Sudoku is a number puzzle game. The goal is to fill in the empty cells with numbers from 1 to 9 so that each row, column, and 3x3 block contains all the numbers from 1 to 9 without repeating.

The game starts with a partially filled 9x9 grid. The difficulty of the puzzle depends on the number of cells filled in at the beginning.

The game is won when all the cells are filled in correctly.

Sudoku :

Fill in the empty cells with numbers from 1 to 9 so that each row, column, and 3x3 block contains all the numbers from 1 to 9 without repeating.

Killer (uninstalled) :

Fill in the empty cells with numbers from 1 to 9 so that each row, column, and 3x3 block contains all the numbers from 1 to 9 without repeating.

Top Bar :

The top bar displays the number of mistakes made, and the timer.

Game Board :

The game board is a 9x9 grid where you can fill in the numbers.

Number Panel :

The number panel is a 3x3 grid where you can select the number to fill in the cells.

Mode Selector :

The mode selector is a button that allows you to switch between Sudoku and Killer modes.

Undo/Redo :

The undo/redo buttons allow you to undo or redo the last action.

Check :

The check button checks the correctness of the numbers filled in the cells.