What about the “King's Pawn Opening: King's Knight, Irish, Chicago Gambit” which is 45 letters(not including colons, commas, apostrophes, or spaces)
Longest opening name?
I actually played the following. It's called: "Ruy Lopéz Opening: Morphy Defense, Anderssen Variation"
i got this in one of my games
Sicilian Defense: Hyperaccelerated Dragon, Fianchetto, Pterodactyl, Exchange Variation
King's Gambit Accepted: Salvio, Silberschmidt Defense, Anderssen Counterattack... idk what goes after lol
Not the longest but pretty long anyways [Event "Aserew12phone vs stealthydude100"] [Site "Chess.com"] [Date "2024-10-01"] [White "Aserew12phone"] [Black "stealthydude100"] [Result "1-0"] [WhiteElo "494"] [BlackElo "457"] [TimeControl "180+2"] 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 5. e5 g6 6. O-O Bg7 7. Re1 f6 8. Nc3 fxe5 9. Nxe5 Bb7 10. Nf3 d5 11. d3 Ne7 12. Na4 c4 13. dxc4 dxc4 14. Bg5 Qxd1 15. Raxd1 h6 16. Bxe7 Kxe7 17. Nc5 Bc8 18. b4 Rb8 19. a3 Bc3 20. Re3 Bb2 21. g3 Bxa3 22. Rxa3 1-0
Tennison gambit: Intercontinental ballistic missile variation