olympiad problems + solutions

olympiad problem collections with solutions

solved olympiad problems, national - international - regional
all problems in one pdf file  - not only the geometry ones -
everything is in English - unless stated otherwise -
collecting all solved problem files from Competitions  mentioned in this blogspot page
besides the UK-USA-Canada tab (which means that there are more solved there)

past olympiad problems with solutions

international contests

ended

• Global Quarantine Mathematical Olympiad CGMO 2020 with solutions 
• Mediterranean Youth Mathematical Championship (MYMC) 2013, 2015-19 with solutions 
• Metropolises Olympiad 2016-21 with solutions 

ongoing

• Asian Pacific APMO 1989 - 2025 with solutions  (updated)
• Asian Pacific APMO 1989 - 2004 with solutions  by John Scholes (kalva)
• Balkan MO 2008-25 with solutions               (updated)
• Baltic Way 1990 - 2025 with solutions  (-09, -19, -22) (updated)
• Baltic Way 2009 Solutions in Fininsh  (Finnish) 
• Baltic Way 2002-06 with solutions for A4 print  from latex 
• Baltic Way 2002-06 with solutions for A5 print  from latex
• Benelux BxMO 2009-25 with solutions   (updated)
• Caucausus MO 2019-25 with solutions  (held in Russia)  (updated)
• Caucausus MO 2015, 2017-18 Solutions in Russian (Russian)
• CentroAmerican MO 1999 - 2003 with solutions  by John Scholes (kalva)
• Czech - Austrian - Polish - Slovak Match (CAPS) 2016, 2018-25 with solutions  (new)
• Dürer Math Competition 2019-21 with solutions   (held in Hungary)
• European Girls EGMO 2012-25 with solutions  (updated)
• European Mathematical Cup EMC 2012-25 with solutions (-2025) (updated)
• Francophone MO 2020-25 (OFM) with solutions (French) (updated)
• IMO Shortlist problems 2001-18 with solutions (IMO Shortlist 2019) (shall be updated soon)
• IMO Shortlist problems 1992 - 2000 with solutions, scanned most of them by Orlando Döhring, member of the IMO ShortList / LongList Project Group, in aops
• Iranian Geometry Olympiad (IGO) 2014 -25 with solutions (updated)
• Iranian Geometry Olympiad (IGO) Grading Scheme 2017 -25 (-18,-24) (new)
• Junior Balkan JBMO 2012-25 with solutions  (updated)
• Mathematical Náboj 2011-25 with solutions (held in Czech) 
• Mathematical Náboj 2008-10 Solutions in Czech (Czech)
• Maths Beyond Limits Camp Camp Brochures (2017-24, Balkans 2023-25) [google drive folder]
• Mediterranean (MMC) 2022 with solutions (new)
• Mediterranean (MMC) 2028-20 Solutions in N. Macedonian (N. Macedonian) (new)
• Midle European MEMO 2007-25 with solutions (-07, -09, -14)  (updated)
• Midle European MEMO 2007, 2009, 2014 Slovak with solutions (Slovak)
• Nordic NMC 1998 - 2025 with solutions (-23)   (updated)
• Nordic NMC 1987 - 2011 with solutions by Matti Lehtinen, from latex
• Romanian Master Mathematics RMM 2008-25 with solutions (held in Romania) (updated)
• Sharygin Geometry Olympiad 2007-19 (Sharygin 2020) (held in Russia) (shall be updated soon)
• Sharygin Geometry Olympiad 2005-06 EN in pdf (no solutions)
• Sharygin Geometry Olympiad 2005-06 Solutions in Russian (Russian)
• Tashkent International Math Olympiad (TASIMO) 2024-25 with solutions  (held in Uzbekistan) (new)
• Tournament of Towns Junior 2001-19 (solutions 2001-15)
• Tournament of Towns Senior 2001-19 (solutions 2001-15)
• Tuymaada 2012, 2016, 2018-25 with solutions  (held in Russia) (new)
• Tuymaada 2013-14 Solutions in Romanian  (new)
• World Math Team Competition (WMTC) 2010-15, 2017-18 EN with results, 2018 with solutions
• Zhautykov (IZHO) 2005-25 with solutions 2010, 2013-25 (held in Kazakhstan)  (updated)
• Zhautykov (IZHO) 2011-12 Solutions in Rusian   (new)

online contests

ended

• National Internet Math Olympiads (NIMO) Compendium (2011-17) with solutions (new) 
• Online Math Open (OMO) 2012-20 with solutions (- Fall 2020)   (updated) 

ongoing

• ELMO 1999, 2003, 2009-19 & ELSMO 2012-14, 2016-19 (some files have solutions)  (shall be updated soon)
• ELMO Shortlists 2010-14, 2017-19 (2013-14, 2017-19 solved)  (shall be updated soon)
• US Ersatz Math Olympiad (USEMO) 2019-25 with solutions (-25) (new)

national contests

• Auckland Mathematical Olympiad 2015-19, 2021 (New Zealand)
• All Soviet Union Math Competitions 1961-87 (99 out of 462 problems solved) translated by S/W engineer Vladimir Pertsel
• All Soviet Union Mathematical Olympiad 1961-92 with solutions by John Scholes (Kalva)
• Australian Scene with solutions: 2014, 2015, 2016, 2017, 2018
• Australian MO 2014-20 EN with solutions
• Canadian CMO 1969 - 2020, with solutions 1994 - 2020
• Estonian Math Competitions 1999, 2001-21 with solutions
• Hong Kong IMO Preliminary Selection Contest (IMOHKC) 2002-25 with solutions    (updated)
• Iberoamerican MO 1985 - 2003 with solutions  by John Scholes (kalva)
• Indian INMO 2000-19 with solutions
• Indian RMO 2000-10, CRMO 2011-18 with solutions
• IMAR 2008-17 with solutions (held in Romania)
• Iran IMO Booklet 2000-24
• Moscow Mathematical Olympiads  60 Odd Years of (1935-1997) with solutions, translated by D. Leites (ed.), without figures ,written by G. Galperin, A. Tolpygo, P. Grozman, A. Shapovalov, V. Prasolov, A. Fomenko
• Netherlands Dutch MO and TST 2008-20 with solutions
• New Zealand NZOMC Camp Selection Problems 2010-18 EN, NZMO 2019-20 with solutions
• Romanian JBMO TST 2012-19 with solutions
• Russian Mathematical Olympiad 1995 - 2002 with partial solutions by John Scholes (kalva)
• Saudi Arabia Mathematical Competitions (SAMC) 2010-24 (-12, -20) (updated)
• Serbian SMO 2008-17 with solutions
• Singapore Training 2001 (78 solved)
• Singapore TST 1995 - 2004
• South Africa SAMO Juniors 2015 - 1998 Questions, SAMO Juniors 2015 - 1998 Solutions
• South Africa SAMO Seniors 2015 - 1997 Questions, SAMO Seniors 2015 - 1997 Solutions
• USAJMO 2010-20 with solutions by Evan Chen
• USAMO 2000-20 with solutions by Evan Chen
• USA TST 2000-20, with solutions 2015-20
• USA TSTST 2011-19, with solutions 2014-19
• Vietnam IMO Booklet 2017-22 (-20)
• Western Australian Junior Mathematical Olympiad (WAJO) 2000-20 with solutions

sources are mentioned in the related tabs of this blog