Posers and Puzzles

Posers and Puzzles

  1. Joined
    25 Aug '06
    Moves
    0
    12 Dec '06 16:481 edit


    Mate in 2.

    Here, white has a mate ready for every possible black move:
    1...Kc5 2.Bxe3#; 1...Ke5 2.d4#; 1...B~ 2.Bf6#. Unfortunately, white does not have a neutral "waiting move": every possible key move spoils at least one of the variations. So after the key move some black moves must be provided new mates. Or not so new...
  2. Sigulda, Latvia
    Joined
    30 Aug '06
    Moves
    4048
    12 Dec '06 17:18
    Originally posted by David113
    [fen]4N3/4R2p/4P2P/1P3bBR/p2kP3/PpNPp3/1P2B3/3QK3[/fen]

    Mate in 2.

    Here, white has a mate ready for every possible black move:
    1...Kc5 2.Bxe3#; 1...Ke5 2.d4#; 1...B~ 2.Bf6#. Unfortunately, white does not have a neutral "waiting move": every possible key move spoils at least one of the variations. So after the key move some black moves must be provided new mates. Or not so new...
    I'd go 1. e5. Can't see a refutation for that.
  3. Joined
    25 Aug '06
    Moves
    0
    12 Dec '06 17:47
    Wrong answer... 🙁
  4. SubscriberBigDoggProblem
    Court Jester
    lacking discretion
    Joined
    26 Nov '04
    Moves
    124059
    12 Dec '06 17:47
    Originally posted by kbaumen
    I'd go 1. e5. Can't see a refutation for that.
    1.e5? Be4 and White can't cover c5, d4, and e5 with one check.

    1.Nd5! (zugzwang)
    1...Kc5 2.d4#
    1...Ke5 2.Bf6#
    1...B~ 2.Bxe3#
  5. Joined
    25 Aug '06
    Moves
    0
    12 Dec '06 17:49
    See? the same mates as in the set play, but cyclically shifted... 😀
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