Posers and Puzzles

Posers and Puzzles

  1. Joined
    25 Aug '06
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    0
    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 memberSwissGambit
    Caninus Interruptus
    2014.05.01
    Joined
    11 Apr '07
    Moves
    92274
    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. Joined
    25 Aug '06
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    21 May '08 17:521 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. Joined
    25 Apr '06
    Moves
    5939
    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 memberSwissGambit
    Caninus Interruptus
    2014.05.01
    Joined
    11 Apr '07
    Moves
    92274
    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. Joined
    25 Aug '06
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    0
    21 May '08 22:382 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. In Christ
    Joined
    30 Apr '07
    Moves
    172
    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. Joined
    25 Apr '06
    Moves
    5939
    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.
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