Problem Display
PID: 173956 (8/1p1QN3/1P2p1B1/3pk3/8/6p1/6P1/5K2 w - - 0 1)

Petrasinovic, Petrasin

Sachmatija, 2013

8/1p1QN3/1P2p1B1/3pk3/8/6p1/6P1/5K2

#4

6 + 5


SOLUTION


  • SOUND
  • Keys
    • 1.Bb1!
      • 1...Kd4
        • 2.Qc7
          • threat
            • 3.Ke1
              • 3...Ke3
                • 4.Qe5#
              • 3...e5
                • 4.Sf5#
            • 3.Ke2
              • 3...e5
                • 4.Sf5#
          • 2...Ke3
            • 3.Qe5+
              • 3...Kd2
                • 4.Qe1#
      • 1...Kf4
        • 2.Qxe6
          • 2...Kg5
            • 3.Qf5+
              • 3...Kh4
                • 4.Sg6#
              • 3...Kh6
                • 4.Qg6#
          • 2...d4
            • 3.Qf5+
              • 3...Ke3
                • 4.Qg5#
      • 1...Kf6
        • 2.Sg6
          • threat
            • 3.Qe7#
          • 2...Kg5
            • 3.Qh7
              • threat
                • 4.Qh4#
              • 3...Kg4
                • 4.Qh4#
              • 3...Kf6
                • 4.Qe7#

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).