Problem Display
PID: 180825 (4bk2/4pn2/4R1K1/8/8/5Q2/8/8 w - - 0 1)

Abdullayev, Elmar

Sachmatija, 2017

4bk2/4pn2/4R1K1/8/8/5Q2/8/8

#4

3 + 4


SOLUTION


  • SOUND
  • Keys
    • 1.Rf6!
      • threat
        • 2.Rxf7+
          • 2...Kg8
            • 3.Qa8
              • threat
                • 4.Qxe8#
              • 3...Kh8
                • 4.Qxe8#
      • 1...Kg8
        • 2.Rxf7
          • threat
            • 3.Qa8
              • threat
                • 4.Qxe8#
              • 3...Kh8
                • 4.Qxe8#
          • 2...Bxf7+
            • 3.Qxf7+
              • 3...Kh8
                • 4.Qe8#
                • 4.Qg7#
                • 4.Qh7#
                • 4.Qf8#
          • 2...Kh8
            • 3.Qh1+
              • 3...Kg8
                • 4.Qh7#
            • 3.Qh5+
              • 3...Kg8
                • 4.Qh7#
            • 3.Qh3+
              • 3...Kg8
                • 4.Qh7#
            • 3.Qa8
              • threat
                • 4.Qxe8#
              • 3...Kg8
                • 4.Qxe8#
      • 1...Ba4
        • 2.Qa8+
          • 2...Be8
            • 3.Rxf7+
              • 3...Kg8
                • 4.Qxe8#
      • 1...Bb5
        • 2.Qa8+
          • 2...Be8
            • 3.Rxf7+
              • 3...Kg8
                • 4.Qxe8#
      • 1...Bc6
        • 2.Rxf7+
          • 2...Ke8
            • 3.Qxc6+
              • 3...Kd8
                • 4.Rf8#

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).