Looking for a challenging algebra text? Preparing for MATHCOUNTS or the AMC exams? Check out Art of Problem Solving's Introduction to Algebra by Richard Rusczyk.
The International Mathematical Olympiad (IMO) Shortlisted Problems. Before the IMO takes place the IMO Problem Selection Committee chooses a subset of the proposed problems of all countries (IMO LongList, ILL). This subset contains 20-30 problems and is called IMO ShortList (ISL). This ISL is used to select the 6 IMO problems. You can download those materials as distributed to team leaders during IMO as either scanned original booklets or as provided ebook by the Problem Selection Committee (for a few recent years). Have a look here:
Note: Some countries use the ISL to select their national team for the next IMO. Thus the ISL problems from the most recent IMO are confidential until next year\'s IMO.
Below you find those problems which are already posted on the forum and you may discuss and contribute solutions. Enjoy and thanks!
