Abstract
The discovery of three outstanding Achaemenid buildings in Borazdjan Plain territory, such as “Charkhab”, “Sang-Siyah” and “Bardak-Siyah”, unveiled a new domain in the archaeological study of the Persian Gulf hinterlands and in the Achaemenid era. Excavation in the surrounding areas of these three buildings in two courses in the years of the decades 1350s and 1380s, led to the expsition of their different parts and architectural details. The presence of remarkable Achaemenid architectural elements including the central columned hall, lateral pillared porches and stone column pedestals, as well as the locality situations of the palaces on the plain and peripheral areas of the permanent “Dalaki” and “Shapur” and the seasonal “Ardu”rivers, made new theories possible about the quality and the reason of choosing the location and the erection of a government edifice in the Achaemenid era, while putting forward some general questions about the spatial structure of each palace. Because of the roughcast excavations, our information about the spatial extent of the unearthed collections is quite incomplete. In “Charkhab” site, for being in the vicinity of the seasonal “Ardu” river, there has been more than 1.5 meters of sedimentation which makes it difficult to access Achaemenid findings. So we decided to use new archaeological methods especially archeo-geophysical survey to study around the site and then continue the excavation around the palace according to the results obtained. So, in the first step, the western and north-western fronts with the extent of 13 hectares were surveyed archeo-geophysically using a magnetometric method and according to the outputs and the final produced map and the scatteration of exposed anomalies, some locations were determined for trenches and excavation. According to the maps obtained through magnetometry, some trenches were selected in zones where the abundance of anomalies was evident. In total, two trenches CH II and CH III, each with the dimension of 10×10 were excavated, while most findings were obtained from an Achaemenid leyer in trench CH III in the depth of 153 cm, where items such as baked bricks with the dimension 32×32×8 with bitumen mortar similar to those of Charkhab Palace, gate-pivot stones and pillar foundations worked with raw stone, pieces of cream colored pedestal stones and the most important of all, pieces of cornoture with horizontal strings similar to that of “Bardak-Siyah” Palace and  the specific palace of Cyrus at Pasargadae, can be mentioned
Keywords: Borazjan, Charkhab Palace, Archaeogeophysical Survey, Magnetometry, Excavation of Charkhab Site.

