How do I instantiate multiple game objects using Photon unity network?

Here's my code on spawning a chess piece, but I want to do it on Photon Unity Network, How do I do that? Thanks.

 private void SpawnChessman(int index, int x, int y)
     {
         GameObject go = Instantiate (chessmanPrefabs [index], GetTileCenter(x,y), Quaternion.identity) as GameObject;
         go.transform.SetParent (transform);
         Chessmans [x, y] = go.GetComponent<Chessman> ();
         Chessmans [x, y].SetPosition (x, y);
         activeChessman.Add (go);
         
     }