Sudoku Vault

Sudoku Vault is a logic-based puzzle game featuring 4x4, 6x6, and 9x9 boards — each with four difficulty levels: Basic, Normal, Hard, and Expert. Whether youre a beginner or an expert, every grid offers a fresh challenge for your mind. Use smart NOTES to keep track of possibilities, and when you want to check your progress, tap the CHECK button — it will remove incorrect inputs and lock the correct ones, helping you stay focused on the solution. With clean design and intuitive controls, Sudoku Vault is the perfect blend of relaxation and brain training.

Tap a cell and place a number from 1 to 9. Fill each row, vertical line, and subgrid with digits 1 to 9 without repeats. Enable the notes feature to track possible numbers. Press the verify button to lock correct entries and remove mistakes. Choose from 4x4 puzzles and basic difficulties. Start with easier puzzles to grasp the technique.