Introduction
Describing the importance of the Persian Gulf and its geopolitical role in the Achaemenid period, Herodotus describes the actions of “Scyllax Cariandi” and the order of Darius II to identify a sea route from the Indus River in India to Egypt, which was used by Indians and Iranians (Herodoutus, 1828: 289). 
In addition, other well-known historians and geographers of the early Christian centuries, such as Strabo, Arian, and Ptolemy, mentioned the Persian Gulf with titles such as “Persicon Kitas” and “Sinus Persicus”. 
The commercial prosperity of its shores is described in interaction with the West and the East. (Bayat, 1988: 28). 
Generally speaking, it can be inferred that the northern shores of the Persian Gulf inspecial, were of great importance during the Achaemenid period and later, and the construction of magnificent architectural works and government landmarks have not been unexpected.
The discovery of the remains of three outstanding Achaemenid landmarks in Borazjan plain titled “Charkhab”, “Sang-e Siah” and “Bardak-Siah”, opened a new chapter in the archaeological studies of the Persian Gulf and the Achaemenid history as well.
Excavation of these buildings during two seasons in the 1350s and 1380s, led to the discovery of various sections and their architectural components. 
Considering the presence of prominent elements of Achaemenid architecture, including the central columned hall, the side columned porches and stone pillars, along with the location of these palaces in the plains and the banks of Dalki and Shapur rivers and the seasonal Ardo valley, it has been tried to provide a definitive answer to existing questions and hypotheses based on current studies in this article. 
Asking general questions about the spatial structure of each of these palaces, provided new insights into how and why to choose a location and build a government building during the Achaemenid period. 
An important question in this field is whether these palaces were only used as summer accommodation facilities or they have been used as government seats.
Hypotheses in this study, basically suggest that the development of maritime trade, offshore communication routes, as well as suitable environmental structures and facilities, have led to the Achaemenid settlements in Borazjan plain. 
Achaemenid palaces discovered in Borazjan plain are part of the urban structures in that period. Some Achaemenid relics discovered, such as the Charkhab Palace, might have been left incomplete due to improper site selection and unsuitable location.
Architectural structures and spatial analyzes of the sites discovered in the Borazjan plain, are probably modeled on the architecture of the earlier Achaemenid culture in Pasargadae.
Studies of the surroundings of these sites show that there are other spaces related to the palaces. Based on geophysical studies as well as archaeological surveys around the sites, it can be imagined that these palaces were a collection. Further information on this subject, needs further archeological excavations and research.
One of the most important Achaemenid buildings on the northern hinterlands of the Persian Gulf is Charkhab Palace, which was accidentally discovered in 1350, during the bulldozing operations of water transfer pipeline from Borazjan to Bushehr, through the date palm groves on the western suburb outskirts of Borazjan and in the so-called “Charkhab area”.  
After preliminary investigations and the similarity of the discovered structure with the stone columns used in Pasargadae, it was decided to explore the place of discovery. The result of this excavation led to the appearance of different parts of the remains of a magnificent Achaemenid building (Sarfaraz, 1350 and 1351; Ebrahimi, 1391). Simultaneously with the excavation of Charkhab site and following the public reports that similar relics were found close a nearby village called Jatut / Jatal; Sarfaraz was able to discover another building on the banks of Dalaki River called Sang-e Siyah, about nine kilometers north of Charkhab. 
This site was excavated in 1977 by Ismail (Ehsan) Yaghmaei (Yaghmaei, 2005: 9-11; 2018: 191-196; Ebrahimi, 2012). 
During the exploration of the Sang-e Siyah remains and in the surrounding areas and palm groves, the excavations led to the discovery of another building called “Bardak Siyah” which means “the black stone”, among the palm groves of Dorudgah village. 
Yaghmaei explored the building and continued his excavations during the winter and the spring of 1978 (Yaghmaei, 2005; 1397; Ebrahimi, 2012). 
In the 2001s, with the resumption of archeological activities in Bushehr province, the Charkhab building, which had been buried under the flood deposits after the first exploration period, was excavated again by Sarfaraz in five consecutive seasons. 
In addition to the sections that were appeared earlier, some other new parts of the building became visible again. (Sarfaraz, 2001; 2003; 2004; 2005; 2006).
Due to unfinished excavations, our knowledge of the spatial extent of these collections is very limited. 
In the Charkhab area, the settled sediments are more than 1.5 meters high, due to its proximity to the Ardo seasonal river. This has made it difficult to obtain necessary findings from the Achaemenid period.
The study of archeogeophysics today, plays a crucial role in identifying the points and structures of ancient layers.
Using this methodology, saves time and also achieves the desired results much faster, much easier and much more accurately.
Therefore, we decided to use these new archeological methods, especially archaeogeophysical surveys, to conduct research around this area, and based on the results of these studies, to continue exploring around the palace.
Therefore, in the first place, the western and northwestern fronts of the palace, with an area of 13 hectares, were examined by magnetometric archeogeophysics, which revealed the dispersion of anomalies according to the output and finalized maps, and places for trenches and excavations were determined.
According to magnetic output maps, trenches were selected in areas where the abundance of anomalies was apparent.
Totally, two trenches ChII and ChIII with dimensions of 10 x 10 were excavated and most findings were obtained in trench ChIII at a depth of 153 cm and in an Achaemenid layer. 
In the cultural findings of the recent excavation in Charkhab, paddy parts of the columns with cream-colored strings are important.
Examples found in Bardak Siyah and Sang-e Siyah, are also comparable to the example of the private palace of Cyrus the Great in Pasargadae.
These paddy parts are quite different from the paddy parts obtained in Charkhab Palace (ChI), which are round and black without any carvings.
It seems that this collection (ChIII) is similar in architectural elements to those of Bardak Siyah and Sang-e Siyah palaces and those of the private palace of Cyrus the Great in Pasargadae.
The cream-colored base stone of the gateway as well as the foundations of the columns found in the ChIII trench are similar to those of Charkhab(ChI) and Bardak Siyah palaces.
The bricks obtained with  the dimensions of 33 x 33 x 8 cm and bitumen mortar in this trench are comparable to those found in the palaces discovered in Borazjan.
Given the architectural elements obtained, it is possible that this complex had been built earlier than the Charkhab Palace (ChI) itself.
Undoubtedly, more studies and more extensive research are needed to answer all the hypotheses and questions.

Abstract
In determining the boundaries of Qara Tappeh Sagzabad and Tappeh Qabristan in July 2016, evidence of a cemetery in the east of Qara Tappeh and southwest of Tappeh Qabristan belonging they revealed to the Iron Age 2 and 3 under sedimentary layers. In the 2018 and 2019 seasons of excavations, we got valuable findings in trenches 13 and 12 on the site. Among these findings are two tablet-like objects, one of these two objects, made of stone with a rectangular shape and light gray with a length and width of 12.5 × 18 cm and a thickness of 2.8 cm with circular blind holes, The holes made in four vertical rows and nine horizontal rows to a depth of 1.4 cm on one side of the object. We found the object in Grave No. 8 of Trench 13. Another example is a broken part of a gray rectangular clay object measuring 5.1 x 5.86 cm long and 2.81 cm thick with six circular blind holes 2.2 cm deep. We excavated this object from Trench 12. The two objects in question are comparable to the specimens found from Kul-Tarikeh, Haftavan Tappeh, and specimens unearthed from the neighbors of the Uzbeki archaeological site and the Sialk cemetery in the first millennium BC. This article examines these objects in terms of morphology and compares them with other similar findings, and it is likely that these findings, based on other examples and examples from older periods, are a kind of tablet for counting games; First by placing the findings in the archaeological context and comparative comparison with contemporaneous sites and then measuring the results with earlier examples of these findings in other archaeological sites, a preliminary proposal to use a counting game or board game for objects provided.
Keywords: Iron Age, Sagzabad, Qara Tappeh, Numerical Tablet, Boardgame.

