Loved by players of every age and skill level, the goal of Sudoku - a fun, addictive logic game - is to fill all 81 spaces on the 9x9 playing area with numbers, such that all digits 1-9 are used once per row, per column and per 3x3 region. Designed with balance in mind, our innovative approach to Sudoku equally engages both halves of the brain - the right side works on numerical challenges and reasoning while the left side focuses on color patterns and creativity. Although the large game board and colorful numbered pieces are designed to be enjoyed collaboratively with a partner, it's just as fun to play individually. Each Set includes: 1) Game Board (11.4" x 11.4") with Colored areas easy to distinguish each 3x3 region and indented round spaces to keep everything in place. 2) Round Game Pieces (216) includes, 81 primary game pieces which are identifiable by both colors and numbers and has a black or white star on its reverse side for use in other games, and 135 secondary game pieces with 15 of each number which are smooth and can move and slide easily. 3) Covered Storage Tray for easy to organize and store game pieces with ergonomic, rounded design which makes accessing the smooth game pieces easy. 4) Sukugo® Booklet with game instructions and 100 Sudoku games (10 levels of difficulty) and solutions. And 5) Carrying Case with Padded, zipper-closing case fits easily on a bookshelf and external pocket holds game piece tray and booklet.