Spectrum originated from the classic Sudoku puzzles that have entertained and challenged countless people from around the world. Just as Scrabble evolved from the classic crossword puzzle, Spectrum has already developed a life of its own. Spectrum consists of three distinct games, two of which have a significant alternative method of play. Three Games in One: Spectrum Solitaire, Team Spectrum & Spectrum Challenge.

Features include:

• Spectrum Solitaire - The classic Sudoku based game using a distinctly colored stone in place of the nine digits.
  
• Team Spectrum - Players cooperate with each other to build their own Spectrum grid starting with only nine stones on the board.
  
• Spectrum Challenge - This game combines the problem solving skills of Spectrum Solitaire and Team Spectrum with the aggressive strategic thinking needed to win in all classic board games.
  
• Wood Board with Colored Glass Stones
  
• Drawers for Storage