The National Chemistry Olympiad has just finished today in my country. Two days ago, I have taken a selection test for IChO/Mendeleev ChO (this test is for both). Much to my surprise, I've been selected to go to Mendeleev ChO. The problem is, in less than 10 days, the competition is supposed to start and I can't find any great source of inorganic chemistry problems.
What do you recommend me to try? Would working problems from IChO, for example, help a bit? So far, I have worked only selection tests from my country. I would try some of the older MChO problems (earlier than 2013), but they are in Russian and Google Translate doesn't do a great job.
Thank you in advance.