diff --git a/AdventOfCode2023.FSharp/AdventOfCode2023.FSharp.Lib/AdventOfCode2023.FSharp.Lib.fsproj b/AdventOfCode2023.FSharp/AdventOfCode2023.FSharp.Lib/AdventOfCode2023.FSharp.Lib.fsproj
index f00e16b..2b11007 100644
--- a/AdventOfCode2023.FSharp/AdventOfCode2023.FSharp.Lib/AdventOfCode2023.FSharp.Lib.fsproj
+++ b/AdventOfCode2023.FSharp/AdventOfCode2023.FSharp.Lib/AdventOfCode2023.FSharp.Lib.fsproj
@@ -16,6 +16,7 @@
         <Compile Include="Day5.fs" />
         <Compile Include="Day6.fs" />
         <Compile Include="Day7.fs" />
+        <Compile Include="Day8.fs" />
     </ItemGroup>
 
 </Project>
diff --git a/AdventOfCode2023.FSharp/AdventOfCode2023.FSharp.Lib/Day8.fs b/AdventOfCode2023.FSharp/AdventOfCode2023.FSharp.Lib/Day8.fs
new file mode 100644
index 0000000..272b831
--- /dev/null
+++ b/AdventOfCode2023.FSharp/AdventOfCode2023.FSharp.Lib/Day8.fs
@@ -0,0 +1,30 @@
+namespace AdventOfCode2023
+
+open System
+open System.Globalization
+
+[<RequireQualifiedAccess>]
+module Day8 =
+
+    let parse (s : string) : ResizeArray<int> =
+        use mutable lines = StringSplitEnumerator.make '\n' s
+        let result = ResizeArray ()
+
+        while lines.MoveNext () do
+            if not lines.Current.IsEmpty then
+                use mutable line = StringSplitEnumerator.make' ' ' lines.Current
+                line.MoveNext () |> ignore
+                result.Add (3)
+
+        result
+
+    let part1 (s : string) =
+        let arr = parse s
+        let mutable answer = 0
+        answer
+
+    let part2 (s : string) =
+        let arr = parse s
+        let mutable answer = 0
+
+        answer
diff --git a/AdventOfCode2023.FSharp/AdventOfCode2023.FSharp/Program.fs b/AdventOfCode2023.FSharp/AdventOfCode2023.FSharp/Program.fs
index 608c7f9..5514ffb 100644
--- a/AdventOfCode2023.FSharp/AdventOfCode2023.FSharp/Program.fs
+++ b/AdventOfCode2023.FSharp/AdventOfCode2023.FSharp/Program.fs
@@ -158,6 +158,21 @@ module Program =
             Console.WriteLine (part2.ToString ())
             Console.Error.WriteLine ((1_000.0 * float sw.ElapsedTicks / float Stopwatch.Frequency).ToString () + "ms")
 
+        Console.WriteLine "=====Day 8====="
+
+        do
+            let input = Path.Combine (dir.FullName, "day8.txt") |> File.ReadAllText
+            sw.Restart ()
+            let part1 = Day8.part1 input
+            sw.Stop ()
+            Console.WriteLine (part1.ToString ())
+            Console.Error.WriteLine ((1_000.0 * float sw.ElapsedTicks / float Stopwatch.Frequency).ToString () + "ms")
+            sw.Restart ()
+            let part2 = Day8.part2 input
+            sw.Stop ()
+            Console.WriteLine (part2.ToString ())
+            Console.Error.WriteLine ((1_000.0 * float sw.ElapsedTicks / float Stopwatch.Frequency).ToString () + "ms")
+
         endToEnd.Stop ()
 
         Console.Error.WriteLine (
diff --git a/AdventOfCode2023.FSharp/Test/Test.fsproj b/AdventOfCode2023.FSharp/Test/Test.fsproj
index d7232f8..c8d2ffe 100644
--- a/AdventOfCode2023.FSharp/Test/Test.fsproj
+++ b/AdventOfCode2023.FSharp/Test/Test.fsproj
@@ -16,6 +16,7 @@
         <Compile Include="TestDay5.fs" />
         <Compile Include="TestDay6.fs" />
         <Compile Include="TestDay7.fs" />
+        <Compile Include="TestDay8.fs" />
         <EmbeddedResource Include="samples\day1.txt" />
         <EmbeddedResource Include="samples\day1part1.txt" />
         <EmbeddedResource Include="samples\day2.txt" />
@@ -24,6 +25,7 @@
         <EmbeddedResource Include="samples\day5.txt" />
         <EmbeddedResource Include="samples\day6.txt" />
         <EmbeddedResource Include="samples\day7.txt" />
+        <Content Include="samples\day8.txt" />
     </ItemGroup>
 
     <ItemGroup>
diff --git a/AdventOfCode2023.FSharp/Test/TestDay8.fs b/AdventOfCode2023.FSharp/Test/TestDay8.fs
new file mode 100644
index 0000000..607619c
--- /dev/null
+++ b/AdventOfCode2023.FSharp/Test/TestDay8.fs
@@ -0,0 +1,46 @@
+namespace AdventOfCode2023.Test
+
+open System
+open AdventOfCode2023
+open NUnit.Framework
+open FsUnitTyped
+open System.IO
+
+[<TestFixture>]
+module TestDay8 =
+
+    let sample = Assembly.getEmbeddedResource typeof<Dummy>.Assembly "day8.txt"
+
+    [<Test>]
+    let part1Sample () =
+        sample |> Day8.part1 |> shouldEqual 0
+
+    [<Test>]
+    let part2Sample () =
+        sample |> Day8.part2 |> shouldEqual 0
+
+    [<Test>]
+    let part1Actual () =
+        let s =
+            try
+                File.ReadAllText (Path.Combine (__SOURCE_DIRECTORY__, "../../inputs/day8.txt"))
+            with
+            | :? DirectoryNotFoundException
+            | :? FileNotFoundException ->
+                Assert.Inconclusive ()
+                failwith "unreachable"
+
+        Day8.part1 s |> shouldEqual 0
+
+    [<Test>]
+    let part2Actual () =
+        let s =
+            try
+                File.ReadAllText (Path.Combine (__SOURCE_DIRECTORY__, "../../inputs/day8.txt"))
+            with
+            | :? DirectoryNotFoundException
+            | :? FileNotFoundException ->
+                Assert.Inconclusive ()
+                failwith "unreachable"
+
+        Day8.part2 s |> shouldEqual 0
diff --git a/AdventOfCode2023.FSharp/Test/samples/day8.txt b/AdventOfCode2023.FSharp/Test/samples/day8.txt
new file mode 100644
index 0000000..e69de29