diff --git a/source/Trek-12/Models/Interfaces/IRules.cs b/source/Trek-12/Models/Interfaces/IRules.cs
index c2dbd70..b0b6e64 100644
--- a/source/Trek-12/Models/Interfaces/IRules.cs
+++ b/source/Trek-12/Models/Interfaces/IRules.cs
@@ -103,7 +103,7 @@ namespace Models.Interfaces
         /// <param name="ropePaths">The list of rope paths.</param>
         /// <param name="index">The index of the rope path.</param>
         /// <returns>True if the adjacent cell is in the rope path; otherwise false.</returns>
-        public bool IsInRopePaths(Cell adjacente, List<List<Cell>> ropePaths, int index);
+        public bool IsInRopePaths(Cell adjacente, List<List<Cell>> ropePaths, out int index);
 
         /// <summary>
         /// Check if the chosen cell has the same value as the rope path at the given index.
diff --git a/source/Trek-12/Models/Rules/Rules.cs b/source/Trek-12/Models/Rules/Rules.cs
index 677b562..d272c51 100644
--- a/source/Trek-12/Models/Rules/Rules.cs
+++ b/source/Trek-12/Models/Rules/Rules.cs
@@ -25,7 +25,7 @@ namespace Models.Rules
         {
             if (!IsCellEmpty(playerChoicePosition)) return false;
 
-            if (playerChoicePosition.Valid == false) return false;
+            if (!playerChoicePosition.Valid) return false;
 
             if (EveryAdjacentCells(playerChoicePosition, cells).Count == 1) return false;
 
@@ -46,13 +46,10 @@ namespace Models.Rules
 
         public bool IsInRopePaths (Cell adjacente,List<List<Cell>> ropePaths, out int index)
         {
-            foreach (List<Cell> path in ropePaths)
+            foreach (var path in ropePaths.Where(path => path.Contains(adjacente)))
             {
-                if (path.Contains(adjacente))
-                {
-                    index=ropePaths.IndexOf(path);
-                    return true;
-                }
+                index=ropePaths.IndexOf(path);
+                return true;
             }
 
             index = 0;
@@ -74,7 +71,7 @@ namespace Models.Rules
 
             IEnumerable<Cell> PlayedCellsQuery =
                 from cell in cells
-                where cell.Valid == true
+                where cell.Valid
                 select cell;
 
             foreach (var cell in PlayedCellsQuery)
@@ -112,8 +109,6 @@ namespace Models.Rules
                     }
                 }
             }
-
-            return;
         }
 
         public bool IsValueInZones(Cell chosenCell, List<List<Cell>> zones)