Problem Display
PID: 180023 (kb1n4/3Q3K/pB1p3p/n1N5/r7/8/8/8 w - - 0 1)

Fossum, Andre Ferdinand

1st Prize, All Round Ty., 1963

kb1n4/3Q3K/pB1p3p/n1N5/r7/8/8/8

#3

4 + 8


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Ba7
      • 2.Qxa7#
  • Keys
    • 1.Qc8!
      • threat
        • 2.Sxa6
          • threat
            • 3.Sc7#
            • 3.Qxb8#
        • 2.Qxa6+
          • 2...Ba7
            • 3.Qxa7#
      • 1...dxc5
        • 2.Qxa6+
          • 2...Ba7
            • 3.Qxa7#
      • 1...Rb4
        • 2.Qxa6+
          • 2...Ba7
            • 3.Qxa7#
      • 1...Rc4
        • 2.Qxa6+
          • 2...Ba7
            • 3.Qxa7#
      • 1...Re4
        • 2.Qxa6+
          • 2...Ba7
            • 3.Qxa7#
      • 1...Rf4
        • 2.Qxa6+
          • 2...Ba7
            • 3.Qxa7#
      • 1...Rg4
        • 2.Qxa6+
          • 2...Ba7
            • 3.Qxa7#
      • 1...Sb3
        • 2.Sd7
          • threat
            • 3.Qxb8#
          • 2...Sc6
            • 3.Qxc6#
      • 1...Sc4
        • 2.Sd7
          • threat
            • 3.Qxb8#
          • 2...Sc6
            • 3.Qxc6#
      • 1...Sac6
        • 2.Se6
          • threat
            • 3.Sc7#
          • 2...Sxe6
            • 3.Qxc6#
      • 1...Sab7
        • 2.Bc7
          • threat
            • 3.Qxb8#
          • 2...Ka7
            • 3.Qxb8#
          • 2...Sc6
            • 3.Qxb7#
      • 1...Sdc6
        • 2.Sxa6
          • threat
            • 3.Sc7#
        • 2.Se6
          • threat
            • 3.Sc7#
      • 1...Se6
        • 2.Qxa6+
          • 2...Ba7
            • 3.Qxa7#
      • 1...Sdb7
        • 2.Sxa6
          • threat
            • 3.Sc7#
            • 3.Qxb8#
        • 2.Bc7
          • threat
            • 3.Qxb8#
          • 2...Ka7
            • 3.Qxb8#
          • 2...Sc6
            • 3.Qxb7#
      • 1...Sf7
        • 2.Qxa6+
          • 2...Ba7
            • 3.Qxa7#

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).