- Click "?" to show this window.
(To close, move the mouse out or click [X] in the upper-right corner)
- The first number on the left, says which puzzle is open.
- The second number (after "/"), says how many puzzles You can find in this section.
- The buttons:
- [|<] Opens sudoku number 1.
- [<<] Opens previous sudoku.
- [>>] Opens next sudoku.
- [>|] Opens last available sudoku.
- To open a Sudoku (of which You know the number), type that number in the first box, then click [N.].
- Thru the pull-down menu, choose the skill-level.

Rules

You must fill out the grid of 256 boxes with these rules:
1) In each line must appear all the numbers (0 through 9) and all the letters 'A' to 'F' (not repeated)
2) In each horizontal row of the grid should appear all 9 numbers and all the letters 'A' to 'F' without repeating.
3) In each 4x4 box must appear all the numbers (0 through 9) and all the letters 'A' to 'F'(not repeated)

the game starts with a few boxes where there is already a number (you cannot change !).

To fill the grid

To put the numbers in the puzzle, choose the box (1 click or use cursor keys on the keyboard).
Type the number to put and (if the rules allow !), the number will fill the box.
To clear a box, use the "space bar" key, or type another number.
To show the solution,click on [Solution].