new file mode 100644
index 0000000..ab3312f
--- /dev/null
+++ b/exercises/practice/prism/.meta/example.lua
@@ -0,0 +1,45 @@
+local function find_sequence(start, prisms)
+  local x, y, angle = start.x, start.y, start.angle
+  local sequence = {}
+
+  while true do
+    local rad = angle * math.pi / 180
+    local dirX = math.cos(rad)
+    local dirY = math.sin(rad)
+
+    local nearest = nil
+    local nearestDist = math.huge
+
+    for _, prism in ipairs(prisms) do
+      local dx = prism.x - x
+      local dy = prism.y - y
+
+      local dist = dx * dirX + dy * dirY
+      -- ignore prisms behind or at the start
+      if dist > 1e-6 then
+        local crossSq = (dx - dist * dirX) ^ 2 + (dy - dist * dirY) ^ 2
+
+        -- Bail if outside relative tolerance (more wiggle room for further prisms)
+        if crossSq < 1e-6 * math.max(1, dist * dist) then
+          if dist < nearestDist then
+            nearestDist = dist
+            nearest = prism
+          end
+        end
+      end
+    end
+
+    if not nearest then
+      break
+    end
+
+    table.insert(sequence, nearest.id)
+    x = nearest.x
+    y = nearest.y
+    angle = (angle + nearest.angle) % 360
+  end
+
+  return sequence
+end
+
+return { find_sequence = find_sequence }
diff --git a/exercises/practice/prism/.meta/spec_generator.lua b/exercises/practice/prism/.meta/spec_generator.lua
new file mode 100644
index 0000000..7aec349
--- /dev/null
+++ b/exercises/practice/prism/.meta/spec_generator.lua
@@ -0,0 +1,45 @@
+return {
+  module_name = 'prism',
+
+  generate_test = function(case)
+    local lines = {}
+
+    local function snake_case(str)
+      local s = str:gsub('%u', function(c)
+        return '_' .. c:lower()
+      end)
+      if s:sub(1, 1) == '_' then
+        s = s:sub(2)
+      end
+      return s
+    end
+
+    table.insert(lines,
+                 string.format("local start = { x = %s, y = %s, angle = %s }", case.input.start.x, case.input.start.y,
+                               case.input.start.angle))
+
+    if #case.input.prisms == 0 then
+      table.insert(lines, "local prisms = {}")
+    else
+      table.insert(lines, "local prisms = {")
+      for _, prism in ipairs(case.input.prisms) do
+        table.insert(lines, string.format("  { id = %s, x = %s, y = %s, angle = %s },", prism.id, prism.x, prism.y,
+                                          prism.angle))
+      end
+      table.insert(lines, "}")
+    end
+
+    local expected = ""
+    if #case.expected.sequence == 0 then
+      expected = "{}"
+    else
+      expected = string.format("{ %s }", table.concat(case.expected.sequence, ", "))
+    end
+
+    table.insert(lines, string.format("local expected = %s", expected))
+    table.insert(lines, string.format("local result = prism.%s(start, prisms)", snake_case(case.property)))
+    table.insert(lines, "assert.are.same(expected, result)")
+
+    return table.concat(lines, "\n")
+  end
+}
diff --git a/exercises/practice/prism/.meta/tests.toml b/exercises/practice/prism/.meta/tests.toml
new file mode 100644
index 0000000..b002223
--- /dev/null
+++ b/exercises/practice/prism/.meta/tests.toml
@@ -0,0 +1,52 @@
+# 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.
