New topics: September 2019

Recent releases
Silver anniversaries
New solutions
Our hot stuff online
Other news
Old but still good news

Click on the links for full descriptions. (Links open in new window.)


It's our 40th Anniversary!
Kadon Enterprises, Inc., has been creating and making original, beautiful gamepuzzles for 40 years! From 1979 to 2019, and it seems like no time at all. We'll be celebrating in a variety of ways all this year. See our commemorative brochure and, just for a fun overview, a collage of everything we've made and continue to make. And here's a brief write-up, with a few photos, of the big party on May 4. With the first 40 orders we receive, beginning on May 4, 2019, we'll also include a special gift.

Maryland Renaissance Festival—our 36th season!
The most fun you can have in the 16th century! Hundreds of costumed characters, fabulous performers, great food, lots of drinks, and one very special game shop, Ye Olde Gamery, where you can play unique original and historical games and puzzles, and even purchase them. Running every weekend until October 20, 2019. Even the King visits us once in a while to play the Royal Game of the Goose with our goose mistress, Katrina, and the lucky travelers who happen by. If you can make it, visit us especially on the last weekend, when we have our annual Celebration of Mind with prizes and surprises.

Recent special events...
We attended the Bridges 2019 Conference in Linz, Austria, from July 17-21, 2019. Our exhibit of "math as art" entertained even the most erudite professors, and Kate gave a talk on "The Surprising Symmetry Pairs of the 24 Di-Oct Ochominoes Tiles." This event was also the world premiere of our intricate new Shardinaires-9 puzzle by George Sicherman. Check our show calendar to see where we'll be next.

Video of one Super Quintillions solution now online!
Watch a piece-by-piece assembly of how the 18 superquints build into a tower that will then slide into its box, starring Krystal Goodrich's talented hands. Filming by Elijah Allen.

Our Tricolor Stomachion is in a YouTube video!
Joe Marasco has created a fascinating video documentary about our Archimedes' Square puzzle, also known as the Stomachion. You can watch the amazing story of the origins and development of this 2200-year-old treasure and its many solutions as Joe explains its inner secrets. See the Tricolor Stomachion.

The long-awaited Hexnut rulebook has arrived!
"Under construction", it said for years, and our very patient fans bought this complex classic Hexnut set, knowing someday the book would also be ready. If you are one of these good souls, let us know your current address and we'll mail you the printed book. You can also access the digital file of it right here.

We won The Archimedes Award for 2018
The 2nd Annual Megistian Aenigma Agon puzzle competition was held on the gorgeous Greek island of Kastellorizo, September 1-3, 2018, organized by Pantazis Houlis. The Megistian Aenigma Agon is a Quadruple International Puzzle Competition (Interaction, Inscription, Illusion and Invention). The word Megistian comes from one of the island's names (Megisti), Aenigma means puzzle, and Agon stands for competition. It is a celebration of toys, puzzles, and word-games, presenting to the world Greece's leading role in puzzles. Winning the First Place "Archimedes" award was our splendid, seductive, though often difficult Ochominoes puzzle.   More....

2018 Doris Championships
The 8th Annual Festival of Mind and Doris Championships, organized by Zdravko Zivkovic, took place in many high schools in several European countries, building creativity and featuring our Doris puzzle. See the report of the winning designs, semi-finalists, and Grand Finale ceremonies. "Desert Island" (right) by Matej Fijacko won first place.

Simply beautiful... Flashes of Life
We offer, as a small departure from physical puzzles, a book of breathtaking photography by Robert L. Steinberger, Ph.D., each image paired with a haiku by Kate Jones. Flashes of Life, The Flower Collection comprises over 100 pages of digital photography, poetic interpretations, and stories. It's the first in a series of volumes on different subjects by this great visionary whose legacy will live on in the "flashes of life" he captured during a lifetime of passionate photography. You can preview the whole book at the publisher's website, and you can also order it from us as a lifetime treasure, in the best archival quality and now also in a more moderately priced hardcover edition. More...

