Problem Display
PID: 147607 (8/b3n3/Q1qp4/1bp2p2/4p2N/1p5p/5B1p/RB1NK2k w Q - 0 1)

Melnichenko, Viktor Oleksandrovich

Canadian Chess Chat, 1984

8/b3n3/Q1qp4/1bp2p2/4p2N/1p5p/5B1p/RB1NK2k

#4

7 + 12


SOLUTION


  • SOUND
  • Keys
    • 1.Be3!
      • threat
        • 2.Sf2+
          • 2...Kg1
            • 3.Sxe4+
              • 3...Kh1
                • 4.Sg3#
      • 1...Sd5
        • 2.Bxe4+
          • 2...fxe4
            • 3.Kd2
              • threat
                • 4.Sf2#
              • 3...Bf1
                • 4.Qxf1#
      • 1...c4
        • 2.Bxe4+
          • 2...Qxe4
            • 3.Sf2+
              • 3...Kg1
                • 4.0-0-0#
          • 2...fxe4
            • 3.Sf2+
              • 3...Kg1
                • 4.Kd2#
                • 4.Ke2#
                • 4.0-0-0#
      • 1...f4
        • 2.Qxb5
          • threat
            • 3.Qf1#
          • 2...Qxb5
            • 3.Bxe4+
              • 3...f3
                • 4.Bxf3#
          • 2...Qa6
            • 3.Bxe4+
              • 3...f3
                • 4.Bxf3#
          • 2...c4
            • 3.Sf2+
              • 3...Kg1
                • 4.Qg5#

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).