+
+[ec65d3b3-f7bf-4015-8156-0609c141c4c4]
+description = "zero prisms"
+
+[ec0ca17c-0c5f-44fb-89ba-b76395bdaf1c]
+description = "one prism one hit"
+
+[0db955f2-0a27-4c82-ba67-197bd6202069]
+description = "one prism zero hits"
+
+[8d92485b-ebc0-4ee9-9b88-cdddb16b52da]
+description = "going up zero hits"
+
+[78295b3c-7438-492d-8010-9c63f5c223d7]
+description = "going down zero hits"
+
+[acc723ea-597b-4a50-8d1b-b980fe867d4c]
+description = "going left zero hits"
+
+[3f19b9df-9eaa-4f18-a2db-76132f466d17]
+description = "negative angle"
+
+[96dacffb-d821-4cdf-aed8-f152ce063195]
+description = "large angle"
+
+[513a7caa-957f-4c5d-9820-076842de113c]
+description = "upward refraction two hits"
+
+[d452b7c7-9761-4ea9-81a9-2de1d73eb9ef]
+description = "downward refraction two hits"
+
+[be1a2167-bf4c-4834-acc9-e4d68e1a0203]
+description = "same prism twice"
+
+[df5a60dd-7c7d-4937-ac4f-c832dae79e2e]
+description = "simple path"
+
+[8d9a3cc8-e846-4a3b-a137-4bfc4aa70bd1]
+description = "multiple prisms floating point precision"
+
+[e077fc91-4e4a-46b3-a0f5-0ba00321da56]
+description = "complex path with multiple prisms floating point precision"
diff --git a/exercises/practice/prism/prism.lua b/exercises/practice/prism/prism.lua
new file mode 100644
index 0000000..ad5810e
--- /dev/null
+++ b/exercises/practice/prism/prism.lua
@@ -0,0 +1,5 @@
+local function find_sequence(start, prisms)
+
+end
+
+return { find_sequence = find_sequence }
diff --git a/exercises/practice/prism/prism_spec.lua b/exercises/practice/prism/prism_spec.lua
new file mode 100644
index 0000000..90b7d20
--- /dev/null
+++ b/exercises/practice/prism/prism_spec.lua
@@ -0,0 +1,368 @@
+local prism = require('prism')
+
+describe('prism', function()
+  it('zero prisms', function()
+    local start = { x = 0, y = 0, angle = 0 }
+    local prisms = {}
+    local expected = {}
+    local result = prism.find_sequence(start, prisms)
+    assert.are.same(expected, result)
+  end)
+
+  it('one prism one hit', function()
+    local start = { x = 0, y = 0, angle = 0 }
+    local prisms = { { id = 1, x = 10, y = 0, angle = 0 } }
+    local expected = { 1 }
+    local result = prism.find_sequence(start, prisms)
+    assert.are.same(expected, result)
+  end)
+
+  it('one prism zero hits', function()
+    local start = { x = 0, y = 0, angle = 0 }
+    local prisms = { { id = 1, x = -10, y = 0, angle = 0 } }
+    local expected = {}
+    local result = prism.find_sequence(start, prisms)
+    assert.are.same(expected, result)
+  end)
+
+  it('going up zero hits', function()
+    local start = { x = 0, y = 0, angle = 90 }
+    local prisms = {
+      { id = 3, x = 0, y = -10, angle = 0 },
+      { id = 1, x = -10, y = 0, angle = 0 },
+      { id = 2, x = 10, y = 0, angle = 0 }
+    }
+    local expected = {}
+    local result = prism.find_sequence(start, prisms)
+    assert.are.same(expected, result)
+  end)
+
+  it('going down zero hits', function()
+    local start = { x = 0, y = 0, angle = -90 }
+    local prisms = {
+      { id = 1, x = 10, y = 0, angle = 0 },
+      { id = 2, x = 0, y = 10, angle = 0 },
+      { id = 3, x = -10, y = 0, angle = 0 }
+    }
+    local expected = {}
+    local result = prism.find_sequence(start, prisms)
+    assert.are.same(expected, result)
+  end)
+
+  it('going left zero hits', function()
+    local start = { x = 0, y = 0, angle = 180 }
+    local prisms = {
+      { id = 2, x = 0, y = 10, angle = 0 },
+      { id = 3, x = 10, y = 0, angle = 0 },
