The Libro de los Juegos also discusses a four-player chess variant known as four seasons chess.

Courier chess (German: kurierschach) was another popular variant in medieval Europe which had a significant impact on the development of orthodox Western chess and remained popular for over six centuries. It was initially developed in 13th century Germany and was played on a 12x8 board with several extra pieces like two couriers (German: läufer, which moved