Problem Display
PID: 269573 (2Q5/4B1p1/3p4/3k4/8/8/1P3NP1/7K w - - 0 1)

Petrasinovic, Petrasin

Problem Paradise, 2017

2Q5/4B1p1/3p4/3k4/8/8/1P3NP1/7K

#4

6 + 3


SOLUTION


  • SOUND
  • Keys
    • 1.Kg1!
      • 1...Kd4
        • 2.Qc6
          • 2...Ke3
            • 3.Qe4+
              • 3...Kd2
                • 4.Bg5#
          • 2...g5
            • 3.Bxg5
              • 3...Ke5
                • 4.Qe4#
              • 3...d5
                • 4.Qc3#
          • 2...g6
            • 3.Bg5
              • 3...Ke5
                • 4.Qe4#
              • 3...d5
                • 4.Qc3#
      • 1...Ke5
        • 2.Qc4
          • threat
            • 3.Qe4#
          • 2...d5
            • 3.Qg4
              • threat
                • 4.Sd3#
              • 3...d4
                • 4.Qe4#
      • 1...g5
        • 2.Bf6
          • 2...g4
            • 3.b3
              • 3...g3
                • 4.Qc4#
      • 1...g6
        • 2.Bf6
          • 2...g5
            • 3.b3
              • 3...g4
                • 4.Qc4#

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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).