Use links at page bottom to return to your last stop Hexdominoes: some surprising variations

The set
Matching patches
Polyhex patches
Symmetry patterns
Symmetries from Syracuse
More daisies and symmetries
Maximum groupings
Hard to categorize

 

The set

We knew Hexdominoes would be a winner, with hundreds of patterns, color themes, easy and difficult challenges. And now we keep discovering more and more beautiful designs of symmetry, color fields that spin before your eyes—the "playable art" aspect is transcendental.

These are the tiles that do all this and more — a hexagonal set of dominoes with every combination of 6 colors, plus one of each color as a single hex:

The Hexdominoes set

We show here a growing collection of results and solutions contributed by happy players. To our great delight, some are as young as 8 years old.


Matching patches

All same size and same shape color regions divide each color into two groups of 4 hexes. The first person ever to find such a solution was Emily Clark, on August 29, 2009, in Ye Olde Gamery at the Maryland Renaissance Festival in Crownsville, MD. Here is Emily with her history-making solution, "12 Eggs":

Emily Clark and her '12 eggs' solution for Hexdominoes

Soon other solvers got the idea and expanded the search to other patches of 4 hexes in size. See how neat and regular each packing looks.

Parallelogram of 2x2 color patches, by Kate Jones   12 'eggs' around center hole, by Dan Austin

12 'P' tetrahexes as color patches, by Dan Austin   12 'J' tetrahexes as color patches, by Dan Austin

12 'I' tetrahexes as color patches, by Kate Jones   12 eggs in rotational quads

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Polyhex patches

Here each patch is different in size or shape and models polyhexes from 1 to 5 in area. Compare these to the pieces of the Hexnut Jr. set.

All the polyhexes of size 1, 2, 3, and 3 tetrahexes and 4 pentahexes, by Dan Austin   All 7 tetrahexes are modeled, plus other sizes, by Dan Austin

Color quads form a spiral, by Dan Austin

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Symmetry patterns

Look carefully at each design to see how the colors have a rotational symmetry, or how some colors are opposite others.


At Hexdominoes' world premiere at the 2009 Maryland Renaissance Festival, Marty Roger was the very first solver to create a rotational design, and he's only 8 years old. Here he holds his amazing solution.

Marty Roger with his awesome rotational symmetry solution

 


Nancy Koles visited Ye Olde Gamery at the Maryland Renaissance Festival on September 12, 2010, and created this amazing wheel of triangles:

Wheel of triangles by Nancy Koles

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Daniel AustinDaniel Austin created this series of symmetry designs, each more elegant than the last, while working as a member of Ye Olde Gamery's crew during the 2009 and 2010 seasons. Thus he has many opportunities to surprise the rest of us with exquisite new designs. It's gratifying to see our products' full potential emerge in the hands of a skillful solver. Dan has also become adept at many of our strategy games and can teach them to visitors who are looking for competitive thrills.

36 single hexes in rotationally equivalent groups--green-orange-purple versus the 3 primaries.   Daisies--6 patches of 6 plus rotationally placed singles.

6 bowling balls in inner triangle, symmetrical opposites   Color pairs line up neatly like a kaleidoscope

Patches of 6 and 7 wheel around symmetrical hub.   More daisies, with rotating color pairs in center.

Daniel's ever more sophisticated rotational symmetries and color groupings:

Parallel bars, with rotating color pairs in center.   3 colors joined, rotational symmetry.

Three colors joined, all rotationally symmetrical.

Five daisies, each with different color in center.   Three daisies, all rotationally symmetrical.

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Sue Edwards, Lisa Miller - puzzle solvers extraordinairesSymmetries from Syracuse

Two wonderful puzzle solvers Kate met at an art show in Syracuse, NY, have contributed their own elegant symmetries. Sue Edwards and Lisa Miller sent us these. Sue teaches violin and music theory to children and grownups; Lisa is a scientist and computer guru. Check out the subtle perfections of their Hexdominoes designs:

Lisa's 3 daisies framed by solid-color borders and set on rows of 3 singles.   Lisa's 3 Vs around a spinning center of trihexes.

