Problem Display
PID: 1205 (1K3Q2/8/1N6/4k3/8/1p2Bp2/4n1P1/2n5 w - - 0 1)

Kolpakov, Viktor Sergeevich

The Problemist Supplement, 1998

1K3Q2/8/1N6/4k3/8/1p2Bp2/4n1P1/2n5

#3

5 + 5


SOLUTION


  • SOUND
  • Tries
    • 1.Qf5+?
      • 1...Kd6
        • 2.Qf6#
      • 1...Kxf5!
  • Keys
    • 1.Bg5!
      • threat
        • 2.Qc5+
          • 2...Ke4
            • 3.Qd5#
          • 2...Ke6
            • 3.Qd5#
      • 1...Kd4
        • 2.Qd6+
          • 2...Kc3
            • 3.Qd2#
          • 2...Ke4
            • 3.Qd5#
      • 1...Ke4
        • 2.Qxf3+
          • 2...Kd4
            • 3.Qe3#
          • 2...Ke5
            • 3.Qd5#
      • 1...Sd3
        • 2.Qf6+
          • 2...Ke4
            • 3.gxf3#
      • 1...Sc3
        • 2.Qf4+
          • 2...Ke6
            • 3.Qf6#
      • 1...Sd4
        • 2.Qf4+
          • 2...Ke6
            • 3.Qf6#
      • 1...Sf4
        • 2.Qxf4+
          • 2...Ke6
            • 3.Qf6#

FEATURES


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