+      { id = 1, x = 0, y = -10, angle = 0 }
+    }
+    local expected = {}
+    local result = prism.find_sequence(start, prisms)
+    assert.are.same(expected, result)
+  end)
+
+  it('negative angle', function()
+    local start = { x = 0, y = 0, angle = -180 }
+    local prisms = {
+      { id = 1, x = 0, y = -10, angle = 0 },
+      { id = 2, x = 0, y = 10, angle = 0 },
+      { id = 3, x = 10, y = 0, angle = 0 }
+    }
+    local expected = {}
+    local result = prism.find_sequence(start, prisms)
+    assert.are.same(expected, result)
+  end)
+
+  it('large angle', function()
+    local start = { x = 0, y = 0, angle = 2340 }
+    local prisms = { { id = 1, x = 10, y = 0, angle = 0 } }
+    local expected = {}
+    local result = prism.find_sequence(start, prisms)
+    assert.are.same(expected, result)
+  end)
+
+  it('upward refraction two hits', function()
+    local start = { x = 0, y = 0, angle = 0 }
+    local prisms = { { id = 1, x = 10, y = 10, angle = 0 }, { id = 2, x = 10, y = 0, angle = 90 } }
+    local expected = { 2, 1 }
+    local result = prism.find_sequence(start, prisms)
+    assert.are.same(expected, result)
+  end)
+
+  it('downward refraction two hits', function()
+    local start = { x = 0, y = 0, angle = 0 }
+    local prisms = { { id = 1, x = 10, y = 0, angle = -90 }, { id = 2, x = 10, y = -10, angle = 0 } }
+    local expected = { 1, 2 }
+    local result = prism.find_sequence(start, prisms)
+    assert.are.same(expected, result)
+  end)
+
+  it('same prism twice', function()
+    local start = { x = 0, y = 0, angle = 0 }
+    local prisms = { { id = 2, x = 10, y = 0, angle = 0 }, { id = 1, x = 20, y = 0, angle = -180 } }
+    local expected = { 2, 1, 2 }
+    local result = prism.find_sequence(start, prisms)
+    assert.are.same(expected, result)
+  end)
+
+  it('simple path', function()
+    local start = { x = 0, y = 0, angle = 0 }
+    local prisms = {
+      { id = 3, x = 30, y = 10, angle = 45 },
+      { id = 1, x = 10, y = 10, angle = -90 },
+      { id = 2, x = 10, y = 0, angle = 90 },
+      { id = 4, x = 20, y = 0, angle = 0 }
+    }
+    local expected = { 2, 1, 3 }
+    local result = prism.find_sequence(start, prisms)
+    assert.are.same(expected, result)
+  end)
+
+  it('multiple prisms floating point precision', function()
+    local start = { x = 0, y = 0, angle = -6.429 }
+    local prisms = {
+      { id = 26, x = 5.8, y = 73.4, angle = 6.555 },
+      { id = 24, x = 36.2, y = 65.2, angle = -0.304 },
+      { id = 20, x = 20.4, y = 82.8, angle = 45.17 },
+      { id = 31, x = -20.2, y = 48.8, angle = 30.615 },
+      { id = 30, x = 24.0, y = 0.6, angle = 28.771 },
+      { id = 29, x = 31.4, y = 79.4, angle = 61.327 },
+      { id = 28, x = 36.4, y = 31.4, angle = -18.157 },
+      { id = 22, x = 47.0, y = 57.8, angle = 54.745 },
+      { id = 38, x = 36.4, y = 79.2, angle = 49.05 },
+      { id = 10, x = 37.8, y = 55.2, angle = 11.978 },
+      { id = 18, x = -26.0, y = 42.6, angle = 22.661 },
+      { id = 25, x = 38.8, y = 76.2, angle = 51.958 },
+      { id = 2, x = 0.0, y = 42.4, angle = -21.817 },
+      { id = 35, x = 21.4, y = 44.8, angle = -171.579 },
+      { id = 7, x = 14.2, y = -1.6, angle = 19.081 },
+      { id = 33, x = 11.2, y = 44.4, angle = -165.941 },
+      { id = 11, x = 15.4, y = 82.6, angle = 66.262 },
+      { id = 16, x = 30.8, y = 6.6, angle = 35.852 },
+      { id = 15, x = -3.0, y = 79.2, angle = 53.782 },
+      { id = 4, x = 29.0, y = 75.4, angle = 17.016 },
