How To Play

  • Select difficulty level by clicking the text next to the big red title "Sudoku"
  • Fill cells with numbers from 1 to 9
  • Pick a number by clicking a cell (with the mouse) or a keyboard [1-9] key
  • Delete a number by clicking a cell's (x) button or pressing the 'Delete' key while mouse is over a cell
  • The board has 9 regions, each has 9 cells
  • Rule 1 - each Region consist of unique numbers (1-9)
  • Rule 2 - each Row of the board consist of unique numbers (1-9)
  • Rule 3 - each Column of the board consist of unique numbers (1-9)