Problem Display
PID: 210449 (8/3B4/7K/3k2p1/8/3N4/8/3Q4 w - - 0 1)

Anonymous

The Westminster Papers, 1872

8/3B4/7K/3k2p1/8/3N4/8/3Q4

#4

4 + 2


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Qa4!
      • threat
        • 2.Bg4
          • 2...Kd6
            • 3.Qd7#
      • 1...Kd6
        • 2.Bg4
          • threat
            • 3.Qd7#
          • 2...Kd5
            • 3.Kxg5
              • 3...Kd6
                • 4.Qd7#
            • 3.Kh5
              • 3...Kd6
                • 4.Qd7#
            • 3.Kg6
              • 3...Kd6
                • 4.Qd7#
            • 3.Kg7
              • 3...Kd6
                • 4.Qd7#
            • 3.Kh7
              • 3...Kd6
                • 4.Qd7#
          • 2...Kc7
            • 3.Qb5
              • 3...Kd6
                • 4.Qd7#
                • 4.Qc5#
              • 3...Kd8
                • 4.Qd7#
          • 2...Ke7
            • 3.Kg7
              • threat
                • 4.Qd7#
              • 3...Kd6
                • 4.Qd7#
              • 3...Kd8
                • 4.Qd7#

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).