Abu-Bakr Muhammad ben Yahya as-Suli

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Abu-Bakr Muhammad ben Yahya as-Suli (c. 880946) was an Arab shatranj (an ancestor of chess) player who came to prominence sometime in between 902 and 908 when he beat al-Mawardi, the court shatranj champion of al-Muktafi, the Caliph of Baghdad. Al-Mawardi was so thoroughly beaten he fell from favour, and was replaced by as-Suli. After al-Mukafti's death, as-Suli remained in the favour of the succeeding ruler, al-Muqtadir and in turn ar-Radi.

As-Suli's shatranj-playing ability became legendary and he is still considered one of the best Arab players of all time. His biographer ben Khalliken, who died in 1282, said that even in his lifetime great shatranj players were said to play like as-Suli. Documentary evidence from his lifetime is limited, but the endgames of some of the matches he played are still in existence. His skill in blindfold chess was also mentioned by contemporaries. As-Suli also taught shatranj. His most well known pupil is al-Lajlaj ("the stammerer").

One of his most prominent achievements is his book, Kitab Ash-Shatranj (Book of Chess), which was the first scientific book ever written on chess strategy. It contained information on common chess openings, standard problems in middle game, and annotated end games. It also contains the first known description of the knight's tour problem. Many later European writers based their work on modern chess on as-Suli's work. Apart from his chess book he also wrote several historical books.

Upon the death of ar-Radi in 940, as-Suli fell into disfavour with the new ruler due to his sympathies towards Shi'a Islam and as a result had to go into exile at Basra where he spent the rest of his life in poverty. As-Suli's great-grandfather was the Turkish prince Sul-takin, and his uncle the poet Ibrahim (ibn al-'Abbas as-Suli).

[edit] as-Suli's Diamond

Image:chess_zhor_26.png
Image:chess_zver_26.png
a8 b8 c8 d8 e8 f8 g8 h8
a7 b7 c7 d7 e7 f7 g7 h7
a6 b6 c6 d6 e6 f6 g6 h6
a5 b5 c5 d5 e5 f5 g5 h5
a4 b4 c4 d4 e4 f4 g4 h4
a3 b3 c3 d3 e3 f3 g3 h3
a2 b2 c2 d2 e2 f2 g2 h2
a1 b1 c1 d1 e1 f1 g1 h1
Image:chess_zver_26.png
Image:chess_zhor_26.png
Black to move, White wins
This ancient position is so difficult that there is no one in the world who would be able to solve it, except those I have taught to do so. I doubt whether anyone did this before me.

This was said by as-Suli.

—12th century manuscript from the library of Sultan Abdul Hamid[1]


as-Suli created a shatranj problem called "as-Suli's Diamond" that went unsolved for over a thousand years.[2] David Hooper and Ken Whyld studied this problem in the mid-1980s but were unable to crack it. It was finally solved by Russian Grandmaster Yuri Averbakh.[1][3]

As this is a shatranj, the "queen" (counsellor) is a very weak piece, able to move only a single square diagonally.

[edit] Notes

  1. ^ a b Damsky, Yakov (2005), The Book of Chess Records, Batsford, pp. 166–167, ISBN 0-7134-8946-4 
  2. ^ Shenk, David, The Immortal Game: A History of Chess 
  3. ^ Ree, Hans (2000), The Human Comedy of Chess, Access Publishers Network 

[edit] References