diff --git a/Qwirkle/QwirkleClassLibrary/Games/Game.cs b/Qwirkle/QwirkleClassLibrary/Games/Game.cs
index caca023..ccd734b 100644
--- a/Qwirkle/QwirkleClassLibrary/Games/Game.cs
+++ b/Qwirkle/QwirkleClassLibrary/Games/Game.cs
@@ -586,7 +586,7 @@ namespace QwirkleClassLibrary.Games
         /// <param name="b"></param>
         /// <param name="checkdoubles"></param>
         /// <returns></returns>
-        public bool CheckWrongCompletedLines(int x, int y, int dx, int dy, Board b, ref List<Tile> checkdoubles)
+        public static bool CheckWrongCompletedLines(int x, int y, int dx, int dy, Board b, ref List<Tile> checkdoubles)
         {
             int nbTiles = 1;
             
diff --git a/Qwirkle/TestBase/TestGame.cs b/Qwirkle/TestBase/TestGame.cs
index e09f068..ff2cfac 100644
--- a/Qwirkle/TestBase/TestGame.cs
+++ b/Qwirkle/TestBase/TestGame.cs
@@ -423,7 +423,6 @@ public class TestGame
     [Fact]
     public void Test_CheckWrongCompletedLines()
     {
-        var game = new Game();
         var board = new Board(17, 14);
         var checkDoubles = new List<Tile>();
         int x = 4, y = 1, dx = 1, dy = 0;
@@ -435,7 +434,7 @@ public class TestGame
         board.AddTileInCell(6, 1, new Tile(Shape.Shuriken, Color.Red));
         board.AddTileInCell(7, 1, new Tile(Shape.Rhombus, Color.Red));
         
-        bool result = game.CheckWrongCompletedLines(x, y, dx, dy, board, ref checkDoubles);
+        bool result = Game.CheckWrongCompletedLines(x, y, dx, dy, board, ref checkDoubles);
 
         Assert.False(result);
     }