Problem Display
PID: 36440 (4Q3/B6n/5p2/3k4/4NP2/8/n1P3K1/8 w - - 0 1)

Heathcote, Godfrey

Reading Observer, 1911

4Q3/B6n/5p2/3k4/4NP2/8/n1P3K1/8

#3

6 + 4


SOLUTION


  • SOUND
  • Tries
    • 1.Qd7+?
      • 1...Kxe4
        • 2.Kg3
          • threat
            • 3.Qe6#
            • 3.Qd3#
        • 2.Qe6+
          • 2...Kxf4
            • 3.Be3#
      • 1...Kc4!
    • 1.Qf7+?
      • 1...Kxe4
        • 2.Qe6+
          • 2...Kxf4
            • 3.Be3#
      • 1...Kc6!
    • 1.Qg8+?
      • 1...Kxe4
        • 2.Qe6+
          • 2...Kxf4
            • 3.Be3#
      • 1...Kc6!
  • Keys
    • 1.Qc8!
      • 1...Kxe4
        • 2.Qe6+
          • 2...Kxf4
            • 3.Be3#
      • 1...Sc1
        • 2.Sc3+
          • 2...Kd6
            • 3.Bc5#
      • 1...Sc3
        • 2.Sxc3+
          • 2...Kd6
            • 3.Bc5#
      • 1...Sb4
        • 2.Sc3+
          • 2...Kd6
            • 3.Bc5#
      • 1...Sg5
        • 2.Sxf6+
          • 2...Kd6
            • 3.Bc5#
            • 3.Qd7#
      • 1...Sf8
        • 2.Sxf6+
          • 2...Kd6
            • 3.Bc5#
      • 1...f5
        • 2.Qa6
          • 2...Kxe4
            • 3.Qc4#
          • 2...fxe4
            • 3.c4#
          • 2...Sc1
            • 3.Sc3#
          • 2...Sc3
            • 3.Sxc3#
          • 2...Sb4
            • 3.Sc3#
          • 2...Sg5
            • 3.Sf6#
          • 2...Sf6
            • 3.Sxf6#
          • 2...Sf8
            • 3.Sf6#

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).