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Thread: Grid 2

  1. #1
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    Re: Grid 2

    Rob

    What are the rules?

    Judging by the layout I am guessing each row & column must contain the numbers 1-9 and each of the highlighted 3X3 blocks must also contain the number 1-9

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    Grid 2

    Due to overwhelming popular demand, here is another number grid puzzle. This one can be solved using reasoning as opposed to trial and error.

    Complete the grid such that every row, every column, and the nine 3x3 blocks contain the digits from 1 to 9.
    <font color=blue><font face="Script MT Bold"><big>Rob</big></font face=script></font color=blue>

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    Re: Grid 2

    Quite right, Tony. I have edited the post so that it makes sense.
    <font color=blue><font face="Script MT Bold"><big>Rob</big></font face=script></font color=blue>

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    Re: Grid 2

    Hans,

    Please check your number in R3C1.
    <font color=blue><font face="Script MT Bold"><big>Rob</big></font face=script></font color=blue>

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    Re: Grid 2

    Here is the hopefully correct version:

    <table border=1> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td> <td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td> </table>

  6. #6
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    Re: Grid 2

    Incorrect solution - see below

    <table border=1><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">5</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">8</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">6</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">2</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">4</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">1</span hide></td><td align=center><span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">7</span hide></td></table>

  7. #7
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    Re: Grid 2

    Rob

    After your last Grid puzzle ( I was almost there until I found the last square didn't add up ...grrrrrr) I knew I could do this one
    Jerry

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    Re: Grid 2

    Weii done, Hans and Jezza!
    <font color=blue><font face="Script MT Bold"><big>Rob</big></font face=script></font color=blue>

  9. #9
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    Re: Grid 2

    Oy weii!

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    Re: Grid 2

    Sorry Hans, I don't speak Dutch. What would the Hebrew equivalent be? <img src=/S/grin.gif border=0 alt=grin width=15 height=15>
    <font color=blue><font face="Script MT Bold"><big>Rob</big></font face=script></font color=blue>

  11. #11
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    Re: Grid 2

    Am I missing something - I could get 3 squares thru reasoning but then I was stuck ...
    (Location Australia, then UK, but now USA. Heart, outlook, attitude, etc always Australian)
    Quote: "All Happiness is the release of internal pressure"

  12. #12
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    Re: Grid 2

    Tim

    This may help.

    Sudoku puzzles

    It gives you some good techniques on how to solve these puzzles, after a while you kind of flow into your own methods.
    Jerry

  13. #13
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    Re: Grid 2

    It also helps if I read the instructions ... I failed to see the part about "the 3x3 contain the numbers 1-9" I was solving as if the rows / columns contained the numbers 1-9.
    (Location Australia, then UK, but now USA. Heart, outlook, attitude, etc always Australian)
    Quote: "All Happiness is the release of internal pressure"

  14. #14
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    Re: Grid 2

    Hi Tim,

    Common fault - I am constantly telling my pupils that if all else fails, read the instructions. <img src=/S/grin.gif border=0 alt=grin width=15 height=15>

    Thanks for the link, Jezza.
    <font color=blue><font face="Script MT Bold"><big>Rob</big></font face=script></font color=blue>

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