The New Sudoku Players' Forum

[Maverick8]

hey.. thanks for all that will be helping me.. i really need to get this done for my highschool math class... it will help boost my mark! PLEASE!

000590600
605100000
009004031
360802005
000000000
900703024
570300200
000000107
002079000

if you can get this! you are my savour!

[tso]

This puzzle is simply too easy to give any specific hints. Nothing complicated is required. If you just want a quick solution, you can use any number of websites, for example, Paul's Pages to spit out the answer.

What methods have you tried?

Have you tried "cross hatching"? Look at the 3s for example. There's already a 3 in the 4th and 6th column and there's one in the 3rd row. That means that the 2nd box only has one cell in which to place its 3, marked with an asterisk. (This tactic is also known as "hidden single".)

Code: Select all

 . . . | 5 9 . | 6 . .
 6 . 5 | 1 * . | . . .
 . . 9 | . . 4 | . 3 1
-------+-------+------
 3 6 . | 8 . 2 | . . 5
 . . . | . . . | . . .
 9 . . | 7 . 3 | & 2 4
-------+-------+------
 5 7 . | 3 . . | 2 . .
 . . . | . . . | 1 . 7
 . . 2 | . 7 9 | . . .


Or take a look at the cell marked with an ampersand. It is in a row, column or box with the digits 1, 2, 3, 4, 5, 6, 7 and 9 -- so the only digit that can go there is an 8. (This is also known as a "naked single.)

Though you *could* try something more complicated, these are the only two tactics required to solve this one.

[Guest]

Hi Tso,

I am wondering how did your make the beautiful "code".

It is typied or generated by some program?

thanks!

[tso]

To use CODE:

1) Make sure "Disable BBCode in this post" is UNCHECKED. It is just below the box you are typing in.

2) Type in or paste in the diagram you wish to be displayed monospaced.

3) Select it.

4) Click on the CODE button just above the box you are typing in. This will place the word "code" in brackets before your diagram and "/code" in brackets at the end of the diagram. (If you wish, you can type these in by hand as well.

Here's a puzzle without the code command:

. 6 . | 3 . . | . . 9
9 . . | . 4 . | . . .
. . 4 | 8 . . | . 5 6
------+-------+------
. . . | . . 9 | . 2 .
. 5 2 | . . . | 7 9 .
. 3 . | 6 . . | . . .
------+-------+------
8 9 . | . . 3 | 2 . .
. . . | . 1 . | . . 4
2 . . | . . 5 | . 3 .


... and again with ...

Code: Select all

. 6 . | 3 . . | . . 9
9 . . | . 4 . | . . .
. . 4 | 8 . . | . 5 6
------+-------+------
. . . | . . 9 | . 2 .
. 5 2 | . . . | 7 9 .
. 3 . | 6 . . | . . .
------+-------+------
8 9 . | . . 3 | 2 . .
. . . | . 1 . | . . 4
2 . . | . . 5 | . 3 .


To see exactly what this looks like during creation, click on the QUOTE button on the upper right area of this post.

[Cec]

To use CODE:
"...To see exactly what this looks like during creation, click on the QUOTE button on the upper right area of this post.

Hi tso,
I'm finding this Code technique interesting too but I see exactly what it will like like after pasting the puzzle and then clicking the "Preview" window at the bottom of the "Post Reply" window rather than click on a "QUOTE" button which I can't find. Is this what you mean or am I doing something wrong?

Cec

[Shazbot]

It's hard to explain how to use the code and /code in a post, 'cause when you type it in EXACTLY as it's to be placed in your reply to work, it MAKES a code block, and you can't see "the magic at work".

I believe tso is saying, if you want to see exactly how you have to format your reply for the correct spacing, you can click on the Quote button on HER post (sorry if I got that wrong tso) and go down until you see the code and /code in brackets [] - that's what YOU have to do in YOUR post to get the same results. You're really not attempting to quote what tso said, just to get her post into its original format so you can see WHAT she did.

