Movies and animations

Squid Game is a South Korean survival drama television series. The series revolves around a secret contest where 456 players, all of whom are in deep financial hardship, risk their lives to play a series of deadly children's games for the chance to win a 45.6 billion south Korean won (US$35 million) prize. The title of the series draws from a similarly named Korean children's game.

In the 9th episode of the 1st season, before the last game a coin toss desides who of two last player with go first. And impossible triangle and impossible square are minted on the coin.