Achievement: No Error Streak VI
No Error Streak VI
5000 XP
Make no error for 200 problems.
231 users completed this achievement.
Completed by gartentom,
fo76, 
Элина Алагозова, Георгий, 
Akbar, Hanagasumi, Callyster, 
Greybeard Go, Elim123, Sus.D.Amoga1000 and more.