World's best music... The Caranza Collection
Caranza is the stage name of Patric Hale, a phenomenal Meistersinger who has achieved both tenor and baritone mastery of 12 genres of music in 7 languages, with moving emotional sensitivity and blow-you-away power of delivery. He has a repertoire of hundreds of recorded songs, available on 22 CDs, ranging from Elvis, Sinatra, Tom Jones and Billy Joel to Broadway tunes, German songs, Italian and German opera, and more. Here are links to four audios to give you a start. Then visit our showcase of the entire collection and order his CDs to enrich every day of your life.


Recent releases:

Twenty-TansTMThe latest brilliant missing link
Created by Hans Weidig IV, this latest evolution of the tangrams concept is lightyears ahead of the traditional set. Its 20 tiles cover 16 squares and form hundreds of figures with mathematical purity. Four vivid colors add visual splendor. And there's something interesting for all ages, from introductory to the most sophisticated. See its official world premiere during the Maryland Renaissance Festival, starting August 24, 2019.   More....

Hex-PaveTMAn enchanting family of hexagon permutations
Created by Carl Hoff, these 15 tiles represent all the combinations of hexagons with sides of 1, 2, and 3 units in length, yet all their angles are equal. Although each tile is differently proportioned, they have amazing ways of forming groupings and patterns. Like any family, the uniqueness of each individual makes for surprising and delightful adventures, from lacy lattices to tightly bonded beehives.   More....

Shardinaires-9TMOur newest dissection puzzle
Created by George Sicherman and expanded by Kate Jones, the 9 strangely shaped tiles can form all 12 pentominoes and all 5 tetrominoes, besides a wealth of convex, concave, symmetrical, and whimsical silhouette figures. Two games explore unusual strategies of border formation.   More....

StarHex-ITMOur newest polyform puzzle
Created by Theo Geerinck of the Netherlands, this little brother to our beautiful StarHex-II has 14 tiles, with every combination of from 0 to 6 triangles attached on the edges of a hexagon. Developed by Kate Jones and Elijah Allen, the five colors code the pieces by type. For its world premiere, we submitted StarHex-I to the 2019 Annual Megistian Aenigma Agon puzzle competition on the Greek island of Kastellorizo, to be held in August 2019. Its collection of complex shapes and themes will keep you fascinated for years, and you can even extend its challenges by combining it with the StarHex-II set.   More....

Ternion FactorTMOur newest strategy game!
Art Blumberg's fifth beautiful and innovative strategy board game had its world premiere at the 2018 Maryland Renaissance Festival. Ternion means threes, and each turn is a triple-action adventure. Unlike any game you've ever seen, it lets you add, remove, move pieces as you choose your best combinations. If you're in Maryland, come see our booth at the Baltimore Christmas Village and have Art show and teach you this super game in person.   More....

The Four Horses of the Epic EllipseTMa wild ride!
The ellipses referred to are the four identical parts of our Surprising Pyramid. Our resident mathematician, Elijah Allen, was toying with them one day to see what two-dimensional figures they could make, besides building a four-level pyramid. In short order Elijah and Kate had accumulated over 50 designs, and new ideas kept popping. Kate remarked that the shape of that piece was called the horse. Elijah then had the brainstorm to turn the bulky balls into flat hexagons, making them a pentahex... one of the tiles in our Hexnut set. Good idea, so here are the four horses as our newest Pocket Puzzle. Great stocking stuffer and to take along anytime for doodling and creative fun. So few pieces, such a long name, and a really tiny price.   More....

Cookie JarTMdelicious conundrums
We present a combinatorial set by Michael Dowle... a tasty dish of 13 unique tiles, each with a different combination of 1 through 6 rounded triangles attached to the sides of a concavely curved hexagon. Their symmetry patterns are a visual delight and a solving challenge. Over 100 puzzle challenges plus two games. A neat platter of ever-intriguing food for thought, perfect for your coffee table.   More....


Tricolor Stomachion Monographthe latest word!
A six-month research project with Archimedes' Square (also known as "Stomachion") by Joe Marasco, Kate Jones, and Alex Streif has produced an amazing historical document, new findings after 2200 years of silence about the world's oldest documented puzzle.   More....


