Past competition questions and solutions available online through Parabola Magazine. Below are some links to the solutions published through the Parabola website.

2017: problems and solutions, competition winners

2016: problems and solutions, competition winners

2015: problems and solutions, competition winners

2014: problems and solutions, competition winners

2013: problems and solutions, competition winners

2012: problems and solutions, competition winners

2011: problems and solutions, competition winners

2010: problems and solutions, competition winners

2009: problems and solutions, competition winners

2008: problems and solutions, competition winners

2007: problems and solutions, competition winners

2006: problems and solutions, competition winners

2005: problems and solutions, competition winners