Trazo 9 Sudoku

Fill the Sudoku grid so each row, column and box contains the digits 1–9. Choose a difficulty or a daily puzzle, with notes, Undo, limited hints and local saves.

Controls

Select a cell and choose a digit from the number pad. Keyboard: 1–9 to enter, arrow keys to move, N for notes. Undo, erase, hints and pause are on the control panel.

How to play

Fill the 9×9 grid with digits 1 through 9. Each row, column and 3×3 box must contain each digit exactly once. Use notes to track candidates before committing a number.

Select a cell and choose a digit from the number pad. Keyboard: 1–9 to enter, arrow keys to move, N for notes. Undo, erase, hints and pause are on the control panel.

Modes and local progress

Settle into a Sudoku puzzle with four difficulty levels and uniquely solvable boards. Trazo 9 offers pencil notes, limited hints, error checks, undo and a daily challenge. Your current puzzle and statistics stay in this browser so you can return later.

ZAROCER opens this build in English. Progress and records stay in this browser when storage is available. Use native continuation controls after reloading. Clearing site data can remove saves. Pause, Theater and Fullscreen preserve one game instance.