MiniTouch-ITMfour shapes link up gracefully
This version, designed by Elijah Allen, is a tactile equivalent of MiniMatch-I, where four kinds of contour carved out of the sides of squares form circles, diamonds, hexagons and curvy octagons in the negative spaces. Great for touch-solving by vision-impaired players, too.  More....

Silver Anniversaries!

We're celebrating these games on the 25th anniversary of our first publishing them. They have been continuously in print, 1994-2019. In 1993 we had introduced a deluge of 9 lavish creations. We followed the next year with 12 more, mostly large pieces again. See their stories in our historical notes, Angles, Gold and Gala.

The golden ratio as art
We got intrigued and enchanted by the mathematics of the golden ratio, phi, and the lure of Penrose tiles, and finally pulled together several large kits and art pieces based on phi.

  • CollidescapeTM — the two golden triangles in pods of 8 tiles, each in 5 colors. Starter set, 25 pods; expansion set, 55 pods. Enough to explore grand designs.
  • Penrose Diamonds — two shapes of rhombs, 36 and 72 degrees, build five-fold symmetries non-periodically. Pods of 8 tiles, in 5 colors. Starter set, 20 pods; development set, 50 pods. Enough to study this amazing phenomenon expansively. Math departments, you need these.
  • Penrose Kites & Darts — two shapes of tiles made of pairs of golden triangles, with non-periodic propensity. Pods of 8 tiles, in 5 colors. Starter set, 20 pods; award-winning master set, 40 pods plus game mat for up to 5 players.
  • Deka-StarTM — a decagon of 40 Penrose diamonds, the two shapes in 4 colors. Form a galaxy of exquisite designs. This year in a silver frame.
  • Rhom-AnticsTM — a glorious embodiment of thick and thin Penrose diamonds with edge colors, 45 of each size, in 23" frame. Your choice of 3-color mix.
Big beauties
Classic strategy
  • AmazonsTM — a much-analyzed strategy game for 2 players. Does it favor first or second player?

New solutions:

Hard-won solutions for OchominoesTM
Our newest puzzle is irresistible even though it's a really tough nut. Adam Criswell, our Renaissance Festival squire, found this amazing matched solution after three weeks of determined effort. More...


Marvelous wrap-arounds for MiniMatch-ITM
See colormatched solutions with wrap-around edges and one or even two enclosed colors. The solution at right wraps both left to right and top to bottom and has full symmetry of the colors as well.     More...


Dominoes and symmetries for Hexdominoes®
One of our bestsellers, Hexdominoes lets us make ever surprising new discoveries. What a delight that a basket of parallel "egg" patches was possible. This one was found by a visitor to Ye Olde Gamery, at the Maryland Renaissance Festival.     More...


The amazing designs for Trio-in-a-TrayTM
Who would have thought that our venerable mini-puzzles, the Tiny Tans, would emerge as a Trio with such amazing variety and beauty. It surprises us with every new pattern we find. That's playable art!     More...


The dazzling variety of Chasing SquaresTM
With the simplicity of just two shapes in two colors comes a deluge of eye-pleasing symmetries, easy to construct yet always new and surprising. Here is a whole gallery of designs found by some of the visitors to our booth, and by our crew who can't resist toying with this one for new apparitions. More....


Pentominoes and symmetries for Dezign-8TM
Here's a whole group of attractive solutions embedding pentominoes into Dezign-8 patterns, created by Alex Streif. Take a look in our gallery of variations.     More....


Our hot stuff online:

We have an InstaGram page!
Thanks to our dear friend, Violet LeVoit, there is a colorful and growing display of Kadon gamepuzzles and scenes on Instagram.

Our Tricolor Stomachion now on YouTube!
Joe Marasco has created a fascinating video documentary about our Archimedes' Square puzzle, also known as the Stomachion. You can watch the amazing story of the origins and development of this 2200-year-old treasure and its many solutions as Joe explains its inner secrets. See the Tricolor Stomachion.

