Problem Display
PID: 203703 (8/2Q5/7N/3k4/5P2/8/5P2/K7 w - - 0 1)

Labrinakos, Petros

The Problemist Supplement, 2019

8/2Q5/7N/3k4/5P2/8/5P2/K7

#4

5 + 1


SOLUTION


  • SOUND
  • Keys
    • 1.Sg4!
      • threat
        • 2.Se5
          • threat
            • 3.Qc6+
              • 3...Kd4
                • 4.Qc4#
          • 2...Ke4
            • 3.Qf7
              • 3...Kd4
                • 4.Qc4#
          • 2...Ke6
            • 3.Qd7+
              • 3...Kf6
                • 4.Qf7#
      • 1...Kd4
        • 2.Se5
          • threat
            • 3.Qc4#
          • 2...Ke4
            • 3.Qf7
              • 3...Kd4
                • 4.Qc4#
          • 2...Kd5
            • 3.Qc6+
              • 3...Kd4
                • 4.Qc4#
      • 1...Ke4
        • 2.Se3
          • 2...Kd3
            • 3.Qc2+
              • 3...Kd4
                • 4.Qc4#
          • 2...Kf3
            • 3.Qc2
              • 3...Kxf4
                • 4.Qf5#
      • 1...Ke6
        • 2.Se5
          • threat
            • 3.Qd7+
              • 3...Kf6
                • 4.Qf7#
          • 2...Kd5
            • 3.Qc6+
              • 3...Kd4
                • 4.Qc4#
          • 2...Kf5
            • 3.Qc4
              • 3...Kf6
                • 4.Qf7#

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).