Sudoku
======

Introduction
------------
What do you mean, Suduko's a Grannies' game?! Not this one! You wanna
challenge? You got it!

Suduku is a number logic game. This version of Sudoku gives you the
choice of grid size and game difficulty.

In 9x9 grid mode, you must ensure that the numbers 1-9 exist only
once in each row, column and sub-grid. The puzzle is completed
when all spaces have been filled.



Joypad Mode
-----------
The cursor is controlled using left, right, up, down and select
only.

Please select gameplay to get access to numbers and options.

The music icon can be used to toggle the music on/off (128K version
only).
The pen/pencil icon can be used to toggle between pencil/pen mode.
The spanner icon is used to access options.
The X icon is used to delete pen/pencil marks.

In pencil mode, selecting a number will add a pencil mark. If a 
pencil mark already exists, it will erase it.

In pen mode, selecting a number will enter a number and replace
any pencil marks.



Number Mode
-----------
The cursor is moved using the left, right, up and down keys.
Select pauses.
Press S to toggle music on/off (128K Version only).
Press P to toggle between pen and pencil mode.
In pencil mode, the numbers 1-9, A-C to enter pencil marks.
In pen mode, the numbers 1-9, A-C to enter pan mark
E erases all pencil/pen marks.



Play Options
------------
Continue - Go back to game
Save Point - Set a save point (record current grid) or restore a
save point (go back to a saved grid)
Restart - Restart game
Quit - Quit Game