Introduction
Since the first archaeological excavations in West Asia to the present day, thousands of types of objects have been discovered from archaeological sites, and researchers have proposed various approaches for the functional interpretation of each object. Among these approaches has been a comparative comparison of the findings with other similar findings and an understanding of the functional concept of the object in the archaeological context. Examples of objects found over a long period from the Late Neolithic period to the Achaemenid period and later in various areas from Egypt to Central Asia have been called game boards. In the excavations of the 2018 and 2019 years seasons in the Qara Tappeh of Sagzabad, similar findings were obtained with these samples. Initially, the findings were assumed to be a common type of board game in ancient West Asian cultures. Further study in this field revealed that unfortunately, no correct definition of the board has been provided in the archaeological literature of West Asia and different these forms from the Neolithic period to the first Islamic century (7th century AD) in this region known or registered. Therefore, the samples were compared with objects called board games, and a suggestion was made to use them. Thus, first, the desired findings and the texture of the place of their discovery are described, and then a brief review of the type of cultural materials called game boards done, and finally, the desired materials analyzed and we make comparative conclusions. Based on this, these findings can be near-certainty examples with the use of counting games. The two morphological objects found in the Qara Tappeh excavations can be like the examples from the findings of the West Asian sites, which are known as game boards in the archeological cultures of the region. For this issue, the two fundamental questions of this research will be in the following order.
1- What is the use of the previous samples in terms of morphology that are like the findings of Qara Tappeh Seghzabad?
2- What kind of Function can the two objects found in Qara Tappeh Sagzabad represent?

Identified Traces
Qara Tappeh is one of the key sites of the Iron Age in the center of the Iranian plateau. Two special findings have been obtained, which are like ancient game boards. The relative and absolute chronology show that these two objects belong to the first millennium BC. Game boards are among the archaeological finds found in large geographical and cultural areas of West Asia and North Africa and the Indian subcontinent, simultaneously with the Neolithic, Chalcolithic, Bronze Age, and the Mesopotamian Dynasty, Egypt up to the Achaemenid period, Perhaps the oldest examples of this are, for example, what introduced by Hole (1977: 215) from the Neolithic site of Choghasefid and Kirkbride (1966: 34) of Beidha and Rollefson (1977) of the Ain Al Ghazal. Various other types of game boards with The Game of 20 Square, The Game of 58 Holes, Senet, Mehen, Mankala, Nine men’s morris, Backgammon, and Chess have been introduced from ancient cultures. With certainty, examples of Qara Tappeh can be one game of 58 holes. This game Rule is less well known, but the overall morphology of the game shows that this board Has been a kind of racing game, pieces like pins could be inserted into the holes of the board and move along a certain path according to the number of dice poured, the name of the game is a description of the appearance of the game but always the number of holes on the board Not equal, it thought that this game invented in Egypt during the ninth to twelfth dynasties (2100 BC) and has been widespread in Egypt since the late third millennium BC. Has found. This game was common during the second millennium BC of Mesopotamia and among its close neighbors. Archaeologists have not found examples of this game in various areas of the region after the 6th century BC. (de voogt et al., 2013: 1718-1719). The samples found from Qara Tappeh can be considered as a type of game of 58-hole based on the morphological comparison.

Conclusion
What is found in the trench of 13 Qara Tappeh with 36 blind holes and a passing hole in the highest part of the tablet can be among the types that are known as the game with 58 holes, the closest example in terms of the number of holes on the find, sample Is introduced in the surface survey of the Kul Tarikeh. Another example that is similar in shape to the two aforementioned examples is the example introduced from the Haftavan. This finding, however, unlike the two aforementioned findings, has 3 horizontal rows and 8 vertical rows. If we accept that the tablet found in Trench 13 is a kind of board game, we must say that there are no special rules for the type of use. On the other hand, the presence of an all-round hole in the upper part of the find can indicate that the tablet could hang from somewhere. Finally, according to the relative comparisons, the object found in Trench 12 can be considered as a broken piece of a game 58-holes. But in the case of Trench 13, this must be considered more carefully. Only according to the appearance of the object can be considered as a preliminary use of the game of 58-holes for it.