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Posers and Puzzles

Posers and Puzzles

  1. 21 May '08 00:39


    You have two problems to solve here.

    a. In the given position WHITE starts, the players cooperate, White's 4th move is mate.
    b. In the given position BLACK starts, the players cooperate, White's 4th move is mate.
  2. Standard member SwissGambit
    Caninus Interruptus
    21 May '08 16:58
    Originally posted by David113
    [fen]8/4p3/3pP3/3P2p1/3PR1P1/3P1pb1/2P2p2/5k1K b[/fen]

    You have two problems to solve here.

    a. In the given position WHITE starts, the players cooperate, White's 4th move is mate.
    b. In the given position BLACK starts, the players cooperate, White's 4th move is mate.
    1...Rf4 2.Ke2 Rf5 3.Ke3 Re5+ 4.Kf4 Re4
    1.Bf4 Re5 2.Bd2 Rf5 3.Ke2 Rf4 4.Ke3 Re4

    wR rundlauf both clockwise and counter-clockwise. Nice.
  3. 21 May '08 17:52 / 1 edit
    Originally posted by SwissGambit
    1...Rf4 2.Ke2 Rf5 3.Ke3 Re5+ 4.Kf4 Re4
    1.Bf4 Re5 2.Bd2 Rf5 3.Ke2 Rf4 4.Ke3 Re4

    wR rundlauf both clockwise and counter-clockwise. Nice.
    SOLV'D (crazyblue, heinzkat, SwissGambit)

    and both rundlaufs are without captures!
  4. 21 May '08 18:10
    The only 'Rundlauf' or ... switchback (?) I knew is this one:

    Theodor Nissl 1910



    White to move, mate in six.

    Any more examples? I like the theme.
  5. Standard member SwissGambit
    Caninus Interruptus
    21 May '08 18:36
    Originally posted by heinzkat
    The only 'Rundlauf' or ... switchback (?) I knew is this one:

    Theodor Nissl 1910

    [fen]8/KR6/8/k5B1/3r2b1/1P6/8/8 w[/fen]

    White to move, mate in six.

    Any more examples? I like the theme.
    1.Bh4 Rd1 2.Bg3 Rc1 3.Bf4 Rc2 4.Bg5! R~ 5.Bd8 or Bd2+ mates.

    The main difference between a rundlauf and a switchback is that a rundlauf requires a piece to visit at least two 'other' squares before returning to the original square. If it only visits one 'other' square, it's a switchback.
  6. 21 May '08 22:38 / 2 edits
    Originally posted by heinzkat
    The only 'Rundlauf' or ... switchback (?) I knew is this one:

    Theodor Nissl 1910

    [fen]8/KR6/8/k5B1/3r2b1/1P6/8/8[/fen]

    White to move, mate in six.

    Any more examples? I like the theme.
    Here are a few Mate-in-4-miniature-rundlaufs for you.

    Ralf Kraetschmer
    White: Ka4, Rc7, Bb5, Nd7; Black: Ka8, Na7, Ne3.

    M. Havel
    White: Ka1, Rb6, Nb1; Black: Ka4, Pa6.

    C. G. S. Narayanan
    White: Kg3, Qh1; Black: Kg5, Pf6, Pg4, Pg6.

    And one final rundlauf dedicated to SwissGambit

    Itamar Faybish / Göran Wicklund / François Labelle & Alexandre Leroux

    Proof game in 13.5 moves.
  7. 21 May '08 23:01
    I solved it as well, but when I got back online to send you the message, the solution was already posted. Oh well.
  8. 21 May '08 23:02
    Originally posted by David113
    Here are a few Mate-in-4-miniature-rundlaufs for you.

    Ralf Kraetschmer
    White: Ka4, Rc7, Bb5, Nd7; Black: Ka8, Na7, Ne3.

    M. Havel
    White: Ka1, b6, Nb1; Black: Ka4, Pa6.

    C. G. S. Narayanan
    White: Kg3, Qh1; Black: Kg5, Pf6, Pg4, Pg6.
    Thank you.