diff --git a/Qwirkle/QwirkleClassLibrary/Board.cs b/Qwirkle/QwirkleClassLibrary/Board.cs
index 4614b52..81ba4e0 100644
--- a/Qwirkle/QwirkleClassLibrary/Board.cs
+++ b/Qwirkle/QwirkleClassLibrary/Board.cs
@@ -51,7 +51,6 @@ namespace QwirkleClassLibrary
                 if (cells[i].IsFree == true)
                 {
                     return cells[i].SetTile(tile);
-
                 }
             }
             return false;
diff --git a/Qwirkle/QwirkleClassLibrary/Game.cs b/Qwirkle/QwirkleClassLibrary/Game.cs
index da0769d..088cb03 100644
--- a/Qwirkle/QwirkleClassLibrary/Game.cs
+++ b/Qwirkle/QwirkleClassLibrary/Game.cs
@@ -24,6 +24,9 @@ namespace QwirkleClassLibrary
 
         public ReadOnlyCollection<Score> ScoreList => scores.AsReadOnly();
         private readonly List<Score> scores = new();
+        
+        public ReadOnlyCollection<Cell> CellsUsed => cellUsed.AsReadOnly();
+        private readonly List<Cell> cellUsed = new();
 
         public Game()
         {
@@ -84,6 +87,16 @@ namespace QwirkleClassLibrary
             return true;
         }
         
+        public void AddCellUsed(Cell? c)
+        {
+            if (c != null) cellUsed.Add(c);
+        }
+        
+        public void EmptyCellUsed()
+        {
+            cellUsed.Clear();
+        }
+        
         public Player GetPlayingPlayer()
         {
             if(GetPlayingPlayerPosition() == -1)
@@ -165,6 +178,12 @@ namespace QwirkleClassLibrary
             }
         }
         
+        
+        /// <summary>
+        /// Allows a player to draw tiles from the bag as soon as he has less than 6 tiles
+        /// </summary>
+        /// <param name="player"></param>
+        /// <returns></returns>
         public bool DrawTiles(Player player)
         {
             while(player.Tiles.Count < 6)
@@ -210,6 +229,55 @@ namespace QwirkleClassLibrary
 
             return true;
         }
+        
+        public bool CheckExtendedSurroundingCells(Tile tile, int x, int y, int dx, int dy, Board b)
+        {
+            for (int i = 1; i < 7; i++)
+            {
+                var extendedCell = b.GetCell(x + i * dx, y + i * dy);
+                
+                if (extendedCell?.GetTile == null)
+                {
+                    break;
+                }
+
+                if (extendedCell.GetTile.GetColor != tile.GetColor && extendedCell.GetTile.GetShape != tile.GetShape)
+                {
+                    return false;
+                }
+
+                if (i == 6)
+                {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        public bool CheckTilesInLine(List<Cell> cells, Board b, int x, int y)
+        {
+            if(cells.Count < 2)
+            {
+                return true;
+            }
+            
+            var x1 = cells[0].GetX;
+            var y1 = cells[0].GetY;
+            var x2 = cells[1].GetX;
+            var y2 = cells[1].GetY;
+
+            if (x1 == x2)
+            {
+                return x == x1;
+            }
+            if (y1 == y2)
+            {
+                return y == y1;
+            }
+
+            return false;
+        }
 
         public bool IsMoveCorrect(Tile t, int x, int y, Board b)
         {
@@ -218,7 +286,7 @@ namespace QwirkleClassLibrary
                 return true;
             }
 
-            var surroundingCells = new[]
+            var surroundingCells = new List<Cell?>
             {
                 b.GetCell(x + 1, y),
                 b.GetCell(x - 1, y),
@@ -241,29 +309,14 @@ namespace QwirkleClassLibrary
                 var dx = cell.GetX - x;
                 var dy = cell.GetY - y;
 
-                for (int i = 1; i < 7; i++)
+                if (CheckExtendedSurroundingCells(t, x, y, dx, dy, b) == false)
                 {
-                    var extendedCell = b.GetCell(x + i * dx, y + i * dy);
-                    
-                    if (extendedCell?.GetTile == null)
-                    {
-                        break;
-                    }
-
-                    if (extendedCell.GetTile.GetColor != t.GetColor && extendedCell.GetTile.GetShape != t.GetShape)
-                    {
-                        return false;
-                    }
-
-                    if (i == 6)
-                    {
-                        return false;
-                    }
+                    return false;
                 }
             }
 
-            return surroundingCells.Any(cell => cell?.GetTile != null);
-        }
+            return CheckTilesInLine(this.cellUsed, b, x, y) && surroundingCells.Any(cell => cell?.GetTile != null);
+        } 
 
         public int GetPlayerScore(Player player, List<Cell> cellsPlayed, Board board)
         {
@@ -319,7 +372,7 @@ namespace QwirkleClassLibrary
 
         public bool IsGameOver()
         {
-            return false;
+            return true;
         }
     }
 }
\ No newline at end of file
diff --git a/Qwirkle/QwirkleClassLibrary/IRules.cs b/Qwirkle/QwirkleClassLibrary/IRules.cs
index 75d47a4..5041b74 100644
--- a/Qwirkle/QwirkleClassLibrary/IRules.cs
+++ b/Qwirkle/QwirkleClassLibrary/IRules.cs
@@ -14,6 +14,10 @@ namespace QwirkleClassLibrary
         
         bool IsMoveCorrect(Tile t, int x, int y, Board b);
         
+        bool CheckExtendedSurroundingCells(Tile tile, int x, int y, int dx, int dy, Board b);
+        
+        bool CheckTilesInLine(List<Cell> cells, Board b, int x, int y);
+        
         bool IsGameOver();
     }
 }
diff --git a/Qwirkle/QwirkleConsoleApp/Program.cs b/Qwirkle/QwirkleConsoleApp/Program.cs
index ef2f2a0..e76c236 100644
--- a/Qwirkle/QwirkleConsoleApp/Program.cs
+++ b/Qwirkle/QwirkleConsoleApp/Program.cs
@@ -76,6 +76,7 @@ static void AddTile(Game game)
         if (game.PlaceTile(game.GetPlayingPlayer(), tile, x, y) == true)
         {
             WriteLine("ok ! your tile is placed");
+            game.AddCellUsed(game.GetBoard().GetCell(x, y));
         }
         else
         {
@@ -149,6 +150,7 @@ static void MenuSwitch(Game game)
                 enter = 3;
                 break;
             case 3:
+                game.EmptyCellUsed();
                 return;
         }
     }
@@ -195,7 +197,7 @@ static void MainMenu(Game game)
         game.DrawTiles(game.GetPlayingPlayer());
         MenuSwitch(game);
 
-    } while (true); //while (game.GetPlayingPlayerPosition() != game.PlayerList.Count - 1);
+    } while (game.IsGameOver()); //while (game.GetPlayingPlayerPosition() != game.PlayerList.Count - 1);
 }
 
 static void MainGame()