Gamepuzzles on Facebook!
Kadon has its own Facebook page for wider contact with our friends and fans. It's warm and fuzzy to see how many "likes" are coming our way. Have you "liked" us yet? Please do. And we're able to share things there that don't have a place in our formal website. Check in now and then to see what other folks say. Our thanks to Elijah Allen for launching the page and helping to administer it.

So come and talk to us there! The permanent link is on the homepage (look for the blue button). Any questions about our puzzles, praise and kudos are happily received. Join the conversation and look for special features from time to time. There will be no selling, only telling, in our Facebook lounge. For ordering please come to this main gamepuzzles site, where you'll find everything we make and an easy-to-use, secure shopping cart.

We have an applet to play Proteus!
A Proteus fan, Paul Nord, put his genius to work creating an app for your mobile devices so you can play our Proteus meta-game against a fairly smart computer. Get it now at the Apple store for under a dollar:   Michael Waitsman's Proteus — then enjoy this superb strategy game even when you don't have a worthy human opponent available. Paul's program looks beautiful and works great.

Pentacube Videos on YouTube!
Our friend and fellow polyomino lover, Donald Kern, has created four delightful, and impressive, videos showing the "complete" set (35 one-sided pieces) of pentacubes forming amazing and difficult solutions by Don. You'll want to see these more than once:

Regular 5x5x7 Block
Two-Sided Staircase
Jagged-Edge Block
Chichen Itza Pyramid


Other news:

Kate has written a unique time travel tale that you can read online here: "When are you?", providing a fictional background to some of our historical games. All the people are real; only the circumstances of their appearance are imaginary and coincidental!

A highly condensed printable catalog has been updated and is available online as three .pdf files. It has 24 standard pages plus an order form, in full color, although it works just fine printed in gray. Feel free to download as much of it as you want, and you're welcome to print it out for Web-deprived friends, too. This catalog can also be viewed online with flippable pages:

  Our flip catalog!
Now you can view our condensed 24-page print catalog with flippable pages or even as a slide show. The Flash program lets you zoom in, turn pages, and even click on any picture for a shortcut to its website display. Get an instant overview. Just click on the little cover page thumbnail at right. Works best with Chrome, Safari, Edge, or Firefox. To print out selected pages or your own full copy, go to our print catalog file (.pdf). For special categories and cross-references, see the Search Us index.

Archives expanded
If you've missed previous announcements or mailings, you can still track back to see what's been happening with us by browsing through our archives, especially the annual newsletters that sum up our year's doings. Here's the Archives index.


Old but still good news:

Check out unsolved tough challenges on the Contests page. Open to the world, with prizes to be won. Happy puzzling!

We own four very cool domain aliases. Each is just a title page ("splash page") and links to the respective major sections of the official gamepuzzles website. Take a look; they're jazzy.

Our Hexdominoes set is also a registered trademark and has its own independent website and domain name, with additional materials not found in our main website, such as the entire rule book and actual-size grids to print out for use with special figures. We plan to offer new challenges there eventually and maybe even some play-online features. A little logo for it is on the bottom of the homepage. And check out the awesome new designs we've found for this amazing set.

If you would like to receive copies of our very rarely issued bulletins or newsletters, please send us your email address and we'll add you to our confidential mailing list. We never give out our list; your privacy is safe with us. You can also subscribe and advise us of any address changes through the Contact Us page.

Here's a recap of all the gamepuzzles added to our website recently and in the past year, in case you missed their first announcement.   Octiamond Stack .... RunnuRound .... MiniTouch-I .... Ochominoes .... Tricolor Stomachion Monograph .... The Four Horses of the Epic Ellipse .... Cookie Jar .... Ternion Factor .... StarHex-I .... Shardinaires-9 .... Hex-Pave ....

Blooper Bounty — This is a standing offer:  we'll send a small prize to the first person who advises us of a mistake in this website, whether a typo, broken link or other goof. Each blooper gets a separate prize. Email us and provide your ground address, so we can mail you your prize. And thanks!

Our hot-link icons are listed, along with some surprises and hidden prizes, for those of you who care to read directions for getting around this place. For the others, there's always logic, intuition and serendipity.

This update page is overhauled monthly and updated momentarily.

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