Problem Display
PID: 66475 (3n4/8/4kp2/3N1N2/1K2P2P/7P/4P3/1Q6 w - - 0 1)

Anonymous

The Chess Monthly (Hoffer), 1882

3n4/8/4kp2/3N1N2/1K2P2P/7P/4P3/1Q6

#4

8 + 3


SOLUTION


  • SOUND
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qc7
          • threat
            • 3.Sf4#
            • 3.Sd4#
            • 3.Sg7#
            • 3.Qe7#
          • 2...Sc6+
            • 3.Ka3
              • threat
                • 4.Sf4#
                • 4.Sg7#
              • 3...Se7
                • 4.Qxe7#
            • 3.Kc3
              • threat
                • 4.Sf4#
                • 4.Sg7#
              • 3...Se7
                • 4.Qxe7#
            • 3.Ka4
              • threat
                • 4.Sf4#
                • 4.Sg7#
              • 3...Se7
                • 4.Qxe7#
            • 3.Kc5
              • threat
                • 4.Sf4#
                • 4.Sg7#
              • 3...Se7
                • 4.Qxe7#
      • 1...Sc6+
        • 2.Qxc6+
          • 2...Kf7
            • 3.Qxf6+
              • 3...Ke8
                • 4.Qe7#
              • 3...Kg8
                • 4.Qg7#
      • 1...Ke5
        • 2.Qa4
          • 2...Sc6+
            • 3.Qxc6
              • 3...Kxe4
                • 4.Qe6#
          • 2...Kxe4
            • 3.Qe8+
              • 3...Kxd5
                • 4.e4#
              • 3...Kxf5
                • 4.e4#
              • 3...Se6
                • 4.Qxe6#
          • 2...Se6
            • 3.Qe8
              • 3...Kxe4
                • 4.Qxe6#
      • 1...Kf7
        • 2.Qc7+
          • 2...Kf8
            • 3.Qe7+
              • 3...Kg8
                • 4.Qg7#
            • 3.Qg7+
              • 3...Ke8
                • 4.Sxf6#
                • 4.Sc7#
                • 4.Sd6#
                • 4.Qe7#

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).