Contents  > Games  > Puzzles  > Brain Teasers  > Mathematical

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• Science: Math: Recreations: Games and Puzzles  (75)

CellFighter Shareware game based around an extension of the game of life. http://www.cellfighter.com/conways-life-download.html

IBM Research: Ponder This Monthly logic and math puzzles set by IBM researchers with solutions. http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/pages/index.html

Jim Loy's Puzzle Page Classic and original puzzles. http://www.jimloy.com/puzz/puzz.htm

Kakuro-san Providing graded Kakuro puzzles every day, plus old puzzles. http://www.kakurosan.com

Leisure Ideas: Puzzles Some mathematical puzzles with answers and/or a hint. http://www.leisureideas.com/logic%20puzzles.htm

Mathematical Jigsaw Puzzles Information on polyominos and square puzzles. http://home.hetnet.nl/~paslen/jigsawpuzzles.html

Monty Hall Game JavaScript example of the Monty Hall Game. This game demonstrates the real (empirical) affect of statistics. [Does not display correctly in all browsers.] http://montyhallgame.shawnolson.net/

The Monty Hall Problem A probability theory puzzle with solutions. [English and German.] http://www.remote.org/frederik/projects/ziege/

Perplexus A forum and collection of brain teasers, logic problems, math problems, paradoxes, science games, probability, riddles, and geometric shapes. The puzzles are searchable and categorized, most have solutions. http://perplexus.info/

The Puzzles of Oscar Contains puzzles and games with solutions. http://uk.geocities.com/oscarlagioia/riddles.html

Quick Logic Puzzles Use the clues provided to deduce the correct sequence of numbers in the hidden code. http://www.robertwilliams.org/qlp/index.html

TechInterview Answers to technical interview questions, programming problems, and brain teasers. http://www.techinterview.org/

The Truth Tree's Math and Logic Board Collection of math and logic puzzles ranging in levels of difficulty. http://www.truthtree.com/mathdoor.html

Two Envelope Paradox - Solution Claims that the two envelope paradox comes from the incorrect use of probabilities. http://www.anc.ed.ac.uk/~amos/doubleswapsoln.html

WU Forums Discussion board hosted at Berkeley with talk about a variety of solved and unsolved brain teasers. http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board=riddles_hard