In last Edu Div2 round 12000ish people solved 3 problems. Today's Div 2, 8000ish people solved 3. What has happened all of a sudden since last 2 contests? My rank is going extremely down even after improving earlier I used to get positive change even after solving 2 problems. I have seen profiles of people getting positive change in specialist range after solving 2 div 2s in a contest getting ranks under 3k. But since past 2 contests it seems impossible for even a pupil to get a positive change after solving 3. I solved 3 problems today but could only get 6460 rank at the end.