Problem Display
PID: 165153 (8/5pn1/8/5Q2/4K3/8/6pp/6kb w - - 0 1)

Bakke, Nils Adrian

Die Schwalbe, 1970

8/5pn1/8/5Q2/4K3/8/6pp/6kb

#4

2 + 6


SOLUTION


  • SOUND
  • Keys
    • 1.Qf3!
      • threat
        • 2.Ke3
          • threat
            • 3.Qd1#
            • 3.Qf2#
          • 2...Sf5+
            • 3.Qxf5
              • 3...f6
                • 4.Qb1#
                • 4.Qf2#
        • 2.Qe2
          • threat
            • 3.Qe1#
          • 2...f5+
            • 3.Kd3
              • threat
                • 4.Qe1#
            • 3.Kf3
              • threat
                • 4.Qd1#
                • 4.Qe1#
                • 4.Qf2#
            • 3.Kd5
              • threat
                • 4.Qe1#
            • 3.Ke5
              • threat
                • 4.Qe1#
      • 1...f5+
        • 2.Ke3
          • threat
            • 3.Qd1#
            • 3.Qf2#
          • 2...f4+
            • 3.Ke2
              • threat
                • 4.Qf2#
      • 1...Sf5
        • 2.Qxf5
          • 2...f6
            • 3.Kf3
              • 3...Kf1
                • 4.Qb1#
      • 1...f6
        • 2.Qe2
          • threat
            • 3.Qe1#
          • 2...f5+
            • 3.Kd3
              • threat
                • 4.Qe1#
            • 3.Kf3
              • threat
                • 4.Qd1#
                • 4.Qe1#
                • 4.Qf2#
            • 3.Kd5
              • threat
                • 4.Qe1#
            • 3.Ke5
              • threat
                • 4.Qe1#

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).