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  1. #1
    CC resident nutcase Trent Parker's Avatar
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    White to play and win

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    Last edited by Trent Parker; 20-08-2007 at 03:36 AM.
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  2. #2
    CC Candidate Master DanielBell's Avatar
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    The only thing I could think to do would be pawn to c7???? I sat here with winboard trying to find ways to draw it by sacrificing the rook for the pawn but it seems the pawn can evade capture pretty well with all the white continuations I tried :|

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  3. #3
    Reader in Slood Dynamics Rincewind's Avatar
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    If I remember correctly (I've seen this before so no prize) The idea is 1.c7 then 1....Rd6+ 2.Kb5 Rd5 3.Kb4 Rd4+ 4.Kb3 Rd3+ 5.Kc2!
    The king could come to the c-file earlier because fo the line Rd1, threatening Rc1+ and winning the promoted pawn.


    No prize as I used memory and did not work it out from scratch.

    Edit: That's not quite true. 4.Kc3 is ok because of 4...Rd1 Kc2 but it is only a minor variation.
    So einfach wie möglich, aber nicht einfacher - Albert Einstein

  4. #4
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    It is a very well known (almost famous) study by Barber, attributed to Saavedra. (hope I spelled the names correctly.)
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  5. #5
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    TO Rincewind:

    Black can keep resisting 5...Rd4 6.c8Q Rc4+!! 7.Qxc4 stalemate
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  6. #6
    CC Grandmaster Basil's Avatar
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    It is the Saavedra position. Igor are you saying that it is a draw? It was initially thought to be a draw and then was discovered as a win with ... {white text} under promotion to a rook
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  7. #7
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    Quote Originally Posted by Gunner Duggan
    It is the Saavedra position. Igor are you saying that it is a draw?
    No, but Rincewind solution wasn't complete.

    BTW, Saavedra did not produce this study, just found a key move that Barber missed and showed it to him. Barber, being an honest person, published a correction and credited it to Saavedra. Somehow only Saavedra name remained in the history
    Last edited by Igor_Goldenberg; 20-08-2007 at 02:20 PM.
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  8. #8
    CC Grandmaster Basil's Avatar
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    Quote Originally Posted by Igor_Goldenberg
    BTW, Saavedra did not produce this study, just found a key move that Barber missed and showed it to him. Barber, being an honest person, published a correction and credited it to Saavedra. Somehow only Saavedra name remained in the history
    Indeed. I was unaware of the history until a few months ago when reading some old Australian chess mags and caught a very interesting article by Purdy on the subject - most in depth and ran for more than a couple of pages.
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  9. #9
    Monster of the deep Kevin Bonham's Avatar
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    What happened was that Barbier (correct spelling) published the puzzle as a position that had occurred in a real game, and then Saavedra wrote in pointing out the win (see here).

  10. #10
    Reader in Slood Dynamics Rincewind's Avatar
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    To Igor...

    Sorry, underpromotion works to avoid that stalemate. So if 5... Rd4 {continued resistance} 6.c8=R {now threatening mate on the a-file} Ra4 7.Kb3 {and mate on the first rank cannot be prevented without giving up the rook}
    So einfach wie möglich, aber nicht einfacher - Albert Einstein

  11. #11
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    To Rincewind...

    I think he gets it..

  12. #12
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    To pax...

    I think he knew it.

  13. #13
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    To all

    Pineapples!

  14. #14
    Reader in Slood Dynamics Rincewind's Avatar
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    To Pax...

    Yes, I'm sure he did but has Igor didn't post the solution I thought I might as well complete the task I started for the benefit of anyone else who might be interested. It is a beautiful line and I'm a bit disappointed that I had forgotten it after remembering the first part of the solution.
    So einfach wie möglich, aber nicht einfacher - Albert Einstein

  15. #15
    CC Grandmaster road runner's Avatar
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    I like icecream.
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