Problem Display
PID: 268846 (8/8/6N1/3kp3/8/2Q5/2P2K2/8 w - - 0 1)

Petrasinovic, Petrasin

HM., Sem Shakhmatnikh not, 2021

8/8/6N1/3kp3/8/2Q5/2P2K2/8

#5

4 + 2


SOLUTION


  • SOUND
  • Keys
    • 1.Qc8!
      • threat
        • 2.Ke3
          • threat
            • 3.Se7+
              • 3...Kd6
                • 4.Sf5+
                  • 4...Kd5
                    • 5.c4#
          • 2...Kd6
            • 3.c4
              • 3...e4
                • 4.Kd4
                  • 4...e3
                    • 5.c5#
          • 2...e4
            • 3.c4+
              • 3...Kd6
                • 4.Kd4
                  • 4...e3
                    • 5.c5#
      • 1...Ke4
        • 2.Qe6
          • 2...Kd4
            • 3.Qc6
              • 3...e4
                • 4.Ke2
                  • 4...e3
                    • 5.c3#
      • 1...Kd6
        • 2.Ke3
          • threat
            • 3.c4
              • 3...e4
                • 4.Kd4
                  • 4...e3
                    • 5.c5#
          • 2...Kd5
            • 3.Se7+
              • 3...Kd6
                • 4.Sf5+
                  • 4...Kd5
                    • 5.c4#
          • 2...e4
            • 3.Kd4
              • 3...e3
                • 4.c4
                  • 4...e2
                    • 5.c5#
      • 1...e4
        • 2.Ke3
          • 2...Kd6
            • 3.Kd4
              • 3...e3
                • 4.c4
                  • 4...e2
                    • 5.c5#

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).