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• Games: Puzzles  (755)

• A+ Math - Interactive math help for K-12 students with flashcards, Math Wordfind, Homework Helper and worksheets.
• Aha! Puzzles - Puzzles, books, games and tests with designed by Lloyd King, author of "Test Your Creative Thinking".
• Algebraic Math Puzzles - A collection of puzzles at high school level. Does not include answers.
• Alien Tiles - Object of puzzle is to try to get color pieces to create certain patterns in cube.
• Alphametic Puzzles - Numerous puzzles, links, puzzle solver, and a generator.
• Alphametics and Cryptarithms - Puzzles in which letters or symbols are substituted for the digits in an arithmetical operation like addition.
• Alphametics Page - Compiled by Mike Keith. Examples of various genres.
• Archive Creative puzzles - Interactive puzzle archive with descriptions for puzzle construction and a special childrens puzzle page.
• BCIT Mathematical Entertainment - Famous mathematical problems, puzzles, facts, games and trivia.
• Ben Robinson's Cross-Number Puzzles - A collection of cross-number puzzles: similar to crosswords, but using digits instead of letters. Many involve complex mathematical reasoning.
• Brain Teasers and Maths Puzzles - Interactive logical and mathematical puzzles with feedback and detailed solutions.
• Brain Teasers by QBrute - Original brain teasers with solutions.
• Clever Games for Clever People - Games that interest John Conway including Rim and Traffic Jam.
• Colorful Mathematics - Educational software presents advanced mathematics to K-12 students in a game-oriented approach, using coloring and drawing techniques to illustrate concepts from graph theory and computer science.
• The Contest Center - Classic puzzles and riddles requiring only simple logic and elementary math.
• Contest Center Cryptarithms - Examples of cryptarithms, with prize competitions for subscribers.
• Curious Numbers - A tribute to the lighter side of math including puzzles, humor, trivia, quotes, inspirations, and math links.
• Downloadable and online games - A variety of Flash- and Java-based games and puzzles.
• The Enigmatic World of Philip Carter - Collection of brain teasers from the author of IQ books.
• Free Puzzle Collections - Educational and recreational puzzles for teachers, students and parents. Each puzzle is graded by difficulty and has a hint. Solutions are available to members.
• Group Games - Animations that develop the theory behind such puzzles as the Rubik cube.
• Interactive Mathematics Miscellany and Puzzles - Java-based math resource including articles, puzzles and links.
• iQED! - Lateral puzzles from "Puzzles for the High IQ" author Lloyd King and founder of The Puzzle Wizards SiteRing.
• Ken Duisenberg's Puzzle of the Week Archives - Challenging puzzles and problems.
• Logic Puzzles - Collection of original numerical-logic puzzles. Many are long and difficult, involve sorting and comparing long lists and are intended to be solved using a good spreadsheet program.
• Logicville - Educational puzzles, brain teasers, and word games such as anagrams, cryptograms, alphametics, doublets, tangrams.
• Magic Math Kingdom - Learn math through games and quiz-oriented tutorial.
• Math Forum - Resources, problems and forum for teachers and students in mathematics.
• Math Puzzles - Logic puzzles and riddles with some solutions.
• MatheMagic - A collection of mathematical puzzles, jokes and articles.
• MatheMajik - Indian site featuring calculation tricks and math puzzles.
• Mathematical Recreations - Detailed exploration of a selection of mathematical topics.
• Mathproblems.info - Over one hundred and fifty math problems ranging from basic math to differential equations.
• Mathpuzzle.com - Celebrates math puzzles and mathematical recreations.
• Mathschallenge.net - A website dedicated to the puzzling world of mathematics and computer programming, with a discussion forum.
• Mathwizz - Interactive math problems for abilities ranging from middle school to university.
• Mixed Up Math - Logic problems, where equations are mixed up. In various formats like boxes, crosses, diagonals, mazes. Free download.
• Mr Titen's More Than Math - Mathematics teacher provides puzzles for students.
• Nandor's Exhaustive Chemical Words Pages - Lists all the English words, word squares, and magic squares that can be written using chemical symbols.
• Nick's Mathematical Puzzles - A collection of puzzles, with hints, solutions, and links to related mathematical topics.
• The Null Set - Puzzles collected by Guy Kindler, most requiring some undergraduate mathematical knowledge. Some hints are provided.
• Paul Hsieh's Puzzles - Logical and mathematical brain teasers, with an indication of difficulty. Hints are provided; solutions are available by email.
• Perfect Times - Teaches and assesses fluency of multiplication and division tables using online cards. Submit data and compare results.
• Polyhedra Links - Pastime and activity links for various geometric patterns, polygons and polyhedra by Jill Britton.
• Polymorf - Symmetry of Polyhedra - A demonstration of the symmetry and transformational properties of the Platonic and Archimedean solids.
• A Primer on Cryptarithmetic - Instructions, examples, references and links.
• 15 Puzzle of Sam Lloyd - Play online Sam Lloyd's "15" puzzle. The funny story and mathematical implications of this game. Some funny logical problems with the 15 game.
• Puzzle of the Week Archives - A collection of puzzles, with hints and full solutions. Compiled by George Moody.
• Puzzles of Leonid Mochalov - A variety of challenging geometrical and arithmetical puzzles, many with solutions.
• The Puzzling World of Barry R. Clarke - Brain teasers, articles and puzzles forum.
• Pythabacus - Description and instruction of using the ancient Pythagorean Abacus to do arithmetic.
• Scott Kim - Puzzles for web, computers, and print; ambigrams.
• Sequence Puzzles and Problems - With links to related sites. Compiled by Torsten Sillke.
• SMSU Problem Corner - Math challenges Southwest Missouri State University in three levels of difficulties.
• Storkey: Two Envelope Paradox - A tough but simply defined problem which demonstrates key issues in probability.
• Tile Tris - Tile a spheroid working room aperiodically or periodically. Includes free demo download.
• Torus and Klein Bottle Games - Collection of Java-based educational puzzles.
• Wu's Riddles - A collection of riddles, puzzles, and technical interview questions, with a discussion forum.

• Mathschallenge.net - A website dedicated to the puzzling world of mathematics and computer programming. [RSS]
• Nick's Mathematical Puzzles - A collection of puzzles, with hints, solutions, and links to related mathematical topics. [RSS]