Problem Display
PID: 270350 (8/K4Np1/5k2/6N1/8/8/1P6/Q7 w - - 0 1)

Fellows, Arthur G

Sunday Referee, 1931

(First published on Sun Sep 6 1931)

8/K4Np1/5k2/6N1/8/8/1P6/Q7

#3

5 + 2


15239 Valois Notebooks 2023

SOLUTION


  • SOUND
  • Tries
    • 1.Qe1?
      • threat
        • 2.Qe6#
      • 1...Kf5
        • 2.Qe4+
          • 2...Kf6
            • 3.Qe6#
      • 1...Kg6!
    • 1.Qf1+?
      • 1...Kg6
        • 2.Qh3
          • 2...Kf6
            • 3.Qe6#
      • 1...Ke7!
    • 1.Qa4?
      • threat
        • 2.Qe4
          • 2...g6
            • 3.Qe5#
      • 1...Kf5
        • 2.Qe4+
          • 2...Kf6
            • 3.Qe6#
      • 1...Kg6
        • 2.Qg4
          • 2...Kf6
            • 3.Qe6#
      • 1...Ke7
        • 2.Qd4
          • threat
            • 3.Qd8#
          • 2...Ke8
            • 3.Qd8#
          • 2...Kf8
            • 3.Qd8#
      • 1...g6!
    • 1.Qa5?
      • 1...Ke7
        • 2.Qd8#
      • 1...g6
        • 2.Qe5#
      • 1...Kg6!
    • 1.Qa6+?
      • 1...Ke7
        • 2.Qc8
          • threat
            • 3.Qd8#
          • 2...Kf6
            • 3.Qe6#
        • 2.Qd6+
          • 2...Ke8
            • 3.Qd8#
      • 1...Kf5!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qe4
          • 2...g6
            • 3.Qe5#
      • 1...Kf5
        • 2.Qe4+
          • 2...Kf6
            • 3.Qe6#
      • 1...Kg6
        • 2.Qh3
          • 2...Kf6
            • 3.Qe6#
      • 1...Ke7
        • 2.Qd5
          • threat
            • 3.Qd8#
          • 2...Kf6
            • 3.Qe6#
          • 2...Ke8
            • 3.Qd8#
          • 2...Kf8
            • 3.Qd8#
      • 1...g6
        • 2.Qa8
          • 2...Kf5
            • 3.Qf3#
          • 2...Ke7
            • 3.Qd8#
          • 2...Kg7
            • 3.Qh8#

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