Achievement: No Error Streak VI
No Error Streak VI
5000 XP
Make no error for 200 problems.
238 users completed this achievement.
Completed by melomorphox, PepinoNegro,
Vagabonk, joe.seki, Lethologian, 
Landoriol Goplayer, Datsuzoku, gartentom, 
fo76, 
Элина Алагозова and more.
