Problem Display
PID: 270537 (7K/1pR5/6p1/1Q1p2p1/3kp3/8/3N4/8 w - - 0 1)

Petrasinovic, Petrasin

Schach, 2014

7K/1pR5/6p1/1Q1p2p1/3kp3/8/3N4/8

#4

4 + 6


SOLUTION


  • SOUND
  • Keys
    • 1.Qf1!
      • threat
        • 2.Sb3+
          • 2...Ke5
            • 3.Re7+
              • 3...Kd6
                • 4.Qf6#
      • 1...Ke3
        • 2.Sb3
          • threat
            • 3.Rc3#
          • 2...d4
            • 3.Rc1
              • threat
                • 4.Re1#
      • 1...Ke5
        • 2.Kg7
          • threat
            • 3.Qf6#
          • 2...Kd4
            • 3.Sb3+
              • 3...Ke3
                • 4.Rc3#
              • 3...Ke5
                • 4.Qf6#
          • 2...Kd6
            • 3.Qf7
              • threat
                • 4.Qe7#
              • 3...Ke5
                • 4.Qf6#
              • 3...d4
                • 4.Sc4#
          • 2...d4
            • 3.Sc4+
              • 3...Kd5
                • 4.Qf7#
              • 3...Ke6
                • 4.Qf7#

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).