Biseokchigi

Biseokchigi is a category of traditional Korean games built around the skillful throwing or kicking of flat stones, known by a range of regional names including biseokchagi, biseokkagi, mogjakkagi, jakkagi and bisasaeggi. Its precise origin is unrecorded, and the many different regional names are themselves evidence of how unclear that origin is, though oral tradition places its emergence in the late Joseon period; because it needs nothing more than flat stones and open ground, the game was able to develop independently in many regions at once, and place names referencing old monument streets around the country are thought to connect to it. Play can be individual or team-based, beginning with a rock-paper-scissors contest to decide who attacks first. The defending side stands a stone upright on a drawn line, and the attacking side throws stones to try to knock it down; whoever's stone is still standing after all rounds are complete wins. Regional variants add advanced throwing techniques using the shoulder, head, foot or armpit rather than a simple hand throw.