1What is a Sudoku? &	Sudoku is a number placement puzzle. The player has to fill in a 9*9 grid so that each row, column and 3*3 subgrid contains all digits from 1 to 9. Each puzzle has a unique solution that can be reached by logical reasoning and without guessing.\Playing Sudoku&	1) Press "New Game" to get a new puzzle.

	2) To fill in a cell in the grid, make sure that you have selected the desired digit from the number keypad and left-click on the cell.

	3) If the number appears in red, it means that this number already exists in this row, column or region.

	4) The yellow button with nothing on it is an eraser. If it is pressed "down", a left-click will delete the entry in this cell.

	5) See next page for the explanation of the "?" (candidates) button.\"?"-button&	Solving a Sudoku puzzle may sometimes require you to remember the possible candidates for several cells at the same time. The "?"-button enables you to write more than one digit in a cell (candidates for this cell) working as a visual memory aid.

	If the button is pressed down (the question mark is green) all digits will be entered as "candidates" in smaller font and preceeded by a question mark. That means that they are not treated as real entries and technically the cell is still empty (e.g, candidates will be ignored by the solver). It also means that candidates will not be checked for obvious errors.

	To enter digits as part of the solution, press the "?"-button again, so it turns red.

	It is recommended to clean up the fields from time to time because otherwise the general picture can get rather blurred in the long run.\"Check" button&	Compares player's solution with the actual solution and highlights any mistakes in red.

	Since it does not only seek for apparent conflicts, cells that did not turn red when filling them in, may get highlighted now.

	This function should be quite helpful for a novice Sudoku solver. However, an experienced solver should use it only in rare cases because it also makes "cheating" possible. Keep in mind that you are only competing against yourself.\Using program as a solver&	1) Choose "Solver" from the "Options>Action" menu.

	2) Fill in the clues, using the number keypad and left-clicking on the grid.
	This step is optional because normally the solver should also read data entered in other modes. Therefore it is also possible, for example, to let the program finish your half-finished puzzles.

	3) Press "Solve".
The program also tells you if the puzzle was solved by logical methods (known to it) or if brute-force trial-and-error methods were used. In the latter case, the entered puzzle may have several solutions.\Menus: Game&	"Load/Delete Game"
Opens a Sudoku puzzle that has been previously saved in the "Games" folder and lets you delete saved games.

	"Save Game"
Saves the current puzzle in the "Games" folder with the name entered by the player. No file extension should be added to the filename.

	"Print"
Prints the puzzle as it currently is.

	"Help"
Opens the current help window.\Menus: Options&	"Difficulty"
Select difficulty level for the created puzzles.

	"Action"
Choose whether to use SudokuMaster as a puzzle generator or solver. It also lets you access the tutorial. (See next page.)\Tutorial&	A short tutorial that gives a few examples of some basic Sudoku solving techniques can be accessed from the "Options>Actions" menu. To start viewing the tutorial press "Start" button and then navigate it with "Next" and "Back". The tutorial is exited automatically if "Next" is pressed after the last page is displayed or from the menu at any point.

	You may sometimes need to reposition the explaining notice and/or main program window to get a better view of the board.

	Note that the examples are just illustrations of various techniques and not full solvable puzzles. Also note that the continuations of the examples have additional clues. These did not come out of the blue. Consider it as a shift of attention to other parts of the puzzle.\About&	SudokuMaster2005 by uncleBen.

	Written in Just BASIC v1.01