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Posers and Puzzles

Posers and Puzzles

  1. Subscriber BigDoggProblem
    The Advanced Mind
    08 Mar '05 02:11 / 2 edits

    Place any piece on any empty square; then White stalemates in one move.

    Edits: tried to make the font size a bit bigger (is there a way to do this??)
  2. 08 Mar '05 12:14
    Originally posted by BigDoggProblem
    [fen]8/p7/kq6/1R1Q4/8/8/8/5K2[/fen]
    Place any piece on any empty square; then White stalemates in one move.

    Edits: tried to make the font size a bit bigger (is there a way to do this??)
    Is it just one piece that is placed? If, yes, I cannot find a solution
    And one more thing the diagram is not turned around is it?
  3. Subscriber AThousandYoung
    Proud Boys Beware
    08 Mar '05 13:10
    Originally posted by BigDoggProblem
    [fen]8/p7/kq6/1R1Q4/8/8/8/5K2[/fen]
    Place any piece on any empty square; then White stalemates in one move.

    Edits: tried to make the font size a bit bigger (is there a way to do this??)
    Not any more. There was a backdoor way to do HTML for a little bit, but Russ programmed it out.
  4. Subscriber BigDoggProblem
    The Advanced Mind
    08 Mar '05 18:54
    Originally posted by ilywrin
    Is it just one piece that is placed? If, yes, I cannot find a solution
    And one more thing the diagram is not turned around is it?
    Yes, just one piece is placed.

    However, it is necessary to read the stipulation quite literally to solve this.
  5. Donation richjohnson
    TANSTAAFL
    08 Mar '05 19:09 / 2 edits
    Rf2?
    1. ... Qxf2
    2. Kxf2 1/2-1/2
  6. Subscriber BigDoggProblem
    The Advanced Mind
    08 Mar '05 23:36
    Originally posted by richjohnson
    Rf2?
    1. ... Qxf2
    2. Kxf2 1/2-1/2
    Black does not move--only white does.
  7. 09 Mar '05 08:20
    This problem wouldn't include pieces from fairy chess would it?
  8. Subscriber AThousandYoung
    Proud Boys Beware
    09 Mar '05 12:43 / 1 edit
    Originally posted by BigDoggProblem
    Black does not move--only white does.
    If "White stalemates" does that mean that after White moves once, Black cannot move and therefore there is stalemate?

    I think it's a White Rook on d6. If White has such a Rook, and then plays 1. Qc6, Black cannot move.

    Oops that doesn't work; Black can play 1...Qxc6.
  9. 09 Mar '05 13:37
    Queen takes the pawn check the king takes queen rook takes other queen king takes rook
  10. Subscriber BigDoggProblem
    The Advanced Mind
    09 Mar '05 17:30
    Originally posted by ilywrin
    This problem wouldn't include pieces from fairy chess would it?
    Nope. But it is a 'trick' problem.
  11. Standard member Peakite
    Sais
    09 Mar '05 18:54
    Well as it is a 'trick' problem, that could make it either a knight or bishop on b6. Aside from Bxa7 or Bc5, any move should result in stalemate.

    You cannot prevent the queen from moving, short of surrounding it. And a capture cannot be made by a rook or queen without giving check. It cannot be taken without a rook or queen on a8, as the pawn could then move.

    The last king move would need to be from moving out of check by the rook (whites previous move being Rxb5+. So this means the white piece has to be a knight, a bishop would have prevented the king previously being on a5. Previous black moves prior to the final king move could come from several pieces.

    So N on b6, move anywhere possible.
  12. Donation richjohnson
    TANSTAAFL
    09 Mar '05 19:01
    Originally posted by Peakite
    Well as it is a 'trick' problem, that could make it either a knight or bishop on b6. Aside from Bxa7 or Bc5, any move should result in stalemate.

    You cannot prevent the queen from moving, short of surrounding it. And a capture cannot be made by a rook or queen without giving check. It cannot be taken without a rook or queen on a8, as the pawn could then ...[text shortened]... or to the final king move could come from several pieces.

    So N on b6, move anywhere possible.
    b6 isn't empty, so I don't think that's allowed.
  13. 09 Mar '05 20:17
    So, is this even possible?
    -The black queen can't be prevented from moving on the next turn. If you pin it to the king with a rook/queen along row 6, the queen just takes whatever piece you're using.
    -If you take the black queen, the only way to prevent PxB6 is to place a rook/queen at A8. But, if you do that, the only way to take the queen is RxB6, which is checkmate, not stalemate.

    Unless....a "careful reading" of the OP states "Place any piece on any empty square". If that includes moving one of the pieces already on the board, then move the Black Queen to D7, and QxD7 is stalemate.
  14. Standard member Peakite
    Sais
    09 Mar '05 22:41
    Originally posted by richjohnson
    b6 isn't empty, so I don't think that's allowed.
    My mistake, it does say empty square.
  15. Subscriber BigDoggProblem
    The Advanced Mind
    10 Mar '05 01:55
    Originally posted by Sbodd
    So, is this even possible?
    -The black queen can't be prevented from moving on the next turn. If you pin it to the king with a rook/queen along row 6, the queen just takes whatever piece you're using.
    -If you take the black queen, the only way to prevent PxB6 is to place a rook/queen at A8. But, if you do that, the only way to take the queen is RxB6, whi ...[text shortened]... one of the pieces already on the board, then move the Black Queen to D7, and QxD7 is stalemate.
    No, the piece to be placed is not currently on the board.