Problem Display
PID: 150234 (8/5K2/1p3p2/1p1k4/1p1P4/1P3P2/8/6Q1 w - - 0 1)

Day, RC

The Referee, 1925

(First published on Sun Feb 15 1925)

8/5K2/1p3p2/1p1k4/1p1P4/1P3P2/8/6Q1

#3

5 + 5


15239 Valois Notebooks 2014

SOLUTION


  • SOUND
  • Tries
    • 1.Qg7?
      • 1...Kc6
        • 2.Ke6
          • 2...f5
            • 3.Qd7#
        • 2.Ke8
          • threat
            • 3.Qd7#
          • 2...Kd5
            • 3.Qd7#
          • 2...Kd6
            • 3.Qd7#
      • 1...Kd6
        • 2.Ke8
          • threat
            • 3.Qd7#
          • 2...Kd5
            • 3.Qd7#
          • 2...Kc6
            • 3.Qd7#
          • 2...Ke6
            • 3.Qd7#
      • 1...f5
        • 2.Ke8
          • threat
            • 3.Qd7#
          • 2...Kc6
            • 3.Qd7#
          • 2...Kd6
            • 3.Qd7#
          • 2...Ke6
            • 3.Qe5#
      • 1...Kxd4!
  • Keys
    • 1.Ke8!
      • 1...Kc6
        • 2.Qg7
          • threat
            • 3.Qd7#
          • 2...Kd5
            • 3.Qd7#
          • 2...Kd6
            • 3.Qd7#
      • 1...Kd6
        • 2.Qg7
          • threat
            • 3.Qd7#
          • 2...Kd5
            • 3.Qd7#
          • 2...Kc6
            • 3.Qd7#
          • 2...Ke6
            • 3.Qd7#
      • 1...Ke6
        • 2.Qg7
          • threat
            • 3.Qd7#
          • 2...Kd5
            • 3.Qd7#
          • 2...Kf5
            • 3.Qg4#
          • 2...Kd6
            • 3.Qd7#
          • 2...f5
            • 3.Qe5#
      • 1...f5
        • 2.Qg7
          • threat
            • 3.Qd7#
          • 2...Kc6
            • 3.Qd7#
          • 2...Kd6
            • 3.Qd7#
          • 2...Ke6
            • 3.Qe5#

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).