public int verifyNumberOfPlayersOnBoard(){
	int players = 0;
	Tile currentJTile = topTile;
	for(int j = 0; j < dimension; j++){
	    Tile currentKTile = currentJTile;
	    for(int k = 0; k < dimension; k++){
		if(currentKTile.playerOnTile != null){
		    players++;
		}
		currentKTile = currentKTile.rightDown;
	    }
	    currentJTile = currentJTile.leftDown;
	}
	return players;
    }