Mathematical Olympiad Problems

Official Problem Resources

• The official website for the Irish Mathematical Olympiad may be found here.
• The official IMO website is found here.
• The website for the Dublin Area IMO training sessions (which take place in UCD) may be found here.
• Next year's olympiad: IMO 2011 Amsterdam
• An excellent resource for problems is John Scholes' website here.

Problem Sets and Notes

• Notes on the Pigeonhole Principle (05/12/2009)
• Notes on the Principle of Induction (16/01/2010)
• My Problem Set 2009 (28/02/2009)
• My Problem Set 2007 (24/03/2007)

Past papers

• IMO 2007 Day 1
• IMO 2007 Day 2
• IMO 2006 Day 1
• IMO 2006 Day 2
• Irish Maths Olympiad 2005
• Irish Maths Olympiad 2006