1. Joined
    29 Feb '04
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    22
    12 Jul '05 18:201 edit
    Originally posted by jebry
    Found a 5 mover and it can't get any shorter than that:

    1. d5 c5
    2. cd Qb6
    3. c6 Qb2
    4. cb Qa1
    5. bc=Q++

    Jeff
    I agree with your 15-ply solution. Well done. 😲

    However, your 9-ply solution can be improved. 😛
  2. Joined
    29 Apr '05
    Moves
    827
    12 Jul '05 21:37
    What's wrong with the 9-ply solution?
    White needs 5 moves to promote the pawn.
    If he wants to checkmate with the pawn from 7th rank (it would be only 4 moves then) it has to be done from a square that is covered by one of White's pieces. I see Qd1 covering d7. Therefore White's gotta move the d-pawn. But I dont see how that can be mate in 4 moves. Same with the pawns and rooks on a- and h-file. It would take 4 moves to checkmate with gxh7 or bxa7. But how to get the Black king into position that fast?
  3. Joined
    29 Feb '04
    Moves
    22
    12 Jul '05 22:101 edit
    Originally posted by crazyblue
    What's wrong with the 9-ply solution?
    White needs 5 moves to promote the pawn.
    If he wants to checkmate with the pawn from 7th rank (it would be only 4 moves then) it has to be done from a square that is covered by one of White's piec ...[text shortened]... or bxa7. But how to get the Black king into position that fast?
    Originally posted by crazyblue
    What's wrong with the 9-ply solution?

    It's too long.

    Originally posted by crazyblue
    White needs 5 moves to promote the pawn.

    Lose the pawn, so to speak. 🙂
  4. Standard memberBowmann
    Non-Subscriber
    RHP IQ
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    17 Mar '05
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    1345
    12 Jul '05 22:41
    Originally posted by THUDandBLUNDER
    Ah yes!

    Here is your latest offering (dated April 17, almost 3 months ago), something that even bobbob1056th himself would no doubt be proud of:

    If you're at a loose end one evening and wish to pass some time, set up a chessboard and simply do the following, either alone or with the aid of a friend:

    Play just 3 moves into a game (each si ...[text shortened]...


    Although it does not resemble a puzzle, it certainly invokes a few question marks!

    Nothing wrong with it. It can also make people think about how the possibilities in chess explode very quickly at the start of a game.
  5. Standard memberBigDogg
    Secret RHP coder
    on the payroll
    Joined
    26 Nov '04
    Moves
    155080
    13 Jul '05 03:38
    Originally posted by THUDandBLUNDER
    Originally posted by crazyblue
    [b]What's wrong with the 9-ply solution?


    It's too long.

    Originally posted by crazyblue
    White needs 5 moves to promote the pawn.

    Lose the pawn, so to speak. 🙂[/b]
    Too long, but not by much!

    1.f3 e5 2.Kf2 h5 3.Kg3 h4+ 4.Kg4 d5#


  6. Joined
    29 Apr '05
    Moves
    827
    13 Jul '05 08:22
    Ahh, just tell me White "gets" mated and I save 20 mins of my lifetime by not analyzing all possible White mates. 🙄

    But you are right, in the question it didnt say that it's White who checkmates, I just assumed it.
  7. Joined
    29 Feb '04
    Moves
    22
    13 Jul '05 13:591 edit
    Originally posted by BigDoggProblem


    1.f3 e5 2.Kf2 h5 3.Kg3 h4+ 4.Kg4 d5#

    Correct, although 4...d6# is slightly quicker. 😵
  8. Joined
    07 Jul '04
    Moves
    102838
    13 Jul '05 16:02
    Ah!

    Move the king out! I never considered that because I assumed that it would be impossible to trap the king on the open board that quickly! Obviously, I was wrong!

    Excellent solution!
    Jeff
  9. Standard memberBowmann
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    17 Mar '05
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    13 Jul '05 23:42
    http://www.redhotpawn.com/board/showthread.php?threadid=23346
  10. Standard memberBigDogg
    Secret RHP coder
    on the payroll
    Joined
    26 Nov '04
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    155080
    14 Jul '05 00:24
    Originally posted by Bowmann
    http://www.redhotpawn.com/board/showthread.php?threadid=23346
    LOL, that's funny. I forgot that this one had been posted before, and forgot the solution, too!
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