Seo Hyung Seok, mostly known as A-Chess, is a South Korean rapper.
He has an uncommon history of participating in all seasons of Show Me the Money. In Show Me the Money 8, he received favorable reviews for his solid basics and decent skills.
He made his official debut in 2015 with the release of his full-length album "Pawn Tape".
(Source: NamuWiki || Translation: Cataa_Irwin)