Problem Display
PID: 74973 (3k4/7Q/8/3K4/p7/3N1p2/nn6/3b4 w - - 0 1)

Becker, Richard

Problem Online, 2006

3k4/7Q/8/3K4/p7/3N1p2/nn6/3b4

#4

3 + 6


SOLUTION


  • SOUND
  • Keys
    • 1.Kc6!
      • threat
        • 2.Qd7#
      • 1...Sb4+
        • 2.Sxb4
          • threat
            • 3.Qd7#
          • 2...Ke8
            • 3.Qg8+
              • 3...Ke7
                • 4.Sd5#
      • 1...Ke8
        • 2.Kd6
          • threat
            • 3.Qg8#
            • 3.Qe7#
          • 2...Sc4+
            • 3.Ke6
              • threat
                • 4.Qg8#
                • 4.Qe7#
                • 4.Qh8#
              • 3...Kd8
                • 4.Qd7#
              • 3...Kf8
                • 4.Qf7#
                • 4.Qh8#
          • 2...Kf8
            • 3.Qh8+
              • 3...Kf7
                • 4.Se5#

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).