Problem Display
PID: 270529 (1K4B1/8/4N3/4k1P1/3p4/1P4P1/8/1Q3N2 w - - 0 1)

Petrasinovic, Petrasin

Problem Paradise, 2019

1K4B1/8/4N3/4k1P1/3p4/1P4P1/8/1Q3N2

#3

8 + 2


SOLUTION


  • SOUND
  • Tries
    • 1.Kc7?
      • threat
        • 2.Qd3
          • 2...Kd5
            • 3.Qf5#
            • 3.Qxd4#
      • 1...Kd5
        • 2.Qf5#
      • 1...d3!
    • 1.Kc8?
      • 1...Kd5
        • 2.Qf5+
          • 2...Kc6
            • 3.Qc5#
          • 2...Kd6
            • 3.Qc5#
      • 1...Kd6
        • 2.Qf5
          • threat
            • 3.Qc5#
          • 2...Kc6
            • 3.Qc5#
          • 2...Ke7
            • 3.Qf8#
      • 1...d3!
    • 1.Qc2?
      • 1...Kd6
        • 2.Qc7+
          • 2...Kd5
            • 3.Sc5#
      • 1...d3
        • 2.Qc5+
          • 2...Ke4
            • 3.Sd2#
      • 1...Kd5!
    • 1.Qf5+?
      • 1...Kd6
        • 2.Kc8
          • threat
            • 3.Qc5#
          • 2...Kc6
            • 3.Qc5#
          • 2...Ke7
            • 3.Qf8#
      • 1...Kxf5!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Sxd4
          • threat
            • 3.Qf4#
          • 2...Kxd4
            • 3.Qe3#
          • 2...Ke4
            • 3.Qe3#
          • 2...Kd6
            • 3.Qc7#
      • 1...Ke4
        • 2.Sxd4
          • threat
            • 3.Qe3#
          • 2...Kd3
            • 3.Qe3#
          • 2...Kxd4
            • 3.Qe3#
          • 2...Ke5
            • 3.Qf4#
      • 1...Kd5
        • 2.Sxd4+
          • 2...Kxd4
            • 3.Qe3#
          • 2...Ke4
            • 3.Qe3#
          • 2...Ke5
            • 3.Qf4#
          • 2...Kd6
            • 3.Qc7#
      • 1...Kf5
        • 2.Qf4+
          • 2...Kg6
            • 3.Qf7#
      • 1...Kd6
        • 2.Qc7+
          • 2...Kd5
            • 3.Sc5#
      • 1...d3
        • 2.Qc5+
          • 2...Ke4
            • 3.Sd2#

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).