G4G13 Gift Exchange Book

G4G13 Schedule

Adam John Frederick Atkinson — Art and Mathematics: The ELHP
Vladimir Bulatov — Cross Sections of Three Dimensional Hyperbolic Tilings
Debora A Coombs — Geometry in five-dimensions: Building quasicrystals from Penrose tiling
Michael Dowle, Kate Jones — Cookie Jar
David Michael Greene — Unique Three-Color Colorings of Aperiodic Tilings
David Hall — Recipe for a ‘Bola Honeycombs
James Marston Henle — Ring-a-ding Numeration
Kate Jones — Lucky 13
Margaret Kepner — 4 x 13
Matjuska Teja Krasek — Golden Magic
Robert J. Lang — RiF-RiF Bird
Sabetta Matsumoto — Klein Bagel Baby Toy
Jane Nash — The Shape’s Eternal Magic
Miguel Palomo — Math Art
Miguel Palomo — Maths Everywhere
David Richeson — I Heart Cardioids: Make a Cardioid Flip Book
Daina Taimina — Crocheting Hyperbolic Regular Octagon and Pair of Pants

Spandan Bandyopadhyay — Don’t Cheat
Tom Bessoir & Joshua Pines — Starting Racks That Can Bingo
James Grime — Nontransitive Dice for Three Players
Frederick Valentin Henle — Deck Building Games with Playing Cards
Jim Propp — A Flexier Hexaflexagon
Tom Roby — An Interesting Property of Bulgarian Solitaire
Robert W. Vallin — Maverick Solitaire and Three-Card Poker

Steve Butler — A Card Trick Inspired by Perfect Shuffling
Jeremiah Farrell & Stephen Bloom — The Tea Party
Nathaniel Wing Segal— Deconstructing Magic Squares
Barney Sperlin — How Safe Is It?
Ricardo Teixeira — Hamming Code in a Magic Trick

Thomas Banchoff — Foxtrot Half-Empty Half-Full Problem Including 13
Neil Bickford — Why Do the Unit Quaternions Double-Cover the Space of Rotations?
Joseph Cassavaugh — The Bandaged Cube
Douglas Engel — Linked Circles, Space Numbers and Space logic
Brian Hopkins — Difference Dice
Gabriel Doran Kanarek — Repetitive Patterns in the Juggler Sequence
Gergő Kiss — A Way to Derive the Spidron Formulas
Ron Lancaster — A Mathematical Walk in Decatur
Dana Mackenzie — 2184 (Oh, the Absurdity)
Ryan William Morrill — Playing nice with a crooked coin
Hilarie Orman — Mental Factoring Cheat Sheet
Eleftherios Pavlides — Chiral Icosahedral Hinge Elastegrity’s Geometry of Motion
Tomas Rokicki — Life Algorithms
James Joseph Solberg — (Phi)ve is a Magic Number

Dana S. Richards — Martin Gardner: Annotator
Thomas Charles Smith — The Animal Hunter through My Life

Donald Atkinson Bell — Development of the Loyd Polyominoes Puzzle
Colin Beveridge — One Puzzle
Stephen Bloom, Lacey Echols, Jeremiah Farrell & Shannon Lieb — Martin Gardner Puzzles-Games
Frans de Vreugd — New Old School (NOS) Burrs
Erik D. Demaine & Martin L. Demaine — Sliding Coins (PDF paper)
Michael D. Dowle — Lucky 13
Yossi Elran — Some Paper Puzzles
Jeremiah & Karen Farrell — Euler Entertainments
Jeremiah Farrell & Chris Morgan — A Gathering for Gardner Puzzle-Game
Rik van Grol — Balance Puzzles – You Either Love Them or Curse Them
Emrehan Halici — Five Problems
Carl N. Hoff — From Untouchable 11 to Hazmat Cargo
Lyman Porter Hurd — The Dezign-8 Puzzle
P. Justin Kalef — Four Logical Deduction Problems from Famous Motion Pictures
Tanya Khovanova — Crypto Word Search
Anany Levitin — Two Tiling Problems
Andy Liu — Symmetrix Puzzles
David Nacin — G4G13 Latin Square Puzzles
Michael Edward Naylor — Knight Mazes
Palomo, Miguel — Sudoku Ripeto and Custom Sudoku Sampler
Henri Picciotto — The Ambidextrous Puzzle
Emmanuelle Malte Salvatore, Todd Wilk Estroff, & Jeremiah Farrell — Alice in Wonderland
Karl Schaffer — Edgy Puzzles
Doris Schattschneider — Marjorie Rice’s “Versatile”
Tom van der Zanden — Packing Polyominoes into a 3-By-N Box is as Hard as It Gets
Peter Winkler — Puzzles that Solve Themselves

Antonick, Gary — Sketching a Projectile On a Ramp
George I. Bell — The Dynamics of Spinning Polyominoes
Kenneth Brecher — Introducing the PiTop
Gary Mar — What the Liar Taught Achilles