Problem Display
PID: 269788 (6b1/8/1Q1Np1Pp/3Pkp2/7P/4N1P1/8/2K5 w - - 0 1)

Petrasinovic, Petrasin

Schach, 2013

6b1/8/1Q1Np1Pp/3Pkp2/7P/4N1P1/8/2K5

#4

8 + 5


SOLUTION


  • SOUND
  • Keys
    • 1.Qc7!
      • threat
        • 2.Sdxf5+
          • 2...Ke4
            • 3.Qf4+
              • 3...Kd3
                • 4.Qc4#
      • 1...Kd4
        • 2.Kd2
          • threat
            • 3.Qc3#
          • 2...Ke5
            • 3.Sdxf5+
              • 3...Ke4
                • 4.Qf4#
              • 3...Kf6
                • 4.Qg7#
      • 1...Kf6
        • 2.Se8+
          • 2...Kxg6
            • 3.Qg7+
              • 3...Kh5
                • 4.Sf6#
      • 1...exd5
        • 2.Sdxf5+
          • 2...Ke4
            • 3.Kd2
              • threat
                • 4.Qf4#
              • 3...Kf3
                • 4.Qf4#
          • 2...Kf6
            • 3.Qg7+
              • 3...Ke6
                • 4.Qe7#
      • 1...Bf7
        • 2.Sdxf5+
          • 2...Ke4
            • 3.Qf4+
              • 3...Kd3
                • 4.Qc4#
          • 2...Kf6
            • 3.Qxf7+
              • 3...Ke5
                • 4.Qxe6#
      • 1...f4
        • 2.Sdf5+
          • 2...Ke4
            • 3.Qxf4+
              • 3...Kd3
                • 4.Qc4#

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).