diff --git a/README.md b/README.md
index 5f62afa..c6282df 100644
--- a/README.md
+++ b/README.md
@@ -1202,6 +1202,10 @@ string translatedMove = moveTranslationService.TranslateMove(game.MoveHistory[0]
 
 ## Release Notes
 
+Version 2.1.0
+- Fix the issue where the `AddXiangqiCore` extension method throws an error
+- Improve the memory performance when validating the moves
+
 Version 2.0.1
 
 Bug Fixes:
diff --git a/XiangqiCore/Extension/DependencyInjection.cs b/XiangqiCore/Extension/DependencyInjection.cs
index c0f3584..bf8573b 100644
--- a/XiangqiCore/Extension/DependencyInjection.cs
+++ b/XiangqiCore/Extension/DependencyInjection.cs
@@ -25,9 +25,6 @@ public static IServiceCollection AddXiangqiCore(this IServiceCollection services
 		services.AddScoped<IGifGenerationService, DefaultGifGenerationService>();
 		services.AddScoped<IPgnSavingService, DefaultPgnSavingService>();
 
-		services.AddScoped<IMoveCommand, NotationMoveCommand>();
-		services.AddScoped<IMoveCommand, CoordinateMoveCommand>();
-
 		services.AddScoped<IXiangqiBuilder, XiangqiBuilder>();
 
 		return services;
diff --git a/XiangqiCore/Game/XiangqiBuilder.cs b/XiangqiCore/Game/XiangqiBuilder.cs
index 12ea323..4177ec1 100644
--- a/XiangqiCore/Game/XiangqiBuilder.cs
+++ b/XiangqiCore/Game/XiangqiBuilder.cs
@@ -42,6 +42,11 @@ public XiangqiBuilder()
 	{
 	}
 
+	public XiangqiBuilder(IMoveParsingService moveParsingService)
+	{
+		_moveParsingService = moveParsingService;
+	}
+
 	/// <summary>
 	/// Sets the Xiangqi game configuration to the default starting position.
 	/// </summary>
diff --git a/XiangqiCore/XiangqiCore.csproj b/XiangqiCore/XiangqiCore.csproj
index f066505..7493817 100644
--- a/XiangqiCore/XiangqiCore.csproj
+++ b/XiangqiCore/XiangqiCore.csproj
@@ -16,7 +16,7 @@
     <PackageReadmeFile>README.md</PackageReadmeFile>
     <RepositoryUrl>https://github.com/chijason99/Xiangqi-Core</RepositoryUrl>
     <PackageTags>xiangqi;chinese chess</PackageTags>
-	<Version>2.0.1</Version>
+	<Version>2.1.0</Version>
   </PropertyGroup>
 
   <ItemGroup>