Posers and Puzzles

Posers and Puzzles

  1. Buenos Aires
    Joined
    13 Mar '03
    Moves
    7218
    05 Apr '06 04:35
    (this puzzle was taken from an old adventure game)

    Prenises:
    You are playing on a 4x4 chessboard.
    So, columns are a, b, c, d.
    Ranks are 1, 2 , 3, 4.
    There are in the initial position 2 white Knights on b1, c1, and
    2 black knights on b4, c4.
    You must interchange the Knights positions (that is, the final position should be
    2 white Knights at b4, c4, and 2 black Knights at b1. c1).

    Condition:
    During the moves, no piece can be subject to being captured.

    White to move.

    And a honest advice: This can't be solved in less than 64 moves!
    But don't be afraid! Try to solve it!
  2. Standard memberPBE6
    Bananarama
    False berry
    Joined
    14 Feb '04
    Moves
    28719
    05 Apr '06 20:09
    I got it in 8 moves (16 jumps):

    1. Nb3 Nb2
    2. Nc3 Nc2
    3. Nd2 Nd3
    4. Nc4 Nc1
    5. Nb1 Nb4
    6. Nba3 Nba2
    7. Nc2 Nc3
    8. Nb4 Nb1
  3. Buenos Aires
    Joined
    13 Mar '03
    Moves
    7218
    05 Apr '06 23:011 edit
    Originally posted by PBE6
    I got it in 8 moves (16 jumps):

    1. Nb3 Nb2
    2. Nc3 Nc2
    3. Nd2 Nd3
    4. Nc4 Nc1
    5. Nb1 Nb4
    6. Nba3 Nba2
    7. Nc2 Nc3
    8. Nb4 Nb1
    Fine! My congrats, PBE6!
    Clean solution.

    My apologies for my posting, 'cos my memory failed miserably 😳

    The puzzle I intended to post was very similar.
    The corrections:

    Board size: 5x5.
    Columns: a, b, c, d, e.
    Raws: 1 to 5.

    Initial position of the white knights: b1, d1.
    Initial position of the black knights: b5. d5.

    Same objective.

    P.S.: I'm going to rec your solution, PBE6. It is clean, methodic, short and elegant!
  4. Joined
    09 Mar '06
    Moves
    415
    06 Apr '06 10:00
    It's also insanely obvious.....
  5. Standard memberXanthosNZ
    Cancerous Bus Crash
    p^2.sin(phi)
    Joined
    06 Sep '04
    Moves
    25076
    06 Apr '06 10:11
    Originally posted by LittleBear
    Fine! My congrats, PBE6!
    Clean solution.

    My apologies for my posting, 'cos my memory failed miserably 😳

    The puzzle I intended to post was very similar.
    The corrections:

    Board size: 5x5.
    Columns: a, b, c, d, e.
    Raws: 1 to 5.

    Initial position of the white knights: b1, d1.
    Initial position of the black knights: b5. d5.

    Same objective.

    P.S.: I'm going to rec your solution, PBE6. It is clean, methodic, short and elegant!
    Starting Position:

    Moves:
    1. Nd2 Nd4 2. Nc4 Nb4 3. Nc3 Nd3 4. Nd5 Nb3 5. Na3 Nd2 6. Nb5
    Nb2 7. Nd4 Nd1 8. Nb5 Nb1
  6. Joined
    07 Dec '05
    Moves
    3685
    06 Apr '06 19:49
    Originally posted by LittleBear
    Fine! My congrats, PBE6!
    Clean solution.

    My apologies for my posting, 'cos my memory failed miserably 😳

    The puzzle I intended to post was very similar.
    The corrections:

    Board size: 5x5.
    Columns: a, b, c, d, e.
    Raws: 1 to 5.

    Initial position of the white knights: b1, d1.
    Initial position of the black knights: b5. d5.

    Same objective.

    P.S.: I'm going to rec your solution, PBE6. It is clean, methodic, short and elegant!
    I believe I have it in 6.

    1. Nd2, Na3
    2. Nb3, Nb1
    3. Nd4, Nb4
    4. Nb5, Nd3
    5. Ne3, Nb2
    6. Nd5, Nd1
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