Download the Entire G4G14 Exchange Book
Coming Soon!
Schedule
Art
- Neil Bickford — Some Algorithms for Musical Harmonization
- Robert Bosch — Domino Steganography: Dracula + (-Dracula) = Frankenstein’s Monster
- Marcela Chiorescu — Sakura Pythagorean Tree
- Matjuska Teja Krasek — A G4G14 Heartwork
- Matjuska Teja Krasek (1); Stephen Russell (2) — Ampedhead – Microdose: Peach, Peach, Peach
- Douglas McKenna — The Meta-Hilbert Curve → 14 Hilbert Curves
- Bjoern Muetzel; Matthew Bajor — Snub Cube Kaleidoscope
- Maria Samuelson; Moses Samuelson-Lynn— Polygoriginal
- T. Arthur Terlep — Waving Goodbye
- Phil Webster — Modern Interpretations of Traditional Islamic Geometric Patterns
Games
- Ryan Hayward — Hex: Two Books and One Puzzle
- Ryan Morrill — How to Get Even
- Jay Schindler — Catenate: An Innovative Card Resource Game
Magic
- Jeremiah Farrell — Some New Magic with Most-Perfect Magic Squares
- Jeremiah Farrell (1); Lacey Echols (2) — Martin Magic for G4G14
- Bill Ritchie; Melinda Contreras; Sophie Miller — A Magic Trick from 1994
- Ricardo Teixeira — Lie Detection Trick with Ternary Hamming Code
Recreational Mathematics
- Adam Atkinson — The Law of the Third
Joe Buhler — Wild Dice and Explicit Bounds
Tracy Drinkwater — What is Ethnomathematics, and How Can it Help Solve a Math Problem?
Yossi Elran — The Art of Destroying Flexagons
Rachel Hardeman Morrill — Stamping a Checker Board
Douglas Hewitt — Can the Number of Pieces in a Rectangular Jigsaw Puzzle be a Multiple of the Number of Edge Pieces
Paul Hildebrandt (1); Amina Allen (1,2); Mike Stranahan (1) — A Slice of Space
Akio Hizume (1,2) — Generalization of Cone-pass and Continued Fraction: Cone-puter
Peter Kagey — A Collection of Open(ish) Problems
Michael Keith — 300+ Digits of Pi From an (Almost) Ordinary Deck Of Cards
Alba Málaga Sabogal (1); Samuel Lelièvre (2); Pierre Arnoux (3) — Paper Tori
Jeanine Meyer — An Origami-inspired Adventure in Number Theory and Programming
John Edward Miller — More Fun with Langford’s Problem
Douglas O’Roark — Towers and Dragons: An Unexpected Connection
Eleftherios Pavlides (1); Thomas Banchoff (2); Alba Malaga (3); Chelsy Luis (1); Kenneth Mendez (1); Ryan Kim (2); Daanish Qureshi (2) — Tetradecahedron as Palimpsest of the Monododecahedral 1-Parameter Family of the Polymorphic Elastegrity
Dana Randall; Shunhao Oh — Gathering for Gardeners: A Randomized Approach to Pattern Formation
David Richeson — Circle Square Illusion Templates
Jorge Nuno Silva — Magic and Problems from Half a Millennium Ago
Derek Smith — Traveling Through the Sierpinski Carpet and Menger Sponge
Robert Vallin — An Unexpected Appearance (or Look Ma, No Rectangles)
Legacy
- Red Deupree — Tetraflexagon Catalog / Penrose Pattern Coloring Book
- Dana Richards — Are You a Mathematician?
- Rodi Steinig — Dear Mister Gardner: Apocryphal Letters from Children to Martin Gardner
Puzzles
Stephen Bloom (1); Jeremiah Farrell (2) — A Schlegal Puzzle for G4G14
Barry Cipra — Some Toroidal (and Non-toroidal) Rearrangement Puzzles
Erik Demaine; Martin Demaine — Puzzle Fonts About Puzzles
Douglas Engel — Engel Doug Unity-Ring & Puzzle Card & Superposition Paper
Todd Estroff (1); Jeremiah Farrell (2) — A 14 Puzzle for G4G14
Jeremiah Farrell (1); Karen Farrell (2) — King of Hearts
Rik van Grol — Puzzle Books from All Over the World
Jim Guinn — Sherclock Bird Watching
Rachel Hardeman — Stamping a Checker Board
George Hart — Warped-Grid Jig-saw Puzzles
Haym Hirsh — 14 Rabbiducks
Carl Hoff — Hex-Pave
Kate Jones — StarHex-14, Theo Geerinck’s 14 Polystars
P. Justin Kalef — Three Puzzles on a Familiar Theme
Daniel Kline — Paper on Jumping Julia Mazes
Steven Landsburg — Are You Smarter Than Google?
Karl Schaffer — Topological Dance Puzzles
Jaap Scherphuis — Walk a Crooked Path
Soni Shader Huffman (1); Timothy Huffman (2) — A Christmas Card by Leslie E Shader
Barney Sperlin — The Accountant
Anthony Steed — Squirmfest
T. Arthur Terlep — The Martian Mayor Problem and 4 Pictures
Ryuhei Uehara — New Patterns of Rep-tiles
Peter Winkler — Ms Goncalves and the Breakout Rooms
Science
- George Bell — Flippe Tops (physical item plus design document)
- Kenneth Brecher — The Sirius Enigmas Mathematical Tops
- Robert Crease — Conspiracy Theories
- Akio Hizume (1,2) — Fibonacci Turbine and Cone-puter for Cone-tinued Fraction by Cone-pass
- Jim Weinrich — Does Conway’s “Game of Life” Predict that the Speed of Light is Constant in the Real World
***Important Note Regarding Gift Exchange Copyright***
In the spirit of Martin Gardner, who believed in inclusiveness and the sharing of knowledge and curiosity, and as a non-profit that benefits from the generosity of our community, G4G is pleased to give back to the world by making the G4Gn Gift Exchange Books available for download online.
However, these papers are a compilation of original material and the contributors retain their copyrights. No part of the Gift Exchange Books may be reproduced or distributed in any form, without prior written permission from the original author. If you would like to request permission to reproduce or alter any G4G paper, please contact support@g4gfoundation.org and we can put you in contact with the author.