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- u
- S U D O K U
- by Dave Moorman
-
-
- Evidently, it is the puzzle craze
- of the year. Everywhere I looked while
- post-Christmas shopping, I found hand-
- held Su Doku games and books. My
- sister even had "Su Doku for Dummies".
-
- Never say LOADSTAR misses out on a
- band-wagon ride! Here is SUDOKU with
- an easy-to-use interface, loaded with
- simple to easy problems for you to
- solve.
-
- The concept is simple. Each row,
- column and 3x3 sub-grid must contain
- all numbers, 1 through 9. Some numbers
- are given with the opening of the
- puzzle. Your job is to figure out
- where all the rest go.
-
- With our program, click "Start"
- (or press <S>) to load a puzzle. A box
- cursor appears at the upper-left
- corner of the grid. Use the cursor
- keys or click with the mouse pointer
- to move the box cursor to an open
- space. Press a number key to put that
- number in the space. <SPACE> will
- clear any space not containing one of
- the original puzzle clues.
-
- Since this is a computer, we have
- added some features for your
- convenience. Click "Opts" (or press
- <O>) to open the Options menu. "No
- Help" means just that. Whatever number
- you insert in the puzzle will go
- unchecked. "Warning" will turn the
- background of any number that already
- appears in that row, column, or 3x3
- grid to red. "Block" automatically
- erases any number that is already in
- the row, column, or 3x3 grid.
-
- "Clue" is for the faint of heart!
- It will put the correct number in the
- box cursor's box. I like to use it
- [after] I have made my selection, just
- to check before going on to other
- spaces. "Check" checks the puzzle as
- it appears on the screen against the
- answer. If any number is wrong, you
- return to putting numbers in boxes.
- "Check" will [not] tell you what is
- wrong! You can also check the puzzle
- by pressing <RETURN>. The items on the
- "Options" menu are all hot-keyed (with
- <H> for "Check").
-
- As Sheri and I were beta-testing
- (read: playing around), we noted that
- a Save Puzzle function would be
- useful. Otherwise, one may have to
- choose between sleep or re-doing a
- puzzle from scratch. I decided that
- one Saved Puzzle would be enough. So,
- before you shut down, press <O>, the
- <S> to save your work (read: play).
- When you boot Sudoku the next time,
- you will be asked if you want to load
- the saved puzzle.
-
- Click "Exit" (or press <E>) to
- leave the current puzzle as it is. If
- no puzzle is on the grid, "Exit" exits
- the program.
-
-
- Techno-Babble
- -------------
-
- I intended to carry on at length
- about how clever I was putting this
- program together in about 6 hours.
- However, it really took me much longer
- because I just sat down and started
- whacking away -- creating all kinds of
- problems. DotBASIC makes such programs
- a lot easier. But it will not replace
- well-planned algorithms and logic.
-
- Compare SUDOKU to N-STALL to see
- what nine years means in terms of
- using a Mouse with the C-64.
-
- DMM
-
-
-