Problem Display
PID: 60078 (8/1N6/3b1p2/3k3p/1p6/1p1K1ppQ/8/8 w - - 0 1)

Lukyanov, Viktor Yurevich

Die Schwalbe, 2005

8/1N6/3b1p2/3k3p/1p6/1p1K1ppQ/8/8

#4

3 + 8


SOLUTION


  • SOUND
  • Keys
    • 1.Sd8!
      • threat
        • 2.Qf5+
          • 2...Be5
            • 3.Qe6+
              • 3...Kc5
                • 4.Qc6#
      • 1...Kc5
        • 2.Qd7
          • threat
            • 3.Qc6#
          • 2...Kd5
            • 3.Qc6+
              • 3...Ke5
                • 4.Qe4#
            • 3.Qb7+
              • 3...Kc5
                • 4.Se6#
                • 4.Qc6#
              • 3...Ke5
                • 4.Qe4#
          • 2...Kb6
            • 3.Qc6+
              • 3...Ka5
                • 4.Sb7#
              • 3...Ka7
                • 4.Qb7#
      • 1...Ke5
        • 2.Qe6+
          • 2...Kf4
            • 3.Qe4+
              • 3...Kg5
                • 4.Sf7#
      • 1...f5
        • 2.Qxf5+
          • 2...Be5
            • 3.Qe6+
              • 3...Kc5
                • 4.Qc6#

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).