Problem Display
PID: 142661 (b4Kn1/P4Npq/4p3/P2k1p1p/1p6/2p3pP/7P/b4QB1 w - - 0 1)

Moller, Jorgen Thorvald

1st Prize, Norsk Sjakkblad, 1919

b4Kn1/P4Npq/4p3/P2k1p1p/1p6/2p3pP/7P/b4QB1

#3

8 + 12


693 Neue Zurcher Zeitung 1921

SOLUTION


  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qg2+
        • 2...Kd3
          • 3.Se5#
        • 2...Kf4
          • 3.hxg3#
    • 1...Bc6
      • 2.Qd3#
    • 1...c2
      • 2.Qf3+
        • 2...Kc4
          • 3.Sd6#
    • 1...f4
      • 2.Qb5+
        • 2...Ke4
          • 3.Sg5#
  • Keys
    • 1.Bb6!
      • threat
        • 2.Qd3+
          • 2...Kc6
            • 3.Sd8#
      • 1...Ke4
        • 2.Qg2+
          • 2...Kd3
            • 3.Se5#
          • 2...Kf4
            • 3.hxg3#
      • 1...Kc6
        • 2.Qc4+
          • 2...Kb7
            • 3.Sd6#
            • 3.Sd8#
          • 2...Kd7
            • 3.Qc7#
      • 1...e5
        • 2.Qd3+
          • 2...Kc6
            • 3.Sd8#
          • 2...Ke6
            • 3.Qd6#
      • 1...Bb7
        • 2.Qd3+
          • 2...Kc6
            • 3.Se5#
            • 3.Sd8#
      • 1...c2
        • 2.Qf3+
          • 2...Kc4
            • 3.Sd6#
      • 1...f4
        • 2.Qb5+
          • 2...Ke4
            • 3.Sg5#

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).