File list (Check if you may need any files):
sudoku_Csharp
.............\AboutBox.cs
.............\AboutBox.Designer.cs
.............\AboutBox.resx
.............\app.config
.............\CustomControls.cs
.............\Dance.csproj
.............\Dance.sln
.............\Dance.txt
.............\DancingLinks.cs
.............\GameData.cs
.............\MainForm.cs
.............\MainForm.Designer.cs
.............\MainForm.resx
.............\Permutation.cs
.............\Program.cs
.............\Properties
.............\..........\app.manifest
.............\..........\AssemblyInfo.cs
.............\..........\Resources.Designer.cs
.............\..........\Resources.resx
.............\..........\Settings.Designer.cs
.............\..........\Settings.settings
.............\PuzzlesCollectionForm.cs
.............\PuzzlesCollectionForm.Designer.cs
.............\PuzzlesCollectionForm.resx
.............\PuzzlesGenerator.cs
.............\PuzzlesGeneratorForm.cs
.............\PuzzlesGeneratorForm.Designer.cs
.............\PuzzlesGeneratorForm.resx
.............\Scene.cs
.............\Settings.cs
.............\Sudoku.cs
.............\Utils.cs