As you may know, we rescheduled the 14th Gathering 4 Gardner conference (G4G14) due to COVID-19. Unfortunately, it now seems clear that even delaying the conference by a year was too optimistic. Accordingly, we have renegotiated with the Ritz-Carlton, and settled on a new date this fall. We apologize for moving the conference again, but it could not be helped.

The new, new dates are October 20 through 24, 2021. One nice consequence is that this includes Martin Gardner’s birthday, October 21. As before, by default, if you registered for G4G14, your registration will automatically transfer to the new dates as per the terms of registration. Please contact support@g4gfoundation.org for questions about registration.

14th Gathering 4 Gardner Conference (2021)

From Wednesday, October 20th through Sunday, October 24th, 2021 in Atlanta, Georgia, G4G participants will assemble, in Martin Gardner’s name, to celebrate recreational mathematics, magic, puzzles, skepticism, science, art, literature, and the intersections of these subjects. Participants will offer presentations, performances, original papers, and exhibits. Countless exchanges of ideas and examples of magic will inspire and delight. Unlike many other conferences, G4G is participatory in nature; all attendees are encouraged to contribute, whether that be a 5-minute presentation, an original paper, a unique exhibit, or a novelty item for the gift exchange. 

G4G14 SCHEDULE      G4G14 FAQs  

Conference Registration

Registration for G4G14 is OPEN! 
Invitation emails were sent to past attendees. If you have attended a past Gathering and did not receive an invitation, please check your Spam folder and email support@g4gfoundation.org if you did not receive the invite.

For information about nominating yourself or others for attendance CLICK HERE.

Eleusis Express Tribute Tournament

Come join the fun, the mystery, and the challenge of playing a variation of Robert Abbott’s card game Eleusis! (pronounced el-you-sis) Featured in the Martin Gardner Mathematical Games columns of the June 1959 and of the October 1977 Scientific American. We’ll play Eleusis Express, a quick-play adaptation approved by Robert, led by John Golden (the adapter). 


G4G14 What, When, Where

  • WHAT: The 14th Gathering 4 Gardner Conference
  • WHEN:  Wednesday, October 20th through Sunday, October 24th, 2021
  • WHERE: The Ritz-Carlton, Atlanta, Georgia, USA
  • Who usually attends? Our participants include professional and amateur mathematicians, magicians and performers, artists, educators, scientists, and anyone who is inspired by the same interdisciplinary curiosity that excited our namesake, Martin Gardner. Due to high demand at the previous event, the cap for G4G14 has been raised to 400 attendees.
  • How much does the conference cost? Registration is $400 with add-ons available for dinners, performances, and the traditional offsite social and sculpture-building event. The registration fee covers four days of presentations in the Ritz-Carlton’s grand ballroom but does not cover food or lodging.
  • What was the previous event like? View some of the papers and presentations from past events:
  • How can I attend? G4G14 is an invitation-only conference; however, you can nominate yourself or others for attendance. If you are interested, please fill out the nomination form and be sure to mention the nominee’s background, passion for Martin Gardner’s legacy, and/or desire to engage with the community. We will be reviewing nominations periodically and will let you know if your nomination is accepted.
  • When does registration open? Registration for G4G14 is now OPEN!
  • Other questions? For all other questions about G4G14, please contact support@g4gfoundation.org or visit the complete G4G14 Frequently Asked Questions webpage here.

Four Days of Presentations

G4G offers opportunities for participants to share their passions and discoveries. The core of the conference consists of 4 days of brief presentations (generally 5 to 6 minutes).  

PLEASE NOTE: There are no presentations on the afternoon of the offsite event. All G4G14 attendees may participate in the offsite event with a purchased ticket. 

Offsite Activities

Due to the success of the offsite event at the previous Gathering (G4G13), we have decided to again hold the event in Decatur, Georgia.

Sarah Garvin Rodgers invites the G4G community to her art gallery, Different Trains, in the artistic Old Depot District of Decatur. On Saturday the 23rd, we are pitching tents in the street, serving lunch, building mathematical sculptures organized by George Hart, and creating opportunities for participants to socialize and explore this vibrant community.

Description of Activities

A Mathematical Walk Around Downtown Decatur

Join Ron Lancaster for a walk in downtown Decatur to experience viewing the world through a mathematical lens while getting some exercise. This offsite event will be an opportunity to work with others to answer questions and solve puzzles related to daily life, design, art, architecture, science and recreational mathematics.

Ron is an Associate Professor (Teaching Stream) at the University of Toronto where he teaches mathematics courses for pre-service middle and high school teachers. He has over 20 years of experience teaching grades 7 through 12 mathematics. Ron’s professional activities include consultations and conference presentations in North America, Asia, England, the Middle East, Africa, India and Europe. Ron is an author for the NCTM (The Mathematical Lens) and member of the Advisory Board for the Museum of Mathematics in New York City. He is the recipient of the 2015 Margaret Sinclair Memorial Award Recognizing Innovation and Excellence in Mathematics Education awarded by the Fields Institute.

More offsite activities to be announced.

Evening Entertainment

Thursday and Friday evenings at the conference are times to further connect. A buffet dinner will be served followed by entertainment featuring eclectic performances. Past shows have included close-up and stage magic and variety-style acts from juggling to feats of strength and mental math. This is also a wonderful opportunity to meet the other attendees.

Gift Exchange

Traditionally, every Gathering conference includes a Gift Exchange in which attendees swap puzzles, magic tricks, artwork, papers, novelty items, books, etc. Participants in the exchange must submit an item for the physical Exchange Bag or a document for the Exchange Book. If you’re looking for inspiration, think of the exchange as something you would be excited to share with Martin Gardner himself. We recommend something original or unique, something made by hand, or something other attendees would enjoy or value. 

Everyone who participates in the Exchange will receive:

  • G4G14 Exchange Bag
  • G4G14 Exchange Book

Sales Room & Exhibit Room

At G4G14, attendees will have the option of setting up a table in the Sales Room and/or the Exhibit Room.

Sales Room: If you are a vendor and wish to sell items to other G4G attendees (examples: books, sculptures, puzzles, mathy toys, etc.) consider reserving a Sales Table. Only attendees registered for a Sales Table will be permitted to sell their inventory at the conference.

Exhibit Room: If you have something special to share with the G4G community that is either too large or complex to be reproduced for the gift exchange, consider reserving an Exhibit Table. Past exhibit examples include: surprising 3D-printed objects, unusual musical instruments, kinetic sculptures, historical collections, and special edition books, toys, and games.

For both the Sales and Exhibit Room, space is limited and tables are available on a first-come, first-served basis. Sales and Exhibit Room participants are required to staff their table during Happy Hour on EVENT EVENING TBA (from the end of the final talk of the day until the start of dinner).

Nominate Attendees

You are welcome to nominate new attendees (including yourself) for invitation to G4G14. Please let us know how your nominee will enrich the G4G community. Fill out the form once for each person being nominated.


The official G4G14 logo was designed by Scott Kim. Below is a link to download the logo files for use on gift exchange items and a separate link to view Scott’s background information about the design of the logo. 

If you would like to submit an unofficial logo for G4G14, please email support@g4gfoundation.com.