CellFighter - http://www.cellfighter.com/conways-life-download.html
Shareware game based around an extension of the game of life. |
IBM Research: Ponder This - http://domino.research.ibm.com/Comm/wwwr_ponder.nsf/pages/index.html
Monthly logic and math puzzles set by IBM researchers with solutions. |
Jim Loy's Puzzle Page - http://www.jimloy.com/puzz/puzz.htm
Classic and original puzzles. |
Kakuro-san - http://www.kakurosan.com
Providing graded Kakuro puzzles every day, plus old puzzles. |
Leisure Ideas: Puzzles - http://www.leisureideas.com/logic%20puzzles.htm
Some mathematical puzzles with answers and/or a hint. |
Mathematical Jigsaw Puzzles - http://home.hetnet.nl/~paslen/jigsawpuzzles.html
Information on polyominos and square puzzles. |
Monty Hall Game - http://montyhallgame.shawnolson.net/
JavaScript example of the Monty Hall Game. This game demonstrates the real (empirical) affect of statistics. [Does not display correctly in all browsers.] |
Perplexus - http://perplexus.info/
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. |
Quick Logic Puzzles - http://www.robertwilliams.org/qlp/index.html
Use the clues provided to deduce the correct sequence of numbers in the hidden code. |
TechInterview - http://www.techinterview.org/
Answers to technical interview questions, programming problems, and brain teasers. |
The Monty Hall Problem - http://www.remote.org/frederik/projects/ziege/
A probability theory puzzle with solutions. [English and German.] |
The Puzzles of Oscar - http://uk.geocities.com/oscarlagioia/riddles.html
Contains puzzles and games with solutions. |
The Truth Tree's Math and Logic Board - http://www.truthtree.com/mathdoor.html
Collection of math and logic puzzles ranging in levels of difficulty. |
Two Envelope Paradox - Solution - http://www.anc.ed.ac.uk/~amos/doubleswapsoln.html
Claims that the two envelope paradox comes from the incorrect use of probabilities. |
WU Forums - http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board=riddles_hard
Discussion board hosted at Berkeley with talk about a variety of solved and unsolved brain teasers. |