INTERACTIVE GAMEPLAY - Smart Sudoku is an interactive number-placement game console supporting auto timer, hints and 1v1 battle. Follow the puzzle screen to set a game, the goal is to fill in the spaces so that the number does not repeat in each column, row, and box.. ENGAGING CHALLENGES - Switch between 4x4 and 6x6 Sudoku grids to suit your skill level. With 2500 puzzles ranging from beginner to master level, it ensures an exciting, progressive challenge for everyone.. ENHANCES COGNITIVE SKILLS - Spark your mind with Smart Sudoku This brain teaser puzzle will bring the kids hours of fun and entertainment all while improving their memory, early math, critical thinking, logic and problem-solving skills.. PORTABLE FOR TRAVEL - Whether at home, on a road trip, or in flight, Smart Sudoku is the perfect companion for endless fun and mental exercise, giving you a break from the screen.. GREAT GIFT IDEA - Whether youre shopping for holidays, birthdays, or just because, it's a unique and engaging brain game that offers lasting enjoyment and cognitive benefits. Ideal gift for Halloween, Christmas, Stocking Stuffers, or even for homeschooling..