Problem Display
PID: 269493 (8/8/1Q6/1Pp5/1pk2N2/8/8/B3K3 w - - 0 1)

Petrasinovic, Petrasin

Problem Paradise, 2019

8/8/1Q6/1Pp5/1pk2N2/8/8/B3K3

#4

5 + 3


SOLUTION


  • SOUND
  • Keys
    • 1.Sd3!
      • 1...Kb3
        • 2.Qxc5
          • 2...Ka2
            • 3.Qxb4
              • 3...Kxa1
                • 4.Qb2#
          • 2...Ka3
            • 3.Qxb4+
              • 3...Ka2
                • 4.Qb2#
      • 1...Kxd3
        • 2.Qe6
          • threat
            • 3.Qe2#
          • 2...Kc2
            • 3.Qa2+
              • 3...Kc1
                • 4.Qb2#
              • 3...Kd3
                • 4.Qe2#
      • 1...Kd5
        • 2.Se5
          • threat
            • 3.Qc6#
          • 2...Ke4
            • 3.Qf6
              • threat
                • 4.Qf3#
              • 3...Ke3
                • 4.Qf3#
              • 3...Kd5
                • 4.Qc6#
      • 1...b3
        • 2.Qxc5+
          • 2...Kxd3
            • 3.Qd4+
              • 3...Kc2
                • 4.Qd1#

FEATURES


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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).