Problem Display
PID: 33861 (6b1/1Q6/8/1np5/prkp4/pr1p4/B2K4/1N6 w - - 0 1)

Zhukovin, Konstantin

1st Prize, Problem (Zagreb), 1967

6b1/1Q6/8/1np5/prkp4/pr1p4/B2K4/1N6

#4

4 + 10


SOLUTION


  • SOUND
  • Keys
    • 1.Qh1!
      • 1...Be6
        • 2.Qf3
          • 2...Bh3
            • 3.Qf7+
              • 3...Be6
                • 4.Qxe6#
          • 2...Bg4
            • 3.Qf7+
              • 3...Be6
                • 4.Qxe6#
          • 2...Bf5
            • 3.Qxf5
              • threat
                • 4.Qe6#
                • 4.Qf7#
              • 3...Sc3
                • 4.Sxa3#
              • 3...Sd6
                • 4.Sxa3#
              • 3...Sa7
                • 4.Sxa3#
              • 3...Sc7
                • 4.Sxa3#
          • 2...Bd7
            • 3.Qf7+
              • 3...Be6
                • 4.Qxe6#
          • 2...Bc8
            • 3.Qf7+
              • 3...Be6
                • 4.Qxe6#
          • 2...Bg8
            • 3.Qf5
              • 3...Sc3
                • 4.Sxa3#
              • 3...Sd6
                • 4.Sxa3#
              • 3...Sa7
                • 4.Sxa3#
              • 3...Sc7
                • 4.Sxa3#
              • 3...Bd5
                • 4.Qxd3#
              • 3...Be6
                • 4.Qxe6#
              • 3...Bf7
                • 4.Qxf7#
              • 3...Bh7
                • 4.Qe6#
                • 4.Qf7#
      • 1...Bf7
        • 2.Qe4
          • 2...Bg8
            • 3.Qf5
              • 3...Sc3
                • 4.Sxa3#
              • 3...Sd6
                • 4.Sxa3#
              • 3...Sa7
                • 4.Sxa3#
              • 3...Sc7
                • 4.Sxa3#
              • 3...Bd5
                • 4.Qxd3#
              • 3...Be6
                • 4.Qxe6#
              • 3...Bf7
                • 4.Qxf7#
              • 3...Bh7
                • 4.Qe6#
                • 4.Qf7#
      • 1...Bh7
        • 2.Qa8
          • 2...Be4
            • 3.Qxe4
              • threat
                • 4.Qe6#
              • 3...Sc3
                • 4.Sxa3#
              • 3...Sd6
                • 4.Sxa3#
              • 3...Sa7
                • 4.Sxa3#
              • 3...Sc7
                • 4.Sxa3#
          • 2...Bf5
            • 3.Qg8+
              • 3...Be6
                • 4.Qxe6#
          • 2...Bg6
            • 3.Qg8+
              • 3...Bf7
                • 4.Qxf7#

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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).