Sue's 5 flowers   Sue's color wheel with awesome symmetry of all 6 colors

Sue keeps her Hexdominoes set around her music studio for her students to try out, too. Here's a great arrangement of lots of daisies by Joshua:

Sue's student Joshua with lots of daisies

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More daisies and symmetries

In this solution (left) by Kate, all 5 daisies have the same-color center, and lots of symmetry of the colors. At right, four colors are symmetrical and the last two, fully grouped, mirror each other.

5 daisies, uniform centers   4 colors symmetrical, 2 groups mirror

This solution has special properties: three colors are grouped in symmetrical shapes and occupy rotationally symmetrical places around the border. The other three colors are paired in all the different ways and make congruent and rotationally symmetrical patches.

3 colors fully grouped, the other 3 in rotationally congruent patches

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Maximum groupings

These solutions by Kate came from a search for the extreme: grouping colors into their largest patches, and with symmetry. We start with three colors fully grouped and the other three with 5, 6 or even 7 joined, leaving just a few loose hexes dancing symmetrically.

Three-fold symmetry and maximum color grouping   Three 8's, three 6's, all patches symmetrical, the 6 singles at outer corners.

Three colors in 8s all enclosed, three colors in 6s on border, 3 singles all symmetrically placed.   Three colors in 8s all enclosed, three colors in 6s on border, 3 singles all symmetrically placed.

Three colors in 8s all enclosed, three colors in 6s on border, 3 singles all symmetrically placed.   Three congruent colors in 7s all enclosed, three colors in 8s on border, 3 singles all symmetrically placed.

Three colors in 8s symmetrically wrapping the border, three congruent colors in 7s in center, 3 singles all symmetrically placed.   Three colors in 8s as symmetrical brackets, three colors in 7s embracing in center, 3 singles all symmetrically placed.

Three colors as hexagons in 7s all enclosed, three colors in 8s on border, 3 singles all symmetrically placed.   Three colors as hexagons in 7s all enclosed, three colors in 8s on border, 3 singles all symmetrically placed.

Can it get better than this? Well, yes, we can fully join 4 colors and pursue various symmetries, rotational and reflective, and congruent shapes. Here's a nice progress from crude clumps to a full house of symmetries.

Four colors grouped, two enclosed.   Four colors grouped, almost symmetrical.

Four colors grouped--3 loops, a snake, 6 color pairs.   Four colors grouped, each symmetrical, and two smaller symmetrical color patches.

Four colors grouped, three rotational, others centered.   Dan Austin's four colors joined, all symmetrical.

Four colors grouped, all congruent, symmetrical center.   Dan's four colors grouped, all congruent, domino edges.

The search for maximum connectedness with total symmetry goes on.

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Hard to categorize

More solutions by Kate pushing the limits. Left: Color pairs fold to form 6 triangles (outlined in white). Each triangle is composed of a different color trio. Only the pairs on the border are the actual color double tiles. Right: The maximum possible number of dominoes all facing the same direction: 22, with just four singles remaining. Below: Six horizontal stripes in rainbow order, bordered by all single colors with maximum symmetry.

Color pairs form 6 triangles   22 dominoes, uni-directional

6 horizontal rainbow stripes enclosed, others all singles on border

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Your turn

We'll continue to post new patterns with unusual characteristics here as they are discovered. And if you come up with any special solutions, please send them to us to include in this gallery. Digital images preferred, email to: Hexdominoes Gallery. Drawings on paper, snailmail to: Kadon Enterprises, Inc., 1227 Lorene Dr., Suite 16, Pasadena, MD 21122.


www.hexdominoes.com

Hexdominoes have proven themselves so amazing, so rich in design possibilities, that we've given them their own domain name and webpage. We're planning to expand it with new challenges and features. To begin with, both rule books and 19 actual-size grids are contained on this dedicated Hexdominoes site. One of the books even includes games for 2 to 5 players. Check back occasionally for future developments.

To order Hexdominoes, please visit any of the showrooms linked below.



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