English: A Jew and a Muslim playing chess in 13th century al-Andalus. El Libro de los Juegos, commissioned by Alphonse X of Castile, 13th century. Madrid,
''El Libro de los Juegos'', commissioned by Alphonse X of Castile, '''13th century'''. Madrid, Escurial Library, fol. 63 recto. A Jew and a Muslim playing chess in 13th century al-Andalus.