diff --git a/inf3.csproj b/inf3.csproj
index 9ed020a..efa4bc4 100644
--- a/inf3.csproj
+++ b/inf3.csproj
@@ -57,7 +57,7 @@
     <Compile Include="src\StringUtils.cs" />
     <Compile Include="src\ParsingException.cs" />
     <Compile Include="src\Message.cs" />
-    <Compile Include="Opponent.cs" />
+    <Compile Include="src\Opponent.cs" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="src\DefaultGui\" />
diff --git a/Opponent.cs b/src/Opponent.cs
similarity index 71%
rename from Opponent.cs
rename to src/Opponent.cs
index 89e2eb4..56f1b18 100644
--- a/Opponent.cs
+++ b/src/Opponent.cs
@@ -4,13 +4,15 @@ namespace inf3
 {
 	public class Opponent
 	{
+		int id_;
 		int points_;
 		int total_;
 		enum Decision {DRAGON, STAGHUNT, SKIRMISH};
 		Decision d_;
 
-		public Opponent (int points, int total, Decision d)
+		public Opponent (int id, int points, int total, Decision d)
 		{
+			id_ = id;
 			points_ = points;
 			total_ = total;
 			d_ = d;