Sudoku

[todlangweilig]

Yes, Ideas come in tangible form

[Harrierfalcon]

I was also thinking I could get the sudoku into the game, then when they solve it, simply verify it. That might be OK, and it would certainly allow for multiple solutions, especially if they entered a number of numbers that wouldn't force one solution.

I was thinking of making a small solver that would work on Level 1 sudokus--that is, sudokus that you can solve without assuming anything.

[todlangweilig]

Lets go with both ideas.

If they want to have the program verify that at least 1 solution exists, they'll press a button to do that. They can now go and solve the puzzle, and if they complete it, we'll verify it with prgmCHECK. If they want to give up, they can press another button and have the solution displayed.

If they want to just enter a puzzle and solve it, then that would be fine too. When they get done solving the puzzle, the program will run prgmCHECK to verify the solution.

I'm sure we can solve a level 1, the only question is, how quickly?

[Harrierfalcon]

How would we verify that at least one solution exists? I mean, prgmCHECK checks for all the numbers, not just a few. Would we have to make sure no same numbers exist in the same row/column/box? That makes sense, and I think I could make a prog to do exactly that.

As a little gift to you, I attached the version I have so far. It works fully, and I haven't found any bugs. At this point I'm just adding features and touching stuff up.
Controls (in-game)
--1-9: Enters that number into the box
--Enter: Switches to possibility mode, which enters and numbers you hit into that box as a possibility.
--F5-Opens in-game menu.
Run prgm[THETA] to play.
At this point, you can save only 1 sudoku at a time--I don't think you need any more than that. All the files in the zip are required as subroutines, with exception of the theta-sudoku one. that simply sets up [H] and [I], which are used to save the sudoku. I might be able to compress saved sudokus into one matrix, if I'm lucky and my idea works.

I'll be adding some more sudokus into the generator when I finish most of the other features.

[todlangweilig]

[Harrierfalcon]

No, I was thinking I could compress both matrices into one, then when it loads, break them in half into their respective matrices.

As to your first inquiry, prgmCHECK validates that [A] has exactly one of all the numbers it requires--thus, it does not allow 0's.

Tell me what you think of the pseudo-beta.

[Recursive Acronym]

If you want to do a really good job on this program, you will need a pure random generator. I don't know... what you could do is find the source for a random sudoku generator (googleing sudoku generator source was successful for me). The first result had the downloadable executable as well as the source in C. You would have to learn C if you don't know it, scan through it and find the part that actually generates the sudoku, and then translate it to TI-BASIC. Or Assembly!
It would take a lot of effort, though.

[Harrierfalcon]

Ah, the other thing to consider is speed. Do you really want to wait 10 minutes for a sudoku that takes you 2 minutes to solve?

My 'random' generated sudokus are simply solved sudokus mixed up. This is much faster and easier, and also produces different sudokus each time. Dl it and see for yourself.

EDIT: There is a small bug in the possibilities feature that....just doesn't work. I have fixed it and now the updated version is attached.

EDIT EDIT: Sorry, I am unable to upload the most recent version due to the following error:
THE FOLLOWING ERROR(S) WERE FOUND
The requested file upload failed because suitable permissions have not been enabled on the 'uploads' directory. Please contact the board administrator and inform them of this error.

I apologize for any inconveniences.

[Harrierfalcon]

I WOULD attach the most recent version, but it won't let me, so as soon as I can upload the file to the 'net, I'll get you guys a link for it.

K, I got it. It works for me . This version compresses both matrices into one on saving, and separates them when playing. See the readme.

Click me for Sudoku 1.0 Beta!

EDIT: Or if you're too lazy, AlienCC got the problem fixed (Thanks!) but since I just submitted it to the archives, you can get it there.