"King's Gambit" is the seventy-sixth episode of the Yu-Gi-Oh! ARC-V anime. It first aired in Japan on October 4, 2015.
The Executive Council and Security finally clash together over the custody of Dennis. Although the Executive Council manages to seal away Security's powers, its leader Roger announces a new plan called "King's Gambit". On the other hand, "that teenage boy" appears before Dennis, who is injured thanks to the Duel.