Katra Gorobaka (gorobaka "to cross from one side to another") is a mancala game played by the Sakalava people, which occupy the Western edge of the island from Toliara in the south to Sambirano in the north. They speak several dialects of the Malagasy language, which is a branch of the Malayo-polynesian language group derived from the Barito languages spoken in southern Borneo and are numbering approximately 700,000 in population. The game was first described by André-Jean Dandouau (1874-1924) in 1909.