diff --git a/Sources/UnitTesting/UnitTesting.csproj b/Sources/UnitTesting/UnitTesting.csproj
new file mode 100644
index 0000000..22b0134
--- /dev/null
+++ b/Sources/UnitTesting/UnitTesting.csproj
@@ -0,0 +1,25 @@
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diff --git a/Sources/mastermind.sln b/Sources/mastermind.sln
index f08ea1d..806d18f 100644
--- a/Sources/mastermind.sln
+++ b/Sources/mastermind.sln
@@ -1,39 +1,48 @@
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+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
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+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MauiSpark", "MauiSpark\MauiSpark.csproj", "{BD22A919-E40E-4791-A6B0-2B8D37BBE834}"
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+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
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+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{341FB405-085D-4C34-B395-64EF0F9B93E0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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