gistfile1.cs

        private Pos NextPathNode(LinkedList<Pos> open, Pos goal)
        {
            LinkedListNode<Pos> node = open.First;
            LinkedListNode<Pos> best = node;
            int bestScore = EstimatePath(node.Value, goal);

            while (node.Next != null)
            {
                node = node.Next;

                int score = EstimatePath(node.Value, goal);

                if (score < bestScore)
                {
                    bestScore = score;
                    best = node;
                }
            }

            return best.Value;
        }