Problem Display
PID: 76176 (NK6/5p2/2pk1N2/5Q2/8/8/8/8 w - - 0 1)

Kozhakina, Alena Vladimirova

Mat Plus, 2007

NK6/5p2/2pk1N2/5Q2/8/8/8/8

#3

4 + 3


SOLUTION


  • SOUND
  • Tries
    • 1.Kc8?
      • threat
        • 2.Kd8
          • 2...c5
            • 3.Qd5#
      • 1...c5
        • 2.Kd8
          • threat
            • 3.Qd5#
          • 2...Kc6
            • 3.Qd7#
      • 1...Ke7!
    • 1.Sh7?
      • threat
        • 2.Sb6
          • threat
            • 3.Sc8#
          • 2...Ke7
            • 3.Qd7#
          • 2...c5
            • 3.Qf6#
      • 1...Ke7
        • 2.Kc7
          • threat
            • 3.Qe4#
            • 3.Qd7#
            • 3.Qe5#
          • 2...Ke8
            • 3.Qe4#
            • 3.Qd7#
            • 3.Qe5#
        • 2.Sb6
          • threat
            • 3.Qd7#
          • 2...Kd6
            • 3.Sc8#
          • 2...Kd8
            • 3.Qd7#
          • 2...Ke8
            • 3.Qd7#
      • 1...f6
        • 2.Sb6
          • threat
            • 3.Sc8#
          • 2...Ke7
            • 3.Qd7#
          • 2...c5
            • 3.Qxf6#
      • 1...c5!
    • 1.Sg8?
      • threat
        • 2.Sb6
          • threat
            • 3.Sc4#
            • 3.Sc8#
          • 2...c5
            • 3.Qd5#
            • 3.Qf6#
        • 2.Sc7
          • threat
            • 3.Se8#
          • 2...c5
            • 3.Qd5#
      • 1...f6
        • 2.Sb6
          • 2...c5
            • 3.Qd5#
            • 3.Qxf6#
        • 2.Sc7
          • 2...c5
            • 3.Qe6#
            • 3.Qd5#
      • 1...c5!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Sc8#
      • 1...Ke7
        • 2.Sh7
          • threat
            • 3.Qd7#
          • 2...Kd6
            • 3.Sc8#
          • 2...Kd8
            • 3.Qd7#
          • 2...Ke8
            • 3.Qd7#
      • 1...c5
        • 2.Sc8+
          • 2...Kc6
            • 3.Qd7#

FEATURES


NOT CLASSIFIED


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).