, th International
Mathematical
Olympiad
Bremen Germany 2009
Problem Shortlist
with Solutions
The Problem Selection Committee
, The Note of Confidentiality IMPORTANT
We insistently ask everybody to consider the following IMO Regulations rule:
These Shortlist Problems
have to be kept strictly confidential
until IMO 2010.
The Problem Selection Committee
Konrad Engel, Karl Fegert, Andreas Felgenhauer, Hans-Dietrich Gronau,
Roger Labahn, Bernd Mulansky, Jürgen Prestin, Christian Reiher,
Peter Scholze, Eckard Specht, Robert Strich, Martin Welk
gratefully received
132 problem proposals submitted by 39 countries:
Algeria, Australia, Austria, Belarus, Belgium, Bulgaria, Colombia,
Croatia, Czech Republic, El Salvador, Estonia, Finland, France,
Greece, Hong Kong, Hungary, India, Ireland, Islamic Republic of
Iran, Japan, Democratic People’s Republic of Korea, Lithuania,
Luxembourg, The former Yugoslav Republic of Macedonia,
Mongolia, Netherlands, New Zealand, Pakistan, Peru, Poland,
Romania, Russian Federation, Slovenia, South Africa, Taiwan,
Turkey, Ukraine, United Kingdom, United States of America .
Layout: Roger Labahn with LATEX & TEX
Drawings: Eckard Specht with nicefig 2.0