Problem Display
PID: 20006 (8/1P6/P2k4/7P/3NK3/8/8/8 w - - 0 1)

Kohnlein, Friedrich

Deutsches Wochenschach, 1913

8/1P6/P2k4/7P/3NK3/8/8/8

#4

5 + 1


SOLUTION


  • SOUND
  • Keys
    • 1.b8Q+!
      • 1...Kc5
        • 2.Ke5
          • 2...Kc4
            • 3.Qb3+
              • 3...Kc5
                • 4.Qb5#
      • 1...Kd7
        • 2.Kd5
          • 2...Ke7
            • 3.Se6
              • 3...Kf6
                • 4.Qf8#
              • 3...Kd7
                • 4.Qd8#
              • 3...Kf7
                • 4.Qf8#
      • 1...Ke7
        • 2.Sf5+
          • 2...Ke6
            • 3.Qe8+
              • 3...Kf6
                • 4.Qg6#
                • 4.Qe7#
            • 3.Qa7
              • 3...Kf6
                • 4.Qe7#
            • 3.Qc7
              • 3...Kf6
                • 4.Qe7#
            • 3.Qb7
              • 3...Kf6
                • 4.Qe7#
          • 2...Kf6
            • 3.Qe8
              • 3...Kg5
                • 4.Qg6#
          • 2...Kd7
            • 3.Qd6+
              • 3...Kc8
                • 4.Se7#
              • 3...Ke8
                • 4.Qe7#
          • 2...Kf7
            • 3.Qd8
              • 3...Ke6
                • 4.Qe7#

FEATURES


NOT CLASSIFIED


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).