• Combinatorix
• Combi Jr.
• Triangoes
• Triangoes Jr.
• Boats
• Hexdominoes
• Ochominoes
• Twenty-Tans
• Handy-Tans

• Harrybourne
• StarHex-I
• StarHex-II
• Rombix Jr.
• Cubits
• Quintapaths
• Diamond Star
• Intarsia
• Dezign-8

• Diamond Rainbow
• The Crab (Le Crabe)
• Grand Tans
• Archimedes' Square/Monograph
• Tangramion
• Shadow Play
• Chasing Squares
• Coloring books (3)

• Deka-Mosaik
• Deka-Star
• Kite-Mosaik
• Fractiles-7/travel set
• RhombStar-7
• Pocket Rhombs
• Hex-Pave
• Birds and Bees
• Q-Bix

COMBINATORIX^TM
From unity to complexity: how forms combine and grow.

This set was four years in development. It is a fine resource for tessellations and explorations, plus 17 multi-player games. A geometry lab for home or classroom, Combinatorix contains 512 wood tiles in all (and yes, you really need at least that many for some of the projects). Squares, equilateral triangles, hexagons, and isosceles right triangles have 1" unit sides, are 1/4" thick for easy handling, and are supplied in four colors. The set includes three large vinyl game grids and 3 workbooks for competitive, solo and cooperative activities, all in a sturdy wood chest, 26x14x3", that's finished like fine furniture by a master craftsman. Protective velvet cover included. For 1 to 27 players, ages 6 to adult. $325 (plus $15 oversize shipping surcharge)

A gracefully proportioned subset of Combinatorix, this group of squares, equilateral triangles, hexagons, and isosceles right triangles has its own 40-page booklet of explorations, designs and games. Approximately 55 wood tiles have 1" unit sides, are 1/4" thick for easy handling, and mix the four colors shown in all-different assortments within the 11" rounded triangular tray. No two sets are exactly alike. Display stand included. For 1 to 3 players, ages 6 to adult.$49

This is one of our larger creations, over 6 years in development—squares, parallelograms, and triangles in every combination of 5 colors form 80 unique, hand-inlaid acrylic tiles. The booklet provides hundreds of progressively more intricate puzzles plus rules for 15 games. The two-sided vinyl gameboard is a colorful 13x36" banner with rod and cord ready to hang (shown at left). For 1 to 10 players, ages 8 to adult.Triangoes had its world premiere in Houston in summer 1987 and appeared on Games magazine's 1988 list of best games. $225

Triangoes Jr. is a two-color subset of Triangoes, in an 8½" tray. It's one of our bestsellers and continues to delight us with its surprising symmetries. The 17 acrylic tiles (one sample shown at right) form a large number of puzzle shapes, with various color themes. If you've enjoyed tangrams, this set goes an extra distance. Four easy games are also included. Choose from 6 color mixes. For its 25th anniversary in 2012, we added some silver touches. Suitable for 1 or 2 players, ages 8 to adult. $65

Runner-Up in Puzzles category,
2004 Games 100

This enchanting set was designed and developed entirely by trans-Atlantic email between Mike Roberts and Kate Jones. The ideas and messages grew and flew feverishly for months, and at last we stopped at 101 beautiful and challenging figures formed by matching the boat-shaped tiles by color. The 36 tiles comprise all the ways 6 colors can be paired. Here's a sample tile. They're so nice to handle, all smooth and hand-inlaid acrylic in rainbow colors. The 13 islands in the 11" tray are fixed in place. Outside the tray 100 other exquisite lattices await. Several competitive games are included. For 1 to 4 players, ages 8 to adult.$95

This delightful rainbow set, all hand-inlaid acrylic, was an instant hit and never ceases to surprise us with its variations and versatility. The 21 double tiles ("dihexes") comprise all the ways 6 colors can be paired. Here's a sample tile. Add the 6 single hexes, one of each color, and a landscape of color matches, color patches, non-matches and non-duplications invites exploration. The hardest are solutions with no two of the same color in any row (the "Latin" arrays). Some things even 5-year-olds can handle, with relish. Build with 4, 5 and all 6 colors, and solve "Hexmate" patterns that challenge you to replicate them on the grids provided. Outside the 11" tray 89 other exquisite figures await, and you can create countless others of your own designs. Three competitive games are included. For 1 to 5 players, ages 8 to adult.$95

The 24 tiles of this set are paired octagons (octagon dominoes) with 0 to 6 squares attached on their edges—a new polyform set called polyocts. The Ochominoes tiles are level two, or diocts. Many look like goofy cartoon characters, color-coded for the number of squares the members of each group have. There are a dizzying number of different awesome figures and patterns to build with some or all of the 24 Ochominoes tiles. The solution shown at left is a rare arrangement where no two of the same color touch. See also color-grouping, color separation, symmetrical pairs, and clan symmetries. The 8½" tray holds a 7x8 array of pieces plus four black "bars"—two that are 4 octagons in length and two of length 3. These fillers add a decorative touch and are useful dividers for arrangements in and out of the tray. Color mix may vary. The booklet (.pdf) has rules for 2 games and is chockful of fun and creative themes solved by Dan through months of determined exploration. For 1 to 4 players, ages 8 to adult.$65

In the beginning were Tangrams, a set of 7 tiles based on triangles derived from squares cut in half diagonally. They date back to the 17th century. Here is their latest brilliant and colorful embodiment. True to their mathematical purity, the 20 tiles cover 16 squares and can form hundreds of figures. We start them as a "stretched hexagon" with color separation. Each color supplies 5 tiles, a "hand" that covers a 2x2 square and 63 other symmetrical shapes. And so can two hands, and all four hands, in ascending sizes. Explore figures with many edges and large enclosures, letters of the alphabet and picturesque designs provided in the booklet, and create your own. Play with color patterns as well, a movable work of art. You'll never run out of challenges. Display stand included. For ages 6 to adult. $49

Just five little pieces for big fun. The combinations of half-squares (isosceles right triangles) lend themselves to amazing varieties of figures in silhouette form. The five pieces cover an area of 4 squares (tetrominoes) or 8 triangles (octatans). There are 1116 octatans, of which 88 are symmetrical, only 64 of which are solvable with the Handy-Tans set. We include those 64 in the booklet for you to solve. Then track down how many of the remaining 1052 octatans are also solvable! In a unique game, score points for the length of borders you build. Solid-color "hand" stores in neat little pouch. Colors may vary; four samples are shown. For 1 or 2 players, ages 6 to adult. $12
(Shipping discount)