{"status":"success","data":{"challenge":{"id":1,"challenge_date":"2026-10-17T00:00:00.000000Z","title":"Daily Challenge: Tactics, Rules & History","description":"Today's featured challenge from Tactics, Rules & History. A fresh set every day!","category_id":6,"question_ids":[95,100,97,221,226],"xp_reward":200,"created_at":"2026-10-17T11:35:00.000000Z","updated_at":"2026-10-17T11:35:00.000000Z","category":{"id":6,"name":"Tactics, Rules & History","slug":"tactics-and-rules","description":"The Laws of the Game, tactical revolutions (Catenaccio, Total Football, Tiki-Taka), and refereeing rules.","icon":"book-open","color_hex":"#A8B0B9","display_order":6,"is_active":true,"questions_count":24,"created_at":"2026-10-17T04:16:29.000000Z","updated_at":"2026-10-17T04:16:36.000000Z"},"is_completed":false}}}