Offers unique handcrafted puzzles in standard, symmetrical, and patterned styles. Users can select from four skill levels and choose multiple color schemes. The highlights incorrect answers in red and allows multiple notes for puzzle solving.
Solve puzzles with 6 difficulty levels from Beginner to Master. Use smart hints to guide logical steps. Track progress and replay puzzles. Customize settings for difficulty and hint frequency. Share completed puzzles via social media.
Solve by filling a 9x9 grid with numbers 1-9. Ensure each row, column, and 3x3 box contains unique numbers. Features include puzzle selection, difficulty levels, and hints. Track progress and complete logically without guessing.