Problem Display
PID: 165156 (3N1b2/p2p1PpK/P7/3pk1Bb/2p3P1/2P2P2/1N6/Q7 w - - 0 1)

Ringeltaube, Norbert

Die Schwalbe, 1970

3N1b2/p2p1PpK/P7/3pk1Bb/2p3P1/2P2P2/1N6/Q7

#4

10 + 8


SOLUTION


  • SOUND
  • Keys
    • 1.Qa5!
      • threat
        • 2.Sxc4#
      • 1...Bg6+
        • 2.Kxg6
          • threat
            • 3.Sxc4#
          • 2...Kd6
            • 3.Bh4
              • 3...Ke5
                • 4.Bg3#
              • 3...Be7
                • 4.Bg3#
              • 3...d4
                • 4.Sxc4#
          • 2...Bc5
            • 3.Qxc5
              • 3...d6
                • 4.Sxc4#
                • 4.Qe3#
                • 4.Qd4#
      • 1...Kd6
        • 2.Sxc4+
          • 2...dxc4
            • 3.Bf4+
              • 3...Ke7
                • 4.Qg5#
      • 1...Bc5
        • 2.Sxc4+
          • 2...dxc4
            • 3.Qxc5+
              • 3...d5
                • 4.Qe7#
                • 4.Qc7#
        • 2.Qxc5
          • threat
            • 3.Sxc4#
            • 3.Qe7#
          • 2...Bg6+
            • 3.Kxg6
              • 3...d6
                • 4.Sxc4#
                • 4.Qe3#
                • 4.Qd4#
            • 3.Kxg7
              • threat
                • 4.Sxc4#
                • 4.Qe7#
            • 3.Kh8
              • threat
                • 4.Sxc4#
                • 4.Qe7#
          • 2...Bxg4
            • 3.Sxc4+
              • 3...Kf5
                • 4.Qxd5#
            • 3.Qe3+
              • 3...Kf5
                • 4.Qf4#
                • 4.f8Q#
                • 4.f8R#
              • 3...Kd6
                • 4.Bf4#
            • 3.fxg4
              • threat
                • 4.Qe7#
              • 3...Ke4
                • 4.Qe3#
              • 3...d6
                • 4.Qe3#
                • 4.Qd4#

FEATURES


NOT CLASSIFIED


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).