The 6/55 Grand lotto was added by PCSO last April 2010 and become one of the most popular major lotto game until today. https://645.gg/%eb%a1%9c%eb%98%90%eb%8b%b9%ec%b2%a8%ec%98%88%ec%83%81%eb%b2%88%ed%98%b8-%eb%8d%94-%eb%86%92%ec%9d%80-%ed%99%95%eb%a5%a0%ec%9d%84-%ec%9c%84%ed%95%9c-%ec%a0%84%eb%9e%b5%ea%b3%bc-%ed%8c%81/