A manqala game. From http://www.wikimanqala.org/wiki/Adji-boto:'Adji-boto ('pebble boat') is played by the Saramaccans who live on the upper Saramacca river in Suriname. The Saramaccans are a tribe of which was formed by escaped slaves. The first field study on the game was conducted by the American ethnologue Melville J. Herskovits in 1928 in the village of Beidotti. The game resembles mancala games known in Benin, West Africa. The game is used to entertain the dead during the ten-day period preceding burial in the kre wosu, or house of mourning. The play is only carried out during the daylight hours because in the night the yorkas, or ghosts of the dead, would come and play with us and eventually carry away our spirits. The boards are only carved by old widowed men because this is deemed a serious issue.' - BoardGameGeek