diff --git a/Qwirkle/TestBase/TestBoard.cs b/Qwirkle/TestBase/TestBoard.cs
index 8b524ba..d7e1c3a 100644
--- a/Qwirkle/TestBase/TestBoard.cs
+++ b/Qwirkle/TestBase/TestBoard.cs
@@ -86,6 +86,47 @@ public class TestBoard
         Assert.Equal(readCells.Count, board.GetReadCells().Count);
     }
 
+    [Theory]
+    [InlineData(true)]
+    [InlineData(false)]
+    public void Test_GetOccupiedCase(bool except) 
+    {
+        Board board = new Board(12, 12);
+        Tile tile = new Tile(Shape.Club, Color.Blue);
+
+        if (except)
+        {
+            board.AddTileInCell(1, 1, tile);
+            Assert.True(board.HasOccupiedCase());
+            return;
+        }
+
+        Assert.False(board.HasOccupiedCase());
+        return;
+
+    }
+
+    [Theory]
+    [InlineData(true)]
+    [InlineData(false)]
+    public void Test_GetCellPos(bool except)
+    {
+        Board board = new Board(12, 12);
+
+        if (except)
+        {
+            Cell? c = board.GetCell(1, 1);
+            Assert.Equal(board.GetCell(1,1), c);
+            return;
+        }
+
+        Assert.Null(board.GetCell(900, 900));
+        return;
+
+    }
+
+
+
 
 }
 
diff --git a/Qwirkle/TestBase/TestLeaderboard.cs b/Qwirkle/TestBase/TestLeaderboard.cs
new file mode 100644
index 0000000..c7583b9
--- /dev/null
+++ b/Qwirkle/TestBase/TestLeaderboard.cs
@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using QwirkleClassLibrary.Games;
+using QwirkleClassLibrary.Players;
+using QwirkleClassLibrary.Tiles;
+
+namespace TestBase;
+
+public class TestLeaderboard
+{
+    [Theory]
+    [InlineData(true)]
+    public void Test_LeaderboardAdd(bool except)
+    {
+        var leaderboard = new Leaderboard();
+        var game = new Game();
+
+        game.AddPlayerInGame("Test1");
+        game.AddPlayerInGame("Test2");
+
+        game.StartGame();
+        game.SetFirstPlayer();
+
+        var tile = new Tile(Shape.Club, Color.Blue);
+        game.PlaceTile(game.GetPlayingPlayer(), tile, 1, 1);
+
+        leaderboard.AddScoreInLead(game.ScoreBoard);
+
+        Assert.True(except);
+    }
+}
diff --git a/Qwirkle/TestBase/TestTileBag.cs b/Qwirkle/TestBase/TestTileBag.cs
index d1e9ce2..8653b7d 100644
--- a/Qwirkle/TestBase/TestTileBag.cs
+++ b/Qwirkle/TestBase/TestTileBag.cs
@@ -31,23 +31,30 @@ public class TestTileBag
             Assert.True(bag.AddTileInBag(tok));
                 
         }
-        
+
     }
 
-    [Fact]
-    public void Test_RemoveTileInBag()
+    [Theory]
+    [InlineData(true)]
+    [InlineData(false)]
+    public void Test_RemoveTileInBag(bool except)
     {
-        Tile? t = null;
-        Tile tok = new(Shape.Club, Color.Green);
-        TileBag bag = new TileBag(2);
-        bag.AddTileInBag(tok);
 
-        if (t != null && bag.RemoveTileInBag(t) == false)
-        {
-            Assert.True(bag.RemoveTileInBag(tok));
+        TileBag bag = new TileBag(1);
 
+        if (except)
+        {
+            Assert.True(bag.RemoveTileInBag(bag.TilesBag[1]));
+            return;
         }
 
+        Tile tile = bag.TilesBag[0];
+
+        bag.RemoveTileInBag(tile);
+        Assert.False(bag.RemoveTileInBag(tile));
+        return;
+
+
     }