Brand New - Sealed 

Circular Sudoku is a unique variation on the classic. Featuring a five-ring grid solving system, it requires players to fill in the numbers 0-9 so that every two adjacent slices and each diameter ring contain each number only once. The electronic handheld Sudoku includes more than 1 million computer-generated puzzles. This product received a 2007 iParenting Media Award and a 2007 National Parenting Center Seal of Approval.