Problem of the Fortnight

The Problem of the Fortnight is open to all undergraduate students, regardless of major. Submit your written solution, along with your name and email address, to the Math Department office (Warner Hall Room 2006) by 2:00 p.m..on the date listed on the problem.

Problems for the fall 2017 term:

  1. Eclipse; solutions are due on Friday, September 1, 2017;
  2. Trifold; solutions are due on Friday, September 15, 2017; 
  3. Envelopes; solutions are due on Friday, September 29, 2017; 
  4. Introvert Convention; solutions are due on Friday, October 13, 2017;
  5. Recruitment; solutions are due on Friday, November 3, 2017; 
  6. Line Up; solutions are due on Friday, November 17, 2017; 
  7. Holiday Lights; solutions are due on Friday, December 8, 2017; 

Prior Years Problems

2016
  1. 2-3-4 Triangle; solutions due on Friday, September 2, 2016; solution 2-3-4-Triangle solution
  2. GCD; solutions due 2:00 p.m. on Friday, September 16, 2016; GCD solution
  3. Quadratic to a Quadratic; solutions due 2:00 p.m. on Friday, September 30, 2016; Quadratic to a Quadratic solution
  4. Fire; solutions are due 2:00 p.m. on Friday, October 14, 2016. Fire Solution
  5. Trick or Treat; solutions are due 2:00 p.m. on Friday, October 28, 2016. Trick or Treat Solution
  6. Largest Triangle; solutions are due 2:00 p.m. on Friday, November 11, 2016.  Largest Triangle Solution
  7. Around and Around; solutions are due 2:00 p.m. on Friday, December 2, 2016. Around and Around Solution
  8. Center Court; solutions are due 2:00 p.m. on Friday, January 20, 2017. Center Court Solution
  9. Team Uniform Height; solutions are due 2:00 p.m. on Friday, February 3, 2017.  Team Uniform Height Solution
  10. Lunch; solutions are due 2:00 p.m. on Friday, February 17, 2017.  Lunch Solution
  11. Blue and Gold; solutions are due 2:00 p.m. on Friday, March 3, 2017.  Blue and Gold Solution
  12. Where to Live; solutions are due 2:00 p.m. on Friday, March 17, 2017. Where to Live Solution
  13. Stones; solutions are due 2:00 p.m. on Friday, April 7, 2017. Stones Solution
  14. Pens; solutions are due 2:00 p.m.. on Friday, April 21, 2017. Pens Solution
2015
  1. Square Mosaics; solutions due on Friday, September 11, 2015. Congratulations to Youngin Kim for her winning solution.
  2. A Nearly Pythagorean Identity; solutions due on Friday, September 25, 2015. Congratulations to Ben Weyeneth for his winning solution.
  3. A Unique Distribution; solutions are due on Friday, October 9, 2015. There were no winning solutions; here is a solution by Dr. Boeckner.
  4. Intersect Function; solutions are due on Monday, October 26, 2015. There were no winning solutions; here is a solution by Dr. Boeckner.
  5. Polaris Stock Exchange; solutions are due on Monday, November 9, 2015. There were no winning solutions; here is a Maxima solution by Dr. Willis.
  6. Coins; solutions are due by 2:00 p.m.. on Friday, November 20, 2015; here is a solution by Dr. Boeckner.
  7. Which Book; solutions are due by 2:00 p.m.. on Friday, December 4, 2015; here is a solution by Dr. Boeckner, and an alternative solution by Dr. Willis
  8. Bullseye; solutions are due by 2:00 p.m.. on Friday, January 22, 2016.  Here is a solution by Dr. Boeckner.
  9. Biketracks; solutions are due by 2:00 p.m.., Friday, February 5, 2016.  Here is a solution by Dr. Boeckner.
  10. Ratrace; solutions are due by 2:00 p.m.. on Friday, February 19, 2016.  Here is a solution by Dr. Boeckner.
  11. Roots; solutions are due by 2:00 p.m.. on Friday, March 4, 2016. Congratulations to Youngin Kim for her winning solution.
  12. Tilings; solutions are due by 2:00 p.m.. on Friday, March 18, 2016.  Here is a solution by Dr. Boeckner.
  13. Octahedron; solutions are due by 2:00 p.m. on Friday, April 8, 2016.  Here is a solution by Dr. Boeckner.