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4/6/2013 - White to Draw


  • 20 months ago · Quote · #341

    KilgoreBass

    PIRATCH wrote:

    No, I'm not joking! "Man" simply does not equal "pieces"!

    Source: John Nunn: Rook endings, Batsford 1999.
    At the moment I cannot quote from it because I'm reorganizing my chess books and it's in a box with other boxes over this box. Too much work to reach it!  

    Piratch:

    I tablebase lingo, X-man, X-men, or X-piece, implies the total number left on the board, including the kings and pawns (if any pawns are left).  The description might be a bit of misnomer, I agree, but that's what  people call it.

    http://www.shredderchess.com/online-chess/online-databases/endgame-database.html

    https://plus.google.com/100454521496393505718/posts

  • 20 months ago · Quote · #342

    PIRATCH

    First I thought they changed it. But I found even in Ken Thompson (who first programed TPE) wrote about 5-Man-ending.

    http://www.gadycosteff.com/eg/eg83.pdf

    Maybe it's really too confusing for people to leave out kings for counting the remaining material for endings ... (I really read about it and I still think it was in one of Nunn's endings books ... Nunn there also has his own convention - ! for only move for a win ...) Wink

  • 20 months ago · Quote · #343

    KilgoreBass

    Yep, It probably came about due to the description of a tablebase position, for example, KRPKR, so it makes some sense for those who make tablebase algorithms to count up all the "letters" in that as 5-"man".  

  • 20 months ago · Quote · #344

    p-wnattack

    SuperSeal wrote:

    How is this a draw?  Black clearly wins with 2 passed pawns

    two passed rook pawns its a draw the king goes to the corner blacks bishop can't control then he sacks his bishop for the h pawn the resulting endgame is a theoretical draw

  • 20 months ago · Quote · #345

    aokHarold

    settle for a draw ? BS White can win !!!

  • 20 months ago · Quote · #346

    EricFleet

    aokHarold wrote:

    settle for a draw ? BS White can win !!!

    Show me your lines...

  • 20 months ago · Quote · #347

    EricFleet

    p-wnattack wrote:
    SuperSeal wrote:

    How is this a draw?  Black clearly wins with 2 passed pawns

    two passed rook pawns its a draw the king goes to the corner blacks bishop can't control then he sacks his bishop for the h pawn the resulting endgame is a theoretical draw

    You may want to read the rest of the thread. I put it into an endgame tablebase generator and let it run for a day and it determined it to be a forced win.

  • 20 months ago · Quote · #348

    p-wnattack

    EricFleet wrote:
    p-wnattack wrote:
    SuperSeal wrote:

    How is this a draw?  Black clearly wins with 2 passed pawns

    two passed rook pawns its a draw the king goes to the corner blacks bishop can't control then he sacks his bishop for the h pawn the resulting endgame is a theoretical draw

    You may want to read the rest of the thread. I put it into an endgame tablebase generator and let it run for a day and it determined it to be a forced win.

    i guess it won for black the puzzle gave the wrong move for black though and black can avoid avoid the theoretical draw with kc7 rather than grabbing the pawn

  • 20 months ago · Quote · #349

    Ocky

    ?

  • 19 months ago · Quote · #350

    JamesBoundage

    [COMMENT DELETED]
  • 16 months ago · Quote · #351

    yelfimov

    waste of pieces


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