Publisher's Synopsis
A big volume of 300 sudoku puzzles and answers for advanced teen players. Sudoku trains the brain in logic and problem-solving. Fun puzzles to relieve anxiety, and aid stress relief. Playing puzzle games helps with feeling calm. These puzzles are harder than medium or easy. Great as gifts for boys or girls ages 13-19 years. Use for birthday, Valentine's Day, Easter, Christmas, stocking stuffers, white elephant, party favors, secret Santa, and surprises. Gifts for teens that are cousins, friends, sisters, or brothers. Have fun and hours of entertainment playing sudoku.
