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Thread: Chess problem

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    Re: Chess problem

    Yes it can... <img src=/S/grin.gif border=0 alt=grin width=15 height=15>
    <font color=448800><font face="Comic Sans MS"><big>Lyra J </font color=448800></font face=comic></big>
    <img src=/S/flags/UK.gif border=0 alt=UK width=30 height=18> Ducking the arrows in Robin Hood country <IMG SRC=http://www.wopr.com/w3tuserpics/Lyra_J_sig.gif ALT="No, Admins, no! I'm sorry, okay!" title="No, Admins, no! I'm sorry, okay!">

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    Re: Chess problem

    Well go on smarty pants, prove it <img src=/S/bif.gif border=0 alt=bif width=70 height=28> <img src=/S/grin.gif border=0 alt=grin width=15 height=15>
    Jerry

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    Re: Chess problem

    Actually, no I don't think you can- you end up leaving one of the grey squares in the centre...

    At least I know ONE of my answers is correct! <img src=/S/doh.gif border=0 alt=doh width=15 height=15>
    <font color=448800><font face="Comic Sans MS"><big>Lyra J </font color=448800></font face=comic></big>
    <img src=/S/flags/UK.gif border=0 alt=UK width=30 height=18> Ducking the arrows in Robin Hood country <IMG SRC=http://www.wopr.com/w3tuserpics/Lyra_J_sig.gif ALT="No, Admins, no! I'm sorry, okay!" title="No, Admins, no! I'm sorry, okay!">

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    Re: Chess problem

    Jezza

    Is this not a cut-down version of the standard Knight's Tour?

    John

    PS which is said here not to be possible for a 3x5 board...
    <font face="Script MT Bold"><font color=blue><big><big>John</big></big></font color=blue></font face=script>

    Ita, esto, quidcumque...

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    Re: Chess problem

    Hi John

    <span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">Grrrr... Yes it is. You stole my fun for Chess problem 2 which was the 5 x 5</span hide> <img src=/S/grin.gif border=0 alt=grin width=15 height=15>
    Jerry

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    Re: Chess problem

    <span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">You've got it - more or less.
    The knight starts out on a white square; whatever move he makes, he will land on a grey square, then on a white square again etc.
    So squares 1, 3, 5, .. will be white and squares 2, 4, 6, ... will be grey. After 14 steps, he would have been on 8 white squares (including the starting point) and 7 grey squares, but the board contains 7 white and 8 grey squares. Contradiction!</span hide>

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    Re: Chess problem

    No, sorry -- if you believe several websites which say that the knight's tour for a 3 x n board is possible only for n >= 7...

    John
    <font face="Script MT Bold"><font color=blue><big><big>John</big></big></font color=blue></font face=script>

    Ita, esto, quidcumque...

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    Chess problem

    The attached image depicts a miniature chess board. The happy face is a knight ( sorry couldn't find a suitable image for a horse)

    Using standard rules on how a knight moves on a board, make the knight visit every square on the board once and only once. Currently he is on square 1, the next square he lands on will be 2...etc

    Can this be done?


    I have changed the image over. My apologies, I was going to use the other one for a different puzzle
    Jerry

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    Re: Chess problem

    <P ID="edit" class=small>(Edited by Rudi on 13-Apr-05 16:10. Only to find out that it ain't possible...(that was nasty!)= Grrrrrrrrrrrr)</P>After about 20 attempts, the closest I've come is 3 squares open <img src=/S/sad.gif border=0 alt=sad width=15 height=15>
    Regards,
    Rudi

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    Re: Chess problem

    i got it down to the last grey square (mid right)
    <img src=/w3timages/blueline.gif width=33% height=2>
    <big>John</big>

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