Scratch

Hello???

a mathematical equation,in this case one that solves a sudoku puzzle.

Sure, AlanProjects! I'm interested in how you plan to tackle this...

I'd like to see it!  I wrote one in Excel VB a while back...but it was easier there because I had arrays.  Doing it in Scratch would be a real challenge.

Jens wrote:

Sure, AlanProjects! I'm interested in how you plan to tackle this...

Alright, I'll start posting soon, it will be a LOOOOOOOOOOOOOOOOONG post. Maybe I'll split it up into several posts, who knows?

Alright, I will start:
First you need to think of your sudoku like this(it helps if you actually write this.):
            a        b        c        d        e        f        g        h        i

(think of the letters above it as part of the image(i didn't put them in    ) )
The uppercase letters denote 3x3 boxes, lowercase letters denote columns, and numbers denote rows.
Now, treat each one as an array. That makes 27 arrays. Now we convert what's on the grid to the array. By default(lol, i mean if a row/column/3x3 box is blank) the array has every number in soduku(1-9). NOTE: in mathematics, what i am calling an array is called a set. if i say set, then you know what i mean. Anyway, if a row/column/3x3 box has a number in it(or numbers) you get rid of them from the array. example:

alright this is how i would  arrange it on paper:
1:
2:
3:
4:
5:
6:
7:
8:
9:
a:
b:
c:
d:
e:
f:
g:
h:
i:
A:
B:
C:
D:
E:
F:
G:
H:
I:
now we start filling this out...... Look in next post( my fingers are sore    )

Last edited by AlanProjects (2008-08-23 19:58:14)

Yay! i finished that. Sorry, i'll continue after i eat and my fingers aren't on fire 

dingdong wrote:

uh... yeah, I'm good at sudoku, but I don't what to say about this, .............................................. WHHHHHHAAAAATTTTTTTTTT!!?!?!?!?!?!?!?

lol! i'm not done yet.

Paddle2See wrote:

I think this topic probably belongs better in Advanced Topics so I'm moving it.

alright, whatever. i think i'll continue posting tommorow.

Cont.:
So now can ya think what you do next? HINT:think of a normal way to solve a soduku.  Now think of how you eliminate numbers from what you know could be in a row/column/3x3 box because they are already in the same row/column/3x3 box.