Ayatollah Khomeini referred to Jame'ol Madarek for his Fatwa, and chess was considered sound (Halal) to play after more than 1,000 years among Shiat Muslims. There are other books claimed to be written by Ayatollah Haj Seyyed Ahmad Khansari; however, these were published after his death against his will. Therefore, some believe that these books have been modified from their original versions.
Ayatollah Khomeini's Fatwa on Jame'ol Madarek and the permissibility of chess among Shiat Muslims are connected to the controversy surrounding the authenticity of books attributed to Ayatollah Haj Seyyed Ahmad Khansari, which were published after his death.