Problem Display
PID: 55513 (r3k3/b2p1n2/3P1K2/4pP2/8/5Q2/1nR5/5q2 w q - 0 1)

Heyl, Peter

Die Schwalbe, 2004

r3k3/b2p1n2/3P1K2/4pP2/8/5Q2/1nR5/5q2

#4

5 + 8


SOLUTION


  • SOUND
  • Keys
    • 1.Rg2!
      • threat
        • 2.Rg8#
      • 1...Kf8
        • 2.Qxa8+
          • 2...Bb8
            • 3.Qxb8+
              • 3...Sd8
                • 4.Qxd8#
      • 1...0-0-0
        • 2.Qa8+
          • 2...Bb8
            • 3.Rc2+
              • 3...Qc4
                • 4.Qa6#
              • 3...Sc4
                • 4.Qa6#
      • 1...Qxg2
        • 2.Qxg2
          • threat
            • 3.Qg8#
          • 2...Kf8
            • 3.Qg7+
              • 3...Ke8
                • 4.Qg8#
          • 2...0-0-0
            • 3.Qa8+
              • 3...Bb8
                • 4.Qa6#
          • 2...Sg5
            • 3.Qxa8+
              • 3...Bb8
                • 4.Qxb8#
          • 2...Sh6
            • 3.Qxa8+
              • 3...Bb8
                • 4.Qxb8#
      • 1...Qg1
        • 2.Qd5
          • threat
            • 3.Qxf7+
              • 3...Kd8
                • 4.Qg8#
                • 4.Qf8#
          • 2...Kd8
            • 3.Qxa8+
              • 3...Bb8
                • 4.Qxb8#
          • 2...0-0-0
            • 3.Qa8+
              • 3...Bb8
                • 4.Qa6#
          • 2...Qxg2
            • 3.Qxf7+
              • 3...Kd8
                • 4.Qf8#
          • 2...Rc8
            • 3.Qxf7+
              • 3...Kd8
                • 4.Qg8#
                • 4.Qe7#
                • 4.Qf8#
          • 2...Sh6
            • 3.Qxa8+
              • 3...Bb8
                • 4.Qxb8#

FEATURES


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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).