Gonggi

Gonggi is a Korean playground game traditionally played with five or more small pebbles about the size of grapes, or with plastic stones in their place. The stones are called gonggitdol. It can be played alone or with friends, and it has five levels of increasing difficulty that test hand-eye coordination, dexterity and timing. Similar games are found in other countries: Persians historically played one they called Yek Ghol Do Ghol, which has been a popular children's pastime in Iran, and in the Kurdistan Region of Iraq it is known as Halma-qo. The game has many regional names, including Jjagebatgi in North Gyeongsang Province, Salgu in South Gyeongsang Province, Trupan in Kashmir and Datjjakgeoli in South Jeolla Province. In English it is also called Korean Jacks or Five Stones.