Sudoku Vault

Play Now

About Sudoku Vault

Sudoku Vault covers the range properly rather than offering one grid size. Boards come in 4x4, 6x6 and 9x9, each with four difficulty settings — Basic, Normal, Hard and Expert — so it works as an entry point and as a genuine challenge. A notes system lets you pencil in possibilities, and a Check button validates your work by removing incorrect entries and locking the correct ones.

How to Play

Use a mouse or touchpad to select a cell, then choose a number from the on-screen number pad to fill it in. Toggle the Note button to write pencil marks instead of final answers, and tap Check to validate your entries.

Controls

Mouse

Mouse to play

Touch

Tap to interact

Tips & Tricks

Use notes from the start on Hard and Expert rather than only when you get stuck — the whole solving method depends on tracking what each cell could be. Treat Check as a last resort; it locks correct entries, which removes the deduction work that makes the harder grids worth playing.