json.grade @result[:grade]
json.gold @result[:gold]
json.experience @result[:experience]
json.challenge_chooses_count @result[:challenge_chooses_count]
json.choose_correct_num @result[:choose_correct_num]
json.test_sets @result[:test_sets]
json.prev_game @result[:prev_game]
json.next_game @result[:next_game]