Sudoku Game

This is the browser extension version of the famous logic game: Sudoku. Simply click on the Sudoku icon in the browser panel to open a popup with the game.
★ How to play ★ Your goal is to fill all fields without breaking the constraints that each number can only appear once in each row, column, and box.
★ New feature ★ Notes. Now you can insert up to 4 notes in one cell. Notes can be quickly and easily removed or edited. Notes don't count as answers and give you the opportunity to solve Sudoku faster and more conveniently.