Our hot stuff online
Old but still good news
On the road, our summer shows...
See our show schedule for our next slate of events in the North and Midwest, then on to Colorado and California. And if you're in the area, come see us. Kate will be there, assisted by her talented daughter, Sue, and sometimes by Kate's stalwart husband, Dick Jones.
Recap of April 2018 Gathering4Gardner in Atlanta...
An amazing group of over 300 scholars, mathematicians, magicians, and puzzle lovers, designers, collectors and wizardsLall fans of Martin Gardnergather every two years in Atlanta in a feast of mental wizardry. This year, for the 13th Gathering, Erno Rubik (yes, he of Rubik's Cube fame) attended in person and gave some talks and interviews. Dozens of presentations, a brief 6 minutes each, dazzled the audience with marvels, magic, mysteries and mirth. Kate's talk was titled Lucky 13 and showed 13 lovely puzzle designs of 13 tiles each, by Michael Dowle of England, and was the world premiere of one of those designs as our newest puzzle: Cookie Jar. You can view the original PowerPoint slide show.
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.
New Guest Showcases
Our friends at ThinkFun have produced, among all their excellent educational products, a few that fit perfectly into our combinatorial themes, and we are happy to offer these through our website: Square by Square, Pathwords, Color Cube Sudoku, and Swish Jr. These are in addition to ThinkFun's classics that we have carried for many years now: Shape by Shape, Block by Block, IZZI and IZZI2. Some of these are out of print, so only available from us while our supply lasts. (Kadon's own products never go out of print!) All these product names are proprietary trademarks of ThinkFun, Inc.
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.
Cookie Jar World Premiere!
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.
Deluxe wood Poly-5 available again!
Our very popular Poly-5 set is back in a beautiful wooden version crafted by Elijah Allen. Lovingly stained and finished in rich hues, it has an elegant engraved wood tray. A limited edition had its world premiere in our Gamery pavilion at the Maryland Renaissance Festival in 2016. It's too beautiful to be limited. More....
Tricolor Stomachion Monograph the 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.
MiniMatch-I four colors dance merrily
This little set surprised us at every turn with the variety, intricacy and pretty patterns to which just 9 tiles can lend themselves and has become the newest member of our edgematching family. More....
MiniTouch-I four 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....
Ochominoes 24 unique octagon dominoes
A brand new way to tile with octagons and squares, form hundreds of delightful patterns. This set epitomizes "the joy of thinking", making breathtakingly beautiful designs. It was created as a unique new polyform set, "polyocts", by Dan Klarskov of Denmark. Each piece looks like a little cartoon character. What would you name them? Can you find the cat, the mouse, the teddy bear? The turtle, owl and penguin? More....
Special edition... Octiamond Stack
We're offering a special and very limited edition of the 66 octiamonds, styled as 6 separate "petals" that stack, each in a little tray. Only while they last. And only for the hardiest puzzle lovers and collectorsthis one's a doozy, even with millions of possibilities. More...
We're celebrating these games on the 25th anniversary of our first publishing them. They have been continuously in print, 1993-2018. In 1992 we had introduced just two new sets. We made up for that in 1993 with a deluge of 9 lavish creations. See more of their stories in our historical notes, Opulence in acrylic and wood.
The Rusticana Collection
These custom-made "mixed-media" ensembles interpret several Kadon games also offered in all-acrylic versions. They are crafted with passionate precision in lasercut wood, dark and blond, intertwined with luminously tinted transparent acrylics that give a stained-glass effect, in handcrafted reversible wood display cases. These are among our loveliest art puzzles, with thousands of solutions for each.
- Deluxe Rombix® 16 tiles formed of 4 sizes of rhombs as singles and concave pairs. The elegant mathematics of "rhombic circle tilings".
- Deluxe TrifoliaTM 24 graceful triangles, all different, nestle in a checkerboarded hexagon of wood and acrylic.
- Deluxe SextillionsTM 36 hexominoes with 12 special pieces contrasted, a pretty parity paradox.
- Deluxe Super Roundominoes® Ten curvaceous shapes of 1 through 4 "rounds" and "bridges" intricately interweave with 3 tones of wood and 3 Lucite hues.
- Deluxe Snowflake Super SquareTM 24 distinct plus 12 duplicate tiles interlock with alternating bands of wood and transparent hues. Exquisite!
Hard-won solutions for Ochominoes
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 two weeks of determined effort.
Marvelous wrap-arounds for MiniMatch-I
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. Our friend Alex Streif, a talented solver, has come up with an opulent series of new solutions.
The amazing designs for Trio-in-a-Tray
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 Squares
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-8
More fine results by Alex Streif, here's a whole new group of attractive solutions embedding pentominoes into Dezign-8 solutions. Take a look in our gallery of variations. More....
Our hot stuff online:
Great app! Blockout for Windows Phone
Paul Thomann in Switzerland has written a great new program to play classic Blockout on the new Windows Phone, versions 7.5 and up. Get your copy from the Windows store,
Blockout for Windows Phone, under license from Kadon.
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
Chichen Itza Pyramid
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.
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.
This update page is overhauled monthly and updated momentarily.
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 ....
Chasing Squares ....
Trio in a Tray ....
Tricolor Stomachion Monograph ....
Cookie Jar ....
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.