Problem Display
PID: 133107 (4B1R1/3Pk3/P3P3/5P2/3N4/5P2/8/4K3 w - - 0 1)

Fox, H Courtney

Morning Post, 1899

4B1R1/3Pk3/P3P3/5P2/3N4/5P2/8/4K3

#3

9 + 1


1829 The Theory of Pawn Promotion 1912

SOLUTION


  • SOUND
  • Sets
    • 1...Kd8
      • 2.Sc6+
        • 2...Kc7
          • 3.d8Q#
      • 2.Bh5+
        • 2...Kc7
          • 3.d8Q#
        • 2...Ke7
          • 3.d8Q#
      • 2.Bg6+
        • 2...Kc7
          • 3.d8Q#
        • 2...Ke7
          • 3.d8Q#
      • 2.Bf7+
        • 2...Kc7
          • 3.d8Q#
        • 2...Ke7
          • 3.d8Q#
  • Tries
    • 1.Sb5?
      • 1...Kd8
        • 2.Bh5+
          • 2...Ke7
            • 3.d8Q#
            • 3.d8B#
        • 2.Bg6+
          • 2...Ke7
            • 3.d8Q#
            • 3.d8B#
        • 2.Bf7+
          • 2...Ke7
            • 3.d8Q#
            • 3.d8B#
      • 1...Kf6!
    • 1.Bh5?
      • threat
        • 2.d8Q#
      • 1...Kf6
        • 2.f4
          • 2...Ke7
            • 3.d8Q#
      • 1...Kd6!
    • 1.Bg6?
      • threat
        • 2.d8Q#
      • 1...Kf6
        • 2.f4
          • 2...Ke7
            • 3.d8Q#
      • 1...Kd6!
    • 1.Bf7?
      • threat
        • 2.d8Q#
      • 1...Kf6
        • 2.f4
          • 2...Ke7
            • 3.d8Q#
      • 1...Kd6!
    • 1.Rg6?
      • 1...Kd8
        • 2.Sc6+
          • 2...Kc7
            • 3.d8Q#
      • 1...Kf8
        • 2.d8B
          • 2...Kxe8
            • 3.Rg8#
      • 1...Kd6!
    • 1.f4?
      • 1...Kd8
        • 2.Sc6+
          • 2...Kc7
            • 3.d8Q#
        • 2.Bh5+
          • 2...Kc7
            • 3.d8Q#
          • 2...Ke7
            • 3.d8Q#
        • 2.Bg6+
          • 2...Kc7
            • 3.d8Q#
          • 2...Ke7
            • 3.d8Q#
        • 2.Bf7+
          • 2...Kc7
            • 3.d8Q#
          • 2...Ke7
            • 3.d8Q#
      • 1...Kd6!
  • Keys
    • 1.Rg4!
      • 1...Kd6
        • 2.d8Q+
          • 2...Kc5
            • 3.Sb3#
          • 2...Ke5
            • 3.Re4#
      • 1...Kf6
        • 2.d8Q+
          • 2...Ke5
            • 3.Re4#
      • 1...Kd8
        • 2.Sc6+
          • 2...Kc7
            • 3.d8Q#
      • 1...Kf8
        • 2.d8B
          • 2...Kxe8
            • 3.Rg8#

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).