Hi, I'm from Ukraine . this year mathematics B was hard as hell and as fo me it is impossible to complete this test with undergraduate knowledge of it ( and I'm really good at mathematics and could't make it, 2010 year test wasn't SO hard), also chemistry test contained a lot of questions about organic chemistry ( for example 2010 test had only 1 or 2 questions about it). Why the difficult level was so raised this year? It's just unfair, mathematics A was MUCH, MUCH easier (from the words of applicants) than B. 