Very interesting. I'm intrigued by there choice of opening. The Hungarian opening.
The second oldest chess(shatranj) game registered/recorded

The so-called ''invincible Arab caliph'' really made some remarkable mistakes in the opening. As-Suli went for an immediate Sayyal (the pawn in f5) and his opponent did nothing to stop him. In fact the Caliph just went on playing his own tabiya (opening system) not caring much what as-Suli were doing. 7...a6? is weak, 9...exf5? is a mistake. Black accepts White's pseudo-gambit, basically giving away a center pawn for a flank pawn -- loss of material -- and so getting a pawn isolated on the f-file: positional disadvantage.
23. b4! is a sound move that shows how as-Suli was not only a strong tactician, but also a fine strategist. He has the advantage on the King-side, where he could target several structural weaknesses, primarily the f6 pawn. However, Black could counterattack on the Ferz-side where he has considerable forces and domination over the c-file. Before carrying out the final attack therefore, as-Suli decides to neutralize any possible counterplay of the opponent by an ingenious plan based on the solid and unmovable Alfil in c5.
32. Nfxd5! destroys the Caliph with a double attack on c7 - threatening to take the Rook - and on f8 - threatening Alfil and mate in 3 moves. Unless I'm missing something, Black couldn't save both Rook and Shah. 35. Nf4# is a nice checkmate with 5 pieces involved: 1 pawn, 2 Alfils, a Horse and a Rook. Finally I would call it an enjoyable and formative game, thanks for sharing!
Greetings to chess history fans, variant lovers, and shatranj players! I am now releasing the second oldest chess game recorded. It is the second of only two examples of shatranj found, the first as well as this game is found here:
http://www.chess-poster.com/english/notes_and_facts/oldest_chess_game.htm
and here: https://www.chess.com/forum/view/game-showcase/the-oldest-chess-game-recorded
Pasted from the first link:
"The following Chess game which was kindly provided to us by Dr. Rene Gralla, a lawyer and a free-lance journalist from Hamburg, Germany and also a writer for the German TV guide Hoerzu from 1991-2000, shows the second oldest great game of Shatranj that is known and that even ends with a checkmate in 35 moves! It was played between Abu-Bakr Muhammed Ben Yahya as-Suli (white) and the Caliph Abu 'l-Fadl Ja'far ibn Ahmad al-Mu'tadid (black). The latter is better known under his name Caliph al-Muqtadir bi-Allah around 920 A.D. at Baghdad, the capital of the Abbasid Caliphate. The opening that as-Suli and his prominent opponent played is called “Sayyal”, in English: “Torrent”.
Instead of the Queen, they had the Fers who could only move a square diagonally a time. Instead of the Bishops, they had the Al-fils who move diagonally skipping a square. Pawns could only move a square a time and could only be promoted to a Fers. The King, Rooks and Knights moved as usual. Castling was unknown and you could win by checkmate and by stalemate."
The first games of chess(then called shatranj) were played by the arabian people in the middle ages. A very famous shatranj master was Yahya as-Suli, who taught many other players and is well known.
Illegal moves by today's standards will be shown with *