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  1. 28 Sep '12 11:45
    I thoroughly enjoyed the following problem. White plays first and mates black in two moves.

    David Shire
    4th prize
    Die Schwalbe 2010

    #2
  2. Standard member vivify
    rain
    28 Sep '12 12:03
    Capture black's rook, then mate with white's rook. Right?
  3. 28 Sep '12 12:25 / 1 edit
    Afraid not.
    1. bxa4? Be8!

    I think 1. Nd6 works. Threat is Nxb5#, to which the only response in Rb4 or Kb4. Unfortunately the rook occupies the kings last escape square, and Qc2# ends it all.
    If ...Kb4 2.Ne4#

    Edit: Accidentally but b3 instead of b4
  4. 28 Sep '12 12:44
    Originally posted by UndueCause
    Afraid not.
    1. bxa4? Be8!

    I think 1. Nd6 works. Threat is Nxb5#, to which the only response in Rb4 or Kb4. Unfortunately the rook occupies the kings last escape square, and Qc2# ends it all.
    If ...Kb4 2.Ne4#

    Edit: Accidentally but b3 instead of b4
    1 Nd6? is a good try, but there's one move which prevents mate!
  5. 28 Sep '12 12:51
    Originally posted by UndueCause
    I think 1. Nd6 works. Threat is Nxb5#, to which the only response in Rb4 or Kb4. Unfortunately the rook occupies the kings last escape square, and Qc2# ends it all.
    If ...Kb4 2.Ne4#
    Afraid not.
    1. Nd6? Be8!

    You're almost there though!
  6. 28 Sep '12 12:58 / 2 edits
    1. Nxd4 threats 2. Nxb4#

    Possible defenses:
    1. .. Nxd4 2. Re3#
    1. .. Rxd4 2. Qc2#
    1. .. Kxd4 2. Qb2#

    Edit: forget. It's not working.
  7. Standard member RJHinds
    The Near Genius
    28 Sep '12 19:44 / 1 edit
    Originally posted by Linden Lyons
    I thoroughly enjoyed the following problem. White plays first and mates black in two moves.

    David Shire
    4th prize
    Die Schwalbe 2010
    [fen]5B2/7B/4R3/pp1p1N1b/r2p4/1Pk5/4n3/1Q2K3 w - - 0 1[/fen]
    #2
    I would not even worry about mating in two. The obvious move is bxa4 to win. Screw mating in two.

    P.S. But NXd4 looks good too.
  8. Standard member RJHinds
    The Near Genius
    28 Sep '12 19:58 / 1 edit
    Originally posted by tvochess
    1. Nxd4 threats 2. Nxb4#

    Possible defenses:
    1. .. Nxd4 2. Re3#
    1. .. Rxd4 2. Qc2#
    1. .. Kxd4 2. Qb2#

    Edit: forget. It's not working.
    Don't forget it.

    P.S.
    1...Nxd4 2. Qd3#
  9. 29 Sep '12 13:16
    Originally posted by RJHinds
    Don't forget it.

    P.S. [hidden] 1...Nxd4 2. Qd3#[/hidden]
    Well done RJ! Here's the full solution:

    1 Ng3? (threat 2 Qc2)
    1 ... Ra1/Ra2 2 Rc6
    1 ... Bg6 2 Nxe2
    but 1 ... d3!

    1 Nd6? (threat 2 Nxb5)
    1 ... Rb4 2 Qc2
    1 ... Kb4 2 Ne4
    but 1 ... Be8!

    1 Nxd4! (threat 2 Nxb5)
    1 ... Rb4 2 Qa1
    1 ... Rxd4 2 Qc2 (2 Re3?)
    1 ... Nxd4 2 Re3 (2 Qc2?)
    1 ... Kxd4 2 Qd3
    1 ... Be8 2 Nxe2