+      { id = 23, x = 41.6, y = 59.8, angle = 70.763 },
+      { id = 8, x = -10.0, y = 15.8, angle = -9.24 },
+      { id = 13, x = 48.6, y = 51.8, angle = 45.812 },
+      { id = 1, x = 13.2, y = 77.0, angle = 17.937 },
+      { id = 34, x = -8.8, y = 36.8, angle = -4.199 },
+      { id = 21, x = 24.4, y = 75.8, angle = 20.783 },
+      { id = 17, x = -4.4, y = 74.6, angle = 24.709 },
+      { id = 9, x = 30.8, y = 41.8, angle = -165.413 },
+      { id = 32, x = 4.2, y = 78.6, angle = 40.892 },
+      { id = 37, x = -15.8, y = 47.0, angle = 33.29 },
+      { id = 6, x = 1.0, y = 80.6, angle = 51.295 },
+      { id = 36, x = -27.0, y = 47.8, angle = 92.52 },
+      { id = 14, x = -2.0, y = 34.4, angle = -52.001 },
+      { id = 5, x = 23.2, y = 80.2, angle = 31.866 },
+      { id = 27, x = -5.6, y = 32.8, angle = -75.303 },
+      { id = 12, x = -1.0, y = 0.2, angle = 0.0 },
+      { id = 3, x = -6.6, y = 3.2, angle = 46.72 },
+      { id = 19, x = -13.8, y = 24.2, angle = -9.205 }
+    }
+    local expected = {
+      7,
+      30,
+      16,
+      28,
+      13,
+      22,
+      23,
+      10,
+      9,
+      24,
+      25,
+      38,
+      29,
+      4,
+      35,
+      21,
+      5,
+      20,
+      11,
+      1,
+      33,
+      26,
+      32,
+      6,
+      15,
+      17,
+      2,
+      14,
+      27,
+      34,
+      37,
+      31,
+      36,
+      18,
+      19,
+      8,
+      3,
+      12
+    }
+    local result = prism.find_sequence(start, prisms)
+    assert.are.same(expected, result)
+  end)
+
+  it('complex path with multiple prisms floating point precision', function()
+    local start = { x = 0, y = 0, angle = 0.0 }
+    local prisms = {
+      { id = 46, x = 37.4, y = 20.6, angle = -88.332 },
+      { id = 72, x = -24.2, y = 23.4, angle = -90.774 },
+      { id = 25, x = 78.6, y = 7.8, angle = 98.562 },
+      { id = 60, x = -58.8, y = 31.6, angle = 115.56 },
+      { id = 22, x = 75.2, y = 28.0, angle = 63.515 },
+      { id = 2, x = 89.8, y = 27.8, angle = 91.176 },
+      { id = 23, x = 9.8, y = 30.8, angle = 30.829 },
+      { id = 69, x = 22.8, y = 20.6, angle = -88.315 },
+      { id = 44, x = -0.8, y = 15.6, angle = -116.565 },
+      { id = 36, x = -24.2, y = 8.2, angle = -90.0 },
+      { id = 53, x = -1.2, y = 0.0, angle = 0.0 },
+      { id = 52, x = 14.2, y = 24.0, angle = -143.896 },
+      { id = 5, x = -65.2, y = 21.6, angle = 93.128 },
+      { id = 66, x = 5.4, y = 15.6, angle = 31.608 },
+      { id = 51, x = -72.6, y = 21.0, angle = -100.976 },
+      { id = 65, x = 48.0, y = 10.2, angle = 87.455 },
+      { id = 21, x = -41.8, y = 0.0, angle = 68.352 },
+      { id = 18, x = -46.2, y = 19.2, angle = -128.362 },
+      { id = 10, x = 74.4, y = 0.4, angle = 90.939 },
+      { id = 15, x = 67.6, y = 0.4, angle = 84.958 },
+      { id = 35, x = 14.8, y = -0.4, angle = 89.176 },
+      { id = 1, x = 83.0, y = 0.2, angle = 89.105 },
+      { id = 68, x = 14.6, y = 28.0, angle = -29.867 },
+      { id = 67, x = 79.8, y = 18.6, angle = -136.643 },
+      { id = 38, x = 53.0, y = 14.6, angle = -90.848 },
+      { id = 31, x = -58.0, y = 6.6, angle = -61.837 },
+      { id = 74, x = -30.8, y = 0.4, angle = 85.966 },
+      { id = 48, x = -4.6, y = 10.0, angle = -161.222 },
+      { id = 12, x = 59.0, y = 5.0, angle = -91.164 },
+      { id = 33, x = -16.4, y = 18.4, angle = 90.734 },
+      { id = 4, x = 82.6, y = 27.6, angle = 71.127 },
