Problem Display
PID: 271870 (8/3B4/8/Q2Nk2P/8/8/8/7K w - - 0 1)

Petrasinovic, Petrasin

Problem Paradise, 2023

8/3B4/8/Q2Nk2P/8/8/8/7K

#4

5 + 1


SOLUTION


  • SOUND
  • Keys
    • 1.Bc6!
      • threat
        • 2.Qb4
          • threat
            • 3.Qf4+
              • 3...Ke6
                • 4.Qf6#
          • 2...Kf5
            • 3.Qf4+
              • 3...Ke6
                • 4.Qf6#
          • 2...Ke6
            • 3.Qe7+
              • 3...Kf5
                • 4.Bd7#
      • 1...Kd4
        • 2.Qc3+
          • 2...Ke4
            • 3.Qe3+
              • 3...Kf5
                • 4.Bd7#
      • 1...Ke4
        • 2.Qd2
          • threat
            • 3.Qe3+
              • 3...Kf5
                • 4.Bd7#
          • 2...Ke5
            • 3.Qf4+
              • 3...Ke6
                • 4.Qf6#
          • 2...Kf5
            • 3.Qf4+
              • 3...Ke6
                • 4.Qf6#
      • 1...Kf5
        • 2.Qb4
          • threat
            • 3.Qf4+
              • 3...Ke6
                • 4.Qf6#
          • 2...Ke5
            • 3.Qf4+
              • 3...Ke6
                • 4.Qf6#
          • 2...Kg5
            • 3.Qf4+
              • 3...Kxh5
                • 4.Be8#
          • 2...Ke6
            • 3.Qe7+
              • 3...Kf5
                • 4.Bd7#
      • 1...Ke6
        • 2.Qc7
          • 2...Kf5
            • 3.Qf4+
              • 3...Ke6
                • 4.Qf6#

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).