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Abu Bakr Bin Yahya Al-Suli
Abū Bakr Muḥammad ibn Yaḥyā ibn al-‘Abbās al-Ṣūlī (Arabic: ), (born c. 870 Gorgan – died between 941 and 948 Basra) was a Turkic scholar and a court companion of three Abbāsid caliphs: al-Muktafī, his successor al-Muqtadir, and later, al-Rāḍī, whom he also tutored. He was a bibliophile, wrote letters, editor-poet, chronicler, and a shatranj player. His contemporary biographer Isḥāq al-Nadīm tells us he was “of manly bearing.” He wrote many books, the most famous of which are '' Kitāb Al-Awrāq'' and '' Kitāb al-Shiṭranj''. Life Abū Bakr al-Ṣūlī was born into an illustrious family of Turkic origin, his great-grandfather was the Turkic prince Sul-takin and his uncle was the poet Ibrahim ibn al-'Abbas as-Suli. Al-Marzubānī, a principal pupil of al-Ṣūlī, who admired him and copied him in the art of compilation, borrowed much of al-Ṣūlī's material for his ''Kitāb al-Muwashshaḥ''. Abū al-Faraj al-Iṣbahānī made extensive u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gorgan
Gorgan ( fa, گرگان ; also romanized as ''Gorgān'', ''Gurgān'', and ''Gurgan''), formerly Esterabad ( ; also romanized as ''Astarābād'', ''Asterabad'', and ''Esterābād''), is the capital city of Golestan Province, Iran. It lies approximately to the north east of Tehran, some away from the Caspian Sea. In the 2006 census; its population was 269,226, in 73,702 families. History There are several archaeological sites near Gorgan, including Tureng Tepe and Shah Tepe, in which there are remains dating from the Neolithic and Chalcolithic eras. Some other important Neolithic sites in the area are Yarim Tepe, and Sange Chaxmaq. Also, the nearby Shahroud Plain has many such sites. The number of confirmed Neolithic sites on the Gorgan Plain now totals more than fifty. According to the Greek historian Arrian, Zadracarta was the largest city of Hyrcania and site of the "royal palace". The term means "the yellow city", and it was given to it from the great number of oranges, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Al-Adli Ar-Rumi
Al-Adli al-Rumi (), was an Arab player and theoretician of Shatranj, an ancient form of chess from Persia. Originally from Anatolia, he authored one of the first treatises on Shatranj in 842, called ''Kitab ash-shatranj'' ('Book of Chess'). He was recognized as the best Shatranj player in the 9th century during the reign of al-Wathiq until his loss to al-Razi, just before or early into the reign of al-Mutawakkil. In his treatise al-Adli compiled the ideas of his predecessors on Shatranj. The book was lost but the problems he discussed survived in the works of successors. Mansūbāt were end game scenarios, where victory was obtained either by checkmate or stalemate Stalemate is a situation in the game of chess where the player whose turn it is to move is not in check and has no legal move. Stalemate results in a draw. During the endgame, stalemate is a resource that can enable the player with the inferior ..., or by baring the opposing king. From his work came a variant of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blindfold Chess
Blindfold chess, also known as ''sans voir'', is a form of chess play wherein the players do not see the positions of the pieces and do not touch them. This forces players to maintain a mental model of the positions of the pieces. Moves are communicated via a recognized chess notation. Blindfold chess was considered miraculous for centuries but now there is greater recognition of people who can keep track of more than one simultaneous blindfolded game. In simultaneous blindfold play, an intermediary usually relays the moves between the players. Early history Blindfold chess was first played quite early on in the history of chess, with perhaps the first game being played by Sa'id bin Jubair (665–714) in the Middle East. In Europe, playing chess blindfolded became popular as a means of handicapping a chess master when facing a weaker opponent, or of simply displaying one's superior abilities. H. J. R. Murray in his book ''A History of Chess'' recorded another type of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Endgame
In chess and other similar games, the endgame (or end game or ending) is the stage of the game when few pieces are left on the board. The line between middlegame and endgame is often not clear, and may occur gradually or with the quick exchange of a few pairs of pieces. The endgame, however, tends to have different characteristics from the middlegame, and the players have correspondingly different strategic concerns. In particular, pawns become more important as endgames often revolve around attempting to promote a pawn by advancing it to the eighth . The king, which normally should stay hidden during the game should become active in the endgame, as it can help escort pawns to the promotion square, attack enemy pawns, protect other pieces, and restrict the movement of the enemy king. All chess positions with up to seven pieces on the board have been solved, that is, the outcome (win, loss, or draw) of best play by both sides is known, and textbooks and reference works teach th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ibn Khallikan
Aḥmad bin Muḥammad bin Ibrāhīm bin Abū Bakr ibn Khallikān) ( ar, أحمد بن محمد بن إبراهيم بن أبي بكر ابن خلكان; 1211 – 1282), better known as Ibn Khallikān, was a 13th century Shafi'i Islamic scholar who compiled the celebrated biographical encyclopedia of Muslim scholars and important men in Muslim history, ''Wafayāt al-Aʿyān wa-Anbāʾ Abnāʾ az-Zamān'' ('Deaths of Eminent Men and History of the Sons of the Epoch'). Life Ibn Khallikān was born in Erbil on September 22, 1211 (11 Rabī’ al-Thānī, 608), into a respectable family that claimed descent from Barmakids, an Iranian dynasty of Balkhi origin. Other sources describe him as Kurdish. His primary studies took him from Arbil, to Aleppo and to Damascus, before he took up jurisprudence in Mosul and then in Cairo, where he settled. He gained prominence as a jurist, theologian and grammarian. An early biographer described him as "a pious man, virtuous, and learned; amiable ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caliph Of Baghdad
