Umineko no Naku Koro ni Chiru Episode 6: Dawn of the Golden Witch

Battler assumes control of the sixth game, wielding his new Golden Truth as he parries the logical blows of the detective-and-witch, Erika Furudo. For Battler, what began as a contest over the existence of magic has become a fight to revive the fiery, vibrant Beatrice of his early clashes on the game board. The logical loops and rules of the game were already complex; now, as the game master, Battler must quickly learn how to shape the events to his and Beatrice's ultimate ends without getting locked in a closed room by Erika, the witch of truth!

(Source: Yen Press)