Problem Display
PID: 140026 (6R1/8/4K3/6B1/3k4/1P1B4/1P2P3/8 w - - 0 1)

Die Hamburger Schwalben

Die Schwalbe, 1966

6R1/8/4K3/6B1/3k4/1P1B4/1P2P3/8

#3

7 + 1


SOLUTION


  • SOUND
  • Tries
    • 1.Be4?
      • threat
        • 2.Rb8
          • 2...Kxe4
            • 3.Rb4#
          • 2...Kc5
            • 3.Be3#
        • 2.Rc8
          • 2...Kxe4
            • 3.Rc4#
      • 1...Kxe4
        • 2.Rc8
          • 2...Kd4
            • 3.Rc4#
      • 1...Kc5!
    • 1.Bb5?
      • threat
        • 2.Rc8
          • 2...Ke4
            • 3.Rc4#
      • 1...Ke4
        • 2.Rc8
          • 2...Kd4
            • 3.Rc4#
      • 1...Kc5!
    • 1.Ba6?
      • threat
        • 2.Rc8
          • 2...Ke4
            • 3.Rc4#
      • 1...Ke4
        • 2.Rc8
          • 2...Kd4
            • 3.Rc4#
      • 1...Kc5!
    • 1.Bh4?
      • threat
        • 2.Bf2#
      • 1...Ke3
        • 2.Be1
          • 2...Kd4
            • 3.Bf2#
          • 2...Kf4
            • 3.Bd2#
        • 2.Rg1
          • 2...Kd2
            • 3.Bg5#
          • 2...Kd4
            • 3.Bf2#
          • 2...Kf4
            • 3.Bg5#
      • 1...Kc5!
    • 1.Bf6+?
      • 1...Ke3
        • 2.Rg1
          • 2...Kd2
            • 3.Bg5#
          • 2...Kf2
            • 3.Bd4#
          • 2...Kf4
            • 3.Bg5#
      • 1...Kc5!
  • Keys
    • 1.Bd8!
      • threat
        • 2.Bb6#
      • 1...Ke3
        • 2.Rg1
          • 2...Kd2
            • 3.Bg5#
          • 2...Kf2
            • 3.Bb6#
          • 2...Kd4
            • 3.Bb6#
          • 2...Kf4
            • 3.Bg5#
      • 1...Kc5
        • 2.Rg5+
          • 2...Kb4
            • 3.Rb5#
          • 2...Kd4
            • 3.Bb6#
          • 2...Kc6
            • 3.Be4#

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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).