Above is the front cover of Archie Comics #112, dated August 1960 (the month I was born). It shows Archie studying a chess position! I just bought what appears to be the only copy available for sale on the Internet for the princely sum of $8.35, including shipping. Thank you, Bill and Jerry Wall, the publishers of White Knight Review! I learned of the comic from an article in the May/June issue of White Knight Review, a chess magazine that is available for free on the Internet here. It's a good read - check it out!
UPDATE: Here's an interesting article by Kerry Lawless (with a surname like that, let's hope he's never a criminal defendant), "Chess In Comic Books." There's no shortage of chess-themed comic book covers, it seems.