My best mate (sadly no longer with us) thought he was a gun chess player. Was a member of the melbourne chess club. One day my old man (a boilermaker/welder) heard him talking about it and asked him if he’d like a game. Dad then Preceded to completely demolish him in less than ten minutes. I still remember the stunned look on my mates face as if he couldn’t believe that a mere tradesman had utterly wiped the floor with him when he’d been studying astrophysics at ANU. I never told him that my dad and his brother had grown up next door to a polish grand-master who’d fled his country before WWII and taught them how to play every night after school lol.