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# Write here the info to show in the help screen
# Line breaks are preserved on the device display!
The aim of the puzzle is to enter a numeral from 1 through 9 in each cell of the grid (made up of 3×3 subgrids called regions), starting with the numerals given in some cells.
Each row, column and region must contain only one instance of each numeral.
To play, move the cursor using the joypad (or, depending on your device model, numeric keys), press the fire button (or 5 key) and use numeric keys to enter or overwrite a number in the selected cell (0 key deletes a previously entered number).
Alternatively, if your device does not have a numeric keypad (or simply if you feel more comfortable this way!) you can use the menu to change the input mode, so that you can enter a number in a cell by repeatedly pushing the joypad up or down.
Finally, a third input mode is available, which allows you to use the joypad to move the cursor and the numpad to type numbers directly into the selected cell.
The game menu allows you to choose the difficulty level (either Medium or Difficult), the grid background, to show the solution of the current grid, to restart the game and to exit (saving the current grid).
