Problem Display
PID: 177500 (4K3/8/3Q4/B7/3pk1N1/8/4N3/8 w - - 0 1)

Petrasinovic, Petrasin

Best Problems, 2018

4K3/8/3Q4/B7/3pk1N1/8/4N3/8

#3

5 + 2


SOLUTION


  • SOUND
  • Tries
    • 1.Se5?
      • threat
        • 2.Bd2
          • threat
            • 3.Sg3#
          • 2...Kf5
            • 3.Sg3#
      • 1...Ke3
        • 2.Qd5
          • threat
            • 3.Qf3#
          • 2...Kxe2
            • 3.Qf3#
          • 2...Kf2
            • 3.Qf3#
        • 2.Qc6
          • threat
            • 3.Qf3#
          • 2...Kxe2
            • 3.Qf3#
          • 2...Kf2
            • 3.Qf3#
      • 1...Kf5
        • 2.Bd2
          • threat
            • 3.Sg3#
          • 2...Ke4
            • 3.Sg3#
      • 1...d3!
    • 1.Qc6+?
      • 1...Kd3
        • 2.Sc1#
        • 2.Sf4#
      • 1...Kf5!
    • 1.Qe6+?
      • 1...Kd3
        • 2.Sf2+
          • 2...Kc2
            • 3.Qa2#
      • 1...Kf3!
  • Keys
    • 1.Sh2!
      • 1...Kd3
        • 2.Qc6
          • 2...Kxe2
            • 3.Qf3#
          • 2...Ke3
            • 3.Qf3#
      • 1...Ke3
        • 2.Qxd4+
          • 2...Kxe2
            • 3.Qd2#
      • 1...Kf5
        • 2.Sg3+
          • 2...Kg5
            • 3.Bd8#

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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).