The Abbasid caliphs were the holders of the Islamic title of caliph who were members of the Abbasid dynasty, a branch of the Quraysh tribe descended from the uncle of the Islamic prophet Muhammad, Al-Abbas ibn Abd al-Muttalib. The family came to power in the Abbasid Revolution in 748–750, supplanting the Umayyad Caliphate. They were the rulers of the Abbasid Caliphate, as well as the generally recognized ecumenical heads of Islam, until the 10th century, when the Shi'a Fatimid Caliphate (established in 909) and the Caliphate of Córdoba (established in 929) challenged their primacy. The political decline of the Abbasids had begun earlier, during the Anarchy at Samarra (861–870), which accelerated the fragmentation of the Muslim world into autonomous dynasties. The caliphs lost their temporal power in 936–946, first to a series of military strongmen, and then to the Shi'a Buyid Emirs that seized control of Baghdad; the Buyids were in turn replaced by the Sunni Seljuk Turks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knight's Tour
A knight's tour is a sequence of moves of a knight on a chessboard such that the knight visits every square exactly once. If the knight ends on a square that is one knight's move from the beginning square (so that it could tour the board again immediately, following the same path), the tour is closed (or re-entrant); otherwise, it is open. The knight's tour problem is the mathematical problem of finding a knight's tour. Creating a program to find a knight's tour is a common problem given to computer science students. Variations of the knight's tour problem involve chessboards of different sizes than the usual , as well as irregular (non-rectangular) boards. Theory The knight's tour problem is an instance of the more general Hamiltonian path problem in graph theory. The problem of finding a closed knight's tour is similarly an instance of the Hamiltonian cycle problem. Unlike the general Hamiltonian path problem, the knight's tour problem can be solved in linear time. Histor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Opening
A chess opening or simply an opening is the initial stage of a chess game. It usually consists of established theory; the other phases are the middlegame and the endgame. Many opening sequences have standard names such as the "Sicilian Defense". ''The Oxford Companion to Chess'' lists 1,327 named openings and variants, and there are many others with varying degrees of common usage. Opening moves that are considered standard are referred to as "book moves", or simply "book". When a game begins to deviate from known opening theory, the players are said to be "out of book". In some openings, "book" lines have been worked out for over 30 moves, as in the classical King's Indian Defense and in the Najdorf variation of the Sicilian Defense. Professional chess players spend years studying openings, and continue doing so throughout their careers, as opening theory continues to evolve. Players at the club level also study openings but the importance of the opening phase is smaller t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Strategy
Chess strategy is the aspect of chess play concerned with evaluation of chess positions and setting of goals and long-term plans for future play. While evaluating a position strategically, a player must take into account such factors as the relative value of the pieces on the board, pawn structure, king safety, position of pieces, and control of key squares and groups of squares (e.g. diagonals, open files, and individual squares). Chess strategy is distinguished from chess tactics, which is the aspect of play concerned with the move-by-move setting up of threats and defenses. Some authors distinguish static strategic imbalances (e.g. having more valuable pieces or better pawn structure), which tend to persist for many moves, from dynamic imbalances (such as one player having an advantage in piece ), which are temporary. This distinction affects the immediacy with which a sought-after plan should take effect. Until players reach the skill level of "master", chess tactics tend to u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shatranj
Shatranj ( ar, شطرنج; fa, شترنج; from Middle Persian ''chatrang'' ) is an old form of chess, as played in the Sasanian Empire. Its origins are in the Indian game of chaturaṅga. Modern chess gradually developed from this game, as it was introduced to Europe by contacts in Muslim Al-Andalus (modern Spain) and in Sicily in the 10th century. Etymology and origins The Persian word ''shatranj'' ultimately derives from Sanskrit ( sa, चतुरङ्ग; ') (''catuḥ'': "four"; ''anga'': "arm"), referring to the game of the same name: Chaturanga. In Middle Persian the word appears as ''chatrang'', with the 'u' lost due to syncope and the 'a' lost to apocope, such as in the title of the text ''Mâdayân î chatrang'' ("Book of Chess") from the 7th century AD. In Persian folk etymology, a Persian text refers to Shah Ardashir I, who ruled from 224 to 241, as a master of the game: "By the help of Providence, Ardeshir became more victorious and warlike than all, on t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shi'a
Shīʿa Islam or Shīʿīsm is the second-largest Islamic schools and branches, branch of Islam. It holds that the Prophets and messengers in Islam, Islamic prophet Muhammad in Islam, Muhammad designated Ali, ʿAlī ibn Abī Ṭālib as his Succession to Muhammad, successor (''khalīfa'') and the Imamah (Shia doctrine), Imam (spiritual and political leader) after him, most notably at the event of Ghadir Khumm, but was prevented from succeeding Muhammad as the leader of the Muslims as a result of the choice made by some of Companions of the Prophet, Muhammad's other companions (''ṣaḥāba'') at Saqifah. This view primarily contrasts with that of Sunni Islam, Sunnī Islam, whose adherents believe that Muhammad did not appoint a successor before Death of Muhammad, his death and consider Abu Bakr, Abū Bakr, who was appointed caliph by a group of senior Muslims at Saqifah, to be the first Rashidun, rightful (''rāshidūn'') caliph after Muhammad. Adherents of Shīʿa Islam are c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