Also, when you create your own post, take a look just under the emoticons - you'll see some options there - one will say BBCode is ON. You can click on the BBCode and see some instructions on how to use it. That includes code, as well as making lists, adding links and images, and a whole range of other things.

[MCC]

cecbevwr, look to the right of this post to see the 'quote' button ----------------------->

[Cec]

"It's hard to explain how to use the code and /code in a post..."

Thanks Shazbot and MCC. Yes, it is hard to explain how to use the Code button. I knew where the "Quote" button was - thanks MCC - but thought there may have been another "QUOTE" button somewhere (spelt in capital letters) as mentioned by tso. I certainly wasn't deliberately being difficult in querying this as pressing the "Preview" window shows the desired result provided you do everything correctly.
Thanks again to both of you for clearing this up.

Cheers, Cec

[LarryLACa]

A related question: Is there a way to force the posting editor (which I'm using now) to use a fixed width font? When composing {code} blocks it's hard to get the column alignment right.
The following columns line up in {code} sections but look completely different in the post box.

Code: Select all

        9
........9
llllllll9
mmmmmmmm9
--------9


I'm posting this message to a related topic also:
Related topic 2062

[Rapidsnow]

Ok this is an incredibly easy puzzle, so I shouldn't help you, but I'm nice and I don't like my homework either so.....

Code: Select all

 *-----------*
 |...|59.|6..|
 |6.5|1..|...|
 |..9|..4|.31|
 |---+---+---|
 |36.|8.2|..5|
 |...|...|...|
 |9..|7.3|.24|
 |---+---+---|
 |57.|3..|2..|
 |...|...|1.7|
 |..2|.79|...|
 *-----------*

^ Unsolved   v Solved

 *-----------*
 |134|598|672|
 |625|137|498|
 |789|624|531|
 |---+---+---|
 |367|842|915|
 |248|915|763|
 |951|763|824|
 |---+---+---|
 |576|381|249|
 |493|256|187|
 |812|479|356|
 *-----------*


[QBasicMac]

but I'm nice

Yeah, nice to that person, maybe, but not nice to the rest of the class who will appear less talented. Like letting someone copy your answer on a test.

I presume you are very, very young so I will cut you some slack.

What I really wonder is how this crept into a mathematics class. Because it has digits 1-9?

It seems the instructor is dumber than the homework cheater.

Mac

[Cec]

"...What I really wonder is how this crept into a mathematics class. Because it has digits 1-9? ..."

Hi Mac
My 10-year old grandson gets sudoku puzzles at school. I assume it improves their enthusiasm to work with numbers- apart from maths I can't see what other subject it could be slotted into.

Maverick8 asked for help on 14 December and as he/she is now just getting an answer - I understand school closes early next week - they are probably relieved.
Cec

[Jeff]

.....apart from maths I can't see what other subject it could be slotted into.

Perhaps computer programming.

[Rapidsnow]

Nice as in, I am young and it doesn't have ANYTHING to do with math except for digits 1-9, it is logic, which is why I love it. Also there was only one solution, it was easy, and all of the kids will get the same answer, so he won't look smarter. I'm just saying, its nice to have homework help every once in a while. And I'm sorry to make you angry, but if he doesn't like sudoku, then he can't help it. Why waste your time on something that isn't even relevant to the subject matter? I mean you don't use sudoku in parametric graphing, polynomial functions, or even polar equations... so what's the point? Also, I may have been angry at my math teacher when I posted it, she just gets everything wrong and then assigns us pointless homework (although sudoku is not pointless) to make up for the lack of teaching abilities.

[Cec]

.....apart from maths I can't see what other subject it could be slotted into.

Perhaps computer programming.

Thanks Jeff for replying. I could be wrong but I understand teaching computer skills at school for 10-year olds is basically confined to keyboard operation etc. with the more technical computer programming training coming in at a much later age.
Cec

I'm just saying, its nice to have homework help every once in a while

Gee! this took me back to my very very early school days and I have to agree. I am curious though where Maverick8 has got to after all the above trading of thoughts?

Cec