Problem Display
PID: 79162 (4Q3/6pK/8/4NkB1/8/8/8/8 w - - 0 1)

Aleksandrov, Vladimir Aleksandrovich

Problemist Pribuzhya, 1992

4Q3/6pK/8/4NkB1/8/8/8/8

#4

4 + 2


SOLUTION


  • SOUND
  • Keys
    • 1.Qb5!
      • 1...Ke4
        • 2.Kg6
          • 2...Kd4
            • 3.Qc4+
              • 3...Kxe5
                • 4.Bf4#
      • 1...Kxg5
        • 2.Qf1
          • 2...Kh4
            • 3.Qg2
              • threat
                • 4.Qg4#
              • 3...Kh5
                • 4.Qg4#
          • 2...Kh5
            • 3.Qf5+
              • 3...Kh4
                • 4.Qg4#
              • 3...g5
                • 4.Qh3#
                • 4.Qg4#
            • 3.Qg2
              • threat
                • 4.Qg4#
              • 3...Kh4
                • 4.Qg4#
            • 3.Qg1
              • threat
                • 4.Qg4#
              • 3...Kh4
                • 4.Qg4#
            • 3.Qf4
              • threat
                • 4.Qg4#
          • 2...g6
            • 3.Qf3
              • 3...Kh4
                • 4.Qg4#
      • 1...Ke6
        • 2.Kg6
          • 2...Kd6
            • 3.Qc4
              • 3...Kxe5
                • 4.Bf4#
      • 1...g6
        • 2.Qd5
          • 2...Kxg5
            • 3.Qf3
              • 3...Kh4
                • 4.Qg4#

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).