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.

Click a square and enter a number from 1 to 9. Fill each row, column, and 3x3 box with digits 1 to 9 without repeats. Use the pencil marks feature to record possible numbers. Tap the check button to lock correct entries and clear mistakes. Select from 9x9 puzzles and hard levels. Start with easier puzzles to grasp the logic.