Problem Display
PID: 269522 (8/8/4pP2/4kp1Q/1B6/8/5N2/4K3 w - - 0 1)

Petrasinovic, Petrasin

4th HM., Problemist Ukraini, 2020

8/8/4pP2/4kp1Q/1B6/8/5N2/4K3

#4

5 + 3


SOLUTION


  • SOUND
  • Keys
    • 1.Bf8!
      • 1...Kd4
        • 2.Qf3
          • threat
            • 3.Bd6
              • threat
                • 4.Qd3#
              • 3...Kc4
                • 4.Qd3#
          • 2...Ke5
            • 3.Qc3+
              • 3...Kf4
                • 4.Bh6#
              • 3...Kd5
                • 4.Qc5#
      • 1...Kf4
        • 2.Qh3
          • 2...Ke5
            • 3.Qc3+
              • 3...Kf4
                • 4.Bh6#
              • 3...Kd5
                • 4.Qc5#
      • 1...Kd5
        • 2.Qf3+
          • 2...Kd4
            • 3.Bd6
              • threat
                • 4.Qd3#
              • 3...Kc4
                • 4.Qd3#
          • 2...Ke5
            • 3.Qc3+
              • 3...Kf4
                • 4.Bh6#
              • 3...Kd5
                • 4.Qc5#
      • 1...Kxf6
        • 2.Qh8+
          • 2...Kg6
            • 3.Qg7+
              • 3...Kh5
                • 4.Qh6#
          • 2...Kf7
            • 3.Qg7+
              • 3...Ke8
                • 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).