Solve puzzles with minimal starting numbers. Use logical deduction to fill grids. Access 20 new puzzles and 100 total. Track progress and revisit previous puzzles. Share solutions and hints via in- features.
Use an with customizable size, position, and color settings. Perform calculations up to 15 digits. Challenge addition, subtraction, multiplication, and division problems. Adjust bead sounds and screen orientation for horizontal use.
Test visual and auditory memory by recalling and re-entering a using a nine-digit keyboard. The length increases each round, and your score improves with faster correct guesses.
Play 9x9 puzzles with daily challenges and adjustable difficulty levels. Choose between day and night modes. Use tips to solve puzzles. Track statistics and view records. Solve puzzles without internet connection.
