1. Professional Sudoku gameplay:
• Extremely simple rules: no repeated numbers in any row, column or 3×3 subgrid. Easy to learn, yet offers endless strategic possibilities.
• Dynamic difficulty adjustment: Smart algorithm adjusts puzzle difficulty in real time, ensuring the perfect challenge for every skill level, from beginner to master.

2. Stepped difficulty mode: Easy, Medium, Hard, Master and Daily Challenge.

3. Performance report:
Track your solving speed, accuracy, difficulty levels overcome, progress and personal bests.