History of the Game:

October 2005
After being introduced to Sudoku while visiting his daughter in Los Angeles, Jack Hohenstein came up with the first version of Team Spectrum using colors rather than numbers.  Team Spectrum allowed for a multiplayer format so that a group of people could enjoy playing together.  

Jack shared his new game idea with his son Mike.  Being the youngest of seven siblings and well acquainted with competition, Mike naturally came up with a way to make the game competitive.  Spectrum Challenge was the result.  Using colored paper squares and a sectioned off portion of one of the most famous board games of all time, Jack and Mike tested and played the games with the whole family over the Thanksgiving weekend. 

December 2005
The game was a hit.  Over the next month, Jack's son, John, designed the board shown below. Replacing the paper squares with flat glass marbles, and the plastic board with a routed wood playing surface.  The flat glass marbles seemed a logical choice, but finding the nine distinct colors of was more than a trip to the craft store.  After locating the right stones and after piles of sawdust and puddles of stain, the first games were ready.

The game board and stones allowed Jack to dig deeper into the basis of Sudoku.  A retired math teacher, he began creating his own puzzles.  All the puzzles provided in the instruction booklet for Spectrum Solitaire have been created by Jack and are not computer generated.

January 2006
Mike hit the bricks soon after the new year in search of a manufacturer to help bring the game to market.  Spectrum. More Than Just Sudoku has been licensed exclusively to Wood Expressions Inc. of Gardena, CA.  The prototype debuted in February 2007 at Toy Fair in New York, and first run production games hit the market place in December 2007.  We hope that you and your family will enjoy the game as much as we do.