flsudoku - the fltk sudoku game
is a FLTK-based version of the game of Sudoku. Sudoku (pronounced
soo-dough-coo with the emphasis on the first syllable) is a simple
number-based puzzle/game played on a 9x9 grid that is divided into 3x3
subgrids. The goal is to enter a number from 1 to 9 in each cell so that each
number appears only once in each column and row.
At the start of a new game, Sudoku fills in a random selection of cells for you
- the number of cells depends on the difficulty level you use. Click in any of
the empty cells or use the arrow keys to highlight individual cells and press
a number from 1 to 9 to fill in the cell. To clear a cell, press 0, Delete, or
Backspace. As you complete each subgrid, correct subgrids are highlighted in
green. When you have successfully completed all subgrids, the entire puzzle is
highlighted until you start a new game.
As you work to complete the puzzle, you can display possible solutions inside
each cell by holding the Shift key and pressing each number in turn. Repeat
the process to remove individual numbers, or press a number without the Shift
key to replace them with the actual number to use.
FLTK Web Site, http://www.fltk.org/
Michael R Sweet.