American Mathematical Monthly Problems - 2020

The American Mathematical Monthly is an expository journal intended for a wide audience of mathematicians, from undergraduate students to research professionals. Each issue has a Problems and Solutions section where several new problems are proposed. Below you can find the solutions that I've submitted this year (pdfs will be available after the deadline). As regards the previous years, you can take a look through the following links (but beware of nerd sniping ): 2019 (40), 2018 (36), 2017 (40), 2016 (50), 2015 (48), 2014 (41), 2013 (29), 2012 (22), 2011 (22), 2010 (15), 2009 (13), 2008 (16), 2007 (15), 2006 (16), 2005 (22), 2004 (13), 2003 (13), 2002 (6), 2001-1993 (19).
For anyone who is interested in sharing hints and solutions, please feel free to contact me at:


Problem 12163 - 02 - T. Speckhofer (Austria).

Problem 12162 - 02 - Dao Thanh Oai (Vietnam) and L. Giugiuc (Romania).

Problem 12160 - 02 - H. Ohtsuka (Japan) and R. Tauraso (Italy).

Problem 12158 - 01 - H. Grandmontagne (France).

Problem 12156 - 01 - H. Ohtsuka (Japan).

Problem 12154 - 01 - M. Lukarevski (North Macedonia).

Problem 12153 - 01 - O. Kouba (Syria).