1. In Christ
    Joined
    30 Apr '07
    Moves
    172
    07 Sep '08 13:301 edit
    Black

    White

    23.0 moves (position after Black's twenty-third move)

    So I was just browsing through some old threads when I found one asking for the most beautiful chess problems ever composed. SwissGambit submitted this proof game. Then I realized that no one (including myself) had attempted to solve it then. So I spent the last 45 minutes doing just that. And I do think it is indeed a very beautiful solution. Oddly enough, it is somewhat reminiscent of one of my previous proof games (those who manage to solve this and have solved the one I'm referring to will see the resemblance). Anyway, I thought it deserved its own thread for people who want to solve it and appreciate its beauty.

    EDIT: Please send your solutions instead of posting them so others will have a chance to solve it.
  2. Standard memberSwissGambit
    Caninus Interruptus
    2014.05.01
    Joined
    11 Apr '07
    Moves
    92274
    08 Sep '08 20:23
    Originally posted by Jirakon
    Black
    [fen]r1R2Bnk/ppp2ppp/4pR2/2pB4/N1PP4/1PP1KPP1/5PP1/1N6[/fen]
    White

    23.0 moves (position after Black's twenty-third move)

    So I was just browsing through some old threads when I found one asking for the most beautiful chess problems ever composed. SwissGambit submitted this proof game. Then I realized that no one (including myself) had attempted ...[text shortened]... : Please send your solutions instead of posting them so others will have a chance to solve it.
    Yes, this is indeed a PG well worth solving. However, I think the PG solvers here have gone away. You and I are probably the only ones who would bother nowadays.
  3. Joined
    12 Sep '07
    Moves
    2668
    09 Sep '08 01:00
    I do try, but i generally just fail miserably.
  4. Standard memberSwissGambit
    Caninus Interruptus
    2014.05.01
    Joined
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    92274
    09 Sep '08 01:38
    Originally posted by Dejection
    I do try, but i generally just fail miserably.
    You are counting minimal moves first, yes?
  5. Joined
    25 Apr '06
    Moves
    5939
    09 Sep '08 08:21
    Originally posted by SwissGambit
    You are counting minimal moves first, yes?
    I have just tried doing only that, but already there I stumble on difficulties. Perhaps I'm not following the correct method.
  6. Standard memberSwissGambit
    Caninus Interruptus
    2014.05.01
    Joined
    11 Apr '07
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    92274
    09 Sep '08 16:49
    Originally posted by heinzkat
    I have just tried doing only that, but already there I stumble on difficulties. Perhaps I'm not following the correct method.
    What count did you get for White?
  7. Standard memberforkedknight
    Defend the Universe
    127.0.0.1
    Joined
    18 Dec '03
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    16018
    09 Sep '08 17:16
    I get 19 for white
  8. Standard memberforkedknight
    Defend the Universe
    127.0.0.1
    Joined
    18 Dec '03
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    16018
    09 Sep '08 17:17
    I've never really tried solving proof games, nor read any strategy. It's something I should try though.
  9. Standard memberSwissGambit
    Caninus Interruptus
    2014.05.01
    Joined
    11 Apr '07
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    92274
    09 Sep '08 19:56
    Originally posted by forkedknight
    I get 19 for white
    That's too few. Remember pieces like Nb1 are permanent obstacles [unless you commit 2 moves to move him out of the way and back again].
  10. In Christ
    Joined
    30 Apr '07
    Moves
    172
    09 Sep '08 21:23
    You also need to include the Queen's moves. How many moves must she make to get to either of the squares she could possibly have been captured on?
  11. Joined
    15 Oct '07
    Moves
    4056
    12 Sep '08 12:19
    Im usually terrible at these proof games so i can make whites minimal number of moves to be 23
    now as for blacks moves.... absolutely no idea
  12. Standard memberSwissGambit
    Caninus Interruptus
    2014.05.01
    Joined
    11 Apr '07
    Moves
    92274
    12 Sep '08 16:30
    Originally posted by banx99
    Im usually terrible at these proof games so i can make whites minimal number of moves to be 23
    now as for blacks moves.... absolutely no idea
    Don't even worry about Black's minimal moves. Try to use Black to help White keep moving on schedule.
  13. SubscriberD4V
    Hard Spanker
    Verona, Italy
    Joined
    15 Jul '06
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    146317
    17 Sep '08 16:29
    Someone can post the solution (here o by private message)?
    Thanks.
  14. Joined
    15 Oct '07
    Moves
    4056
    18 Sep '08 11:511 edit
    alright, the major thing that's stuffing me up right now is white's white bishop and that annoying c-pawn...
    but chances are i'm probably missing something here

    EDIT: scratch that, make it both of white's bishops
  15. In Christ
    Joined
    30 Apr '07
    Moves
    172
    18 Sep '08 12:12
    Ask yourselves these questions: What can White do before capturing? How soon can White capture? What, then, must White capture? After that, what can Black do before capturing? How soon can Black capture? And it's obvious what Black captures.
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