+      { id = 75, x = -10.2, y = 30.6, angle = -1.108 },
+      { id = 28, x = 38.0, y = 0.0, angle = 86.863 },
+      { id = 11, x = 64.4, y = -0.2, angle = 92.353 },
+      { id = 9, x = -51.4, y = 31.6, angle = 67.249 },
+      { id = 26, x = -39.8, y = 30.8, angle = 61.113 },
+      { id = 30, x = -34.2, y = 0.6, angle = 111.33 },
+      { id = 56, x = -51.0, y = 0.2, angle = 70.445 },
+      { id = 41, x = -12.0, y = 0.0, angle = 91.219 },
+      { id = 24, x = 63.8, y = 14.4, angle = 86.586 },
+      { id = 70, x = -72.8, y = 13.4, angle = -87.238 },
+      { id = 3, x = 22.4, y = 7.0, angle = -91.685 },
+      { id = 13, x = 34.4, y = 7.0, angle = 90.0 },
+      { id = 16, x = -47.4, y = 11.4, angle = -136.02 },
+      { id = 6, x = 90.0, y = 0.2, angle = 90.415 },
+      { id = 54, x = 44.0, y = 27.8, angle = 85.969 },
+      { id = 32, x = -9.0, y = 0.0, angle = 91.615 },
+      { id = 8, x = -31.6, y = 30.8, angle = 0.535 },
+      { id = 39, x = -12.0, y = 8.2, angle = 90.0 },
+      { id = 14, x = -79.6, y = 32.4, angle = 92.342 },
+      { id = 42, x = 65.8, y = 20.8, angle = -85.867 },
+      { id = 40, x = -65.0, y = 14.0, angle = 87.109 },
+      { id = 45, x = 10.6, y = 18.8, angle = 23.697 },
+      { id = 71, x = -24.2, y = 18.6, angle = -88.531 },
+      { id = 7, x = -72.6, y = 6.4, angle = -89.148 },
+      { id = 62, x = -32.0, y = 24.8, angle = -140.8 },
+      { id = 49, x = 34.4, y = -0.2, angle = 89.415 },
+      { id = 63, x = 74.2, y = 12.6, angle = -138.429 },
+      { id = 59, x = 82.8, y = 13.0, angle = -140.177 },
+      { id = 34, x = -9.4, y = 23.2, angle = -88.238 },
+      { id = 76, x = -57.6, y = 0.0, angle = 1.2 },
+      { id = 43, x = 7.0, y = 0.0, angle = 116.565 },
+      { id = 20, x = 45.8, y = -0.2, angle = 1.469 },
+      { id = 37, x = -16.6, y = 13.2, angle = 84.785 },
+      { id = 58, x = -79.0, y = -0.2, angle = 89.481 },
+      { id = 50, x = -24.2, y = 12.8, angle = -86.987 },
+      { id = 64, x = 59.2, y = 10.2, angle = -92.203 },
+      { id = 61, x = -72.0, y = 26.4, angle = -83.66 },
+      { id = 47, x = 45.4, y = 5.8, angle = -82.992 },
+      { id = 17, x = -52.2, y = 17.8, angle = -52.938 },
+      { id = 57, x = -61.8, y = 32.0, angle = 84.627 },
+      { id = 29, x = 47.2, y = 28.2, angle = 92.954 },
+      { id = 27, x = -4.6, y = 0.2, angle = 87.397 },
+      { id = 55, x = -61.4, y = 26.4, angle = 94.086 },
+      { id = 73, x = -40.4, y = 13.4, angle = -62.229 },
+      { id = 19, x = 53.2, y = 20.6, angle = -87.181 }
+    }
+    local expected = {
+      43,
+      44,
+      66,
+      45,
+      52,
+      35,
+      49,
+      13,
+      3,
+      69,
+      46,
+      28,
+      20,
+      11,
+      24,
+      38,
+      19,
+      42,
+      15,
+      10,
+      63,
+      25,
+      59,
+      1,
+      6,
+      2,
+      4,
+      67,
+      22,
+      29,
+      65,
+      64,
+      12,
+      47,
+      54,
+      68,
+      23,
+      75,
+      8,
+      26,
+      18,
+      9,
+      60,
+      17,
+      31,
+      7,
+      70,
+      40,
+      5,
+      51,
+      61,
+      55,
+      57,
+      14,
+      58,
+      76,
+      56,
+      16,
+      21,
+      30,
+      73,
+      62,
+      74,
+      41,
+      39,
+      36,
+      50,
+      37,
+      33,
+      71,
+      72,
+      34,
+      32,
+      27,
+      48,
+      53
+    }
+    local result = prism.find_sequence(start, prisms)
+    assert.are.same(expected, result)
+  end)
+end)