Great variety and many links to math and logic puzzles. Categories include: Puzzles for everyone; Puzzles for Kids and forTeenagers; Puzzles for Mathematiciansand Logicians. Site created and maintained by Barcodes Inc.

This web page index on Syvum contains FREE online brain teasers and math puzzles at three levels of difficulty - Easy, Medium and Challenging. All the brain teasers and math puzzles are interactive.

Monthly brain teaser supplied by National Center for Educational Statistics. Solutions require application of mathematics and/or statistics. Solutions are listed at the bottom of the page

tricks and rules for quickly calculating certain types of math problems. There are also some entertaining trivia and math facts.

Every two or three weeks the Mathematics Department posts a challenge problem, one that typically requires mathematical creativity, but not theory beyond first quarter calculus.

Puzzles related to mirrors, numbers, hex-loops, weights, battleship, triangles, cris-crosses, grids, and more. Solutions provided

Weekly problems intended for elementary school students grades 3-6 (ages 8-12), but may also be appropriate for students in other grades

Many mathematical games and puzzles. Part of a larger site of "Interactive Mathematics"

Mancala is a strategy game. Gather more beads than your opponent. This is a site maintained by Neil Rashbrook Org.

Archive of problems of the week for each year since 1996.

An "evolving collection" of little-known, unsolved mathematics problems compiled by Steven Finch, Research and Development Team, MathSoft, Inc.

Links to a variety of math puzzles including Swarthmore´s Problem-of-the-Week, MathCounts Organization, Period.com´s Puzzles, Car Talk´s Puzzler, Bradley University´s Problem of the Week, Quantum Brainteasers, and Puzzle Contests.

13 puzzles re-printed (with permission) from the book MINDBENDERS by Robert Eastaway and David Wells." Answers are included.

There are hundreds of problems and solutions here grouped by the month when they were first published

The puzzles presented here are selected for the deceptive simplicity of their statement, or the elegance of their solution.

Historical recounting of solving every position of the Rubik Cube using computers (site has active graphics for illustration) and includes reference to “God's algorithm” which is related to the ways to solve a Rubik's Cube puzzle. Site was created by the joint efforts of Tomas Rokicki, a programmer from Palo Alto, California, Herbert Kociemba, a math teacher from Darmstadt, Germany, Morley Davidson, a mathematician from Kent State University, and John Dethridge, an engineer at Google in Mountain View

Puzzles in a poem. From web site of ScottCrass, Math Dept, California State University at Long Beach.

The object of the game is to identify the 6 ´Sets´, of three cards each, from 12 cards laid out on the screen.

Southwest Missouri State University Math Problem Corner. Page is divided into three levels of problems: High School, Advanced, Challenge.

Demonstration (with mathematics) of solution to Towers of Hanoi. Copyright © 1996-2004 Alexander Bogomolny.

This page will present a difficult problem which you are encouraged to solve. " It is changed regularly and is part of the Math Club site of the University of California at San Diego.

Site created by the students in the Math Club of the University of California at San Diego. "The Games page features links to various math games, including Nim, Reversi, and the Game of Life

Board game of strategy with origins in Africa. Download the game provided that you do not try to sell it to anyone. .