Recreations
- 261
- Polish Mathematical Olympiad
- Math olympiads for Polish high school students. Features problem archives from the Austrian-Polish Mathematics Competition, Baltic Team Contest, Poland Mathematical Olympiad.
- 263
- Putnam Exam Information
- Results from the Putnam competition, old exams, and problem archives. Includes problem of the day, selected from over 540 different Putnam, National or International Olympiad problems.
- 264
- Redwood Empire Mathematics Tournament
- Annual event held at Humboldt State University for all middle and high schools students.
- 265
- Sigma Math League
- UJS mathematics league that promotes problem solving through competition. Contests for grades 6, 7, 8, 9.
- 266
- The Continental Mathematics League
- A series of math meets for US grades 2-9, a calculus league for the high school, and a Java computer contest.
- 267
- The Mandelbrot Competition
- Includes introduction to contest, news, memos, resources and on-line registration.
- 268
- The Math League
- Specializes in math contests, books, and computer software designed for students from the 4th grade through high school.
- 269
- Code Book Cipher Challenge Solution Page
- Gives solution to Singh's Cipher Challenge. Includes the list of authors, the order of solutions, and the steps to create a team. In HTML, PDF and postscript format.
- 270
- The Straight Dope: On "Let's Make a Deal"
- Thorough discussion of the problem, with solutions explained.
- 271
- A New Approach to the Monty Hall Problem
- Introduces the problem and tries to look at the problem in a new light.
- 272
- Mathnet : The Car and the Goats
- Introduction to the problem and the controversy. As well as a simulator. Includes a link to the next page which explains the maths behind the problem.
- 274
- Monty Hall Strikes Again
- Dr Math answers a reader question and explains why the puzzle works the way it does.
- 276
- Ask Dr. Math : Tower of Hanoi
- Includes a small introduction to the Tower of Hanoi including History. Goes on to talk about different ways of tackling the problem.
- 277
- Discovering the Mathematics Behind the Game
- Guides readers to find the solution to the problem themselves but also has a link to the solution.
- 278
- François Edouard Anatole Lucas
- Biography of Edouard Lucas, inventor of the Tower of Hanoi problem.