Mathematical recreations and puzzles
Cyclic quadrilateral theorem by Antonio Gutierrez from "Geometry Step by Step from the Land of the Incas".
Sangaku problem: The incenters of four triangles in a cyclic quadrilateral - Antonio Gutierrez
Connect Capture A game that mixes Dots and Boxes with Chess.
index
ossiemanners.co.uk
Ossie's Web Page
Dabble mit dabble
LittleGolem
Little Golem
well.com well user java dots
Dots
How to make a hexa-hexa-flexagon by Magnus Enarsson
Magnus Enarsson
froola rocks.
How to make a Hexaflexagon home
Hexaflexagons
MathWorld entry on Hexaflexagons wolfram
Hexaflexagon -- From MathWorld
tetraflexagons , including three nets
Tetraflexagon -- From MathWorld
Friedman Numbers, at Dr. Erich Friedman's home page stetson
Math Magic
Marian Trenkler: An algorithm for making magic cubes
Marian Trenkler: Magic p-dimensional cubes cub
Harvey Heinz: All about Magic Cubes members shaw
Magic Cubes-Introduction
MathWorld: Magic Cube wolfram
Magic Cube -- From MathWorld
17 (Seventeen) and Yellow Pigs
17 (Seventeen) and Yellow Pigs
'Monty Hall' over easy A short proof using a table of outcomes
The Monty Hall problem -- over easy
Monty Hall Simulator (Simulators for the keep and change strategy in Perl, with data files representing the results of playing the game one million times with each strategy)
Monty Hall Problem
Secret of Monty Hall (explanation from the bad-door side)
Secret of Monty Hall
Grand Illusions Explanation and various simulators
GRAND ILLUSIONS
Monty Hall Dilemma at cut-the-knot
Education, Mathematics, Fun, Monty Hall Dilemma
Monty Hall Paradox (let's make a deal) (lengthy bibliography)
THE MONTY HALL PROBLEM (at letsmakeadeal.com; quotes Monty's letter to Steve Selvin in full)
Monty Hall Problem
A Java applet for solving the fifteen puzzle www projects eco
Alexis Drogoul - N-Puzzle
Article explaining parity in the fifteen puzzle cut the knot pythagoras fifteen
Sam Loyd's fifteen
A popular free computer game version of the 15-Puzzle web
Matt's Puzzle - Sliding Puzzle Game - 15 Puzzle
Friends of Pi Club ''(German and English)''
Pi 3.14159 - Freunde der Zahl Pi - Friends of Pi
Determination of Pi at cut-the-knot
The Nature of Pi
The unofficial Pi Day website
piday.org
Pi Day in Maine with Dr. Wilson's Memory Elixir
Dr. Wilson's Memory Elixir Archives
Things Go Better with www.froola.com.
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It uses material from the Wikipedia articles :
Cyclic quadrilateral , Dots and Boxes , Flexagon , Friedman number , Magic cube , Michael Spivak , Monty Hall problem , N-puzzle , Pi , Pi Day , .
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the Froola link list about "Mathematical recreations and puzzles".