Problem Display
PID: 40868 (n2K2nb/1p6/1p1k1p2/pP1p1P2/P5P1/8/5P2/3Q4 w - - 0 1)

Feher, Ignaz

3rd Comm., BCF 030. Ty., 1938-1939

n2K2nb/1p6/1p1k1p2/pP1p1P2/P5P1/8/5P2/3Q4

#4

7 + 9


SOLUTION


  • SOUND
  • Keys
    • 1.Qd3!
      • threat
        • 2.f4
          • threat
            • 3.Qa3#
          • 2...Kc5
            • 3.Qc3+
              • 3...Kd6
                • 4.Qa3#
      • 1...Kc5
        • 2.Qc3+
          • 2...Kd6
            • 3.f4
              • threat
                • 4.Qa3#
              • 3...d4
                • 4.Qxd4#
      • 1...Ke5
        • 2.Qe3+
          • 2...Kd6
            • 3.f4
              • threat
                • 4.Qa3#
              • 3...d4
                • 4.Qxd4#
      • 1...Sc7
        • 2.Qg3+
          • 2...Kc5
            • 3.Qc3+
              • 3...Kd6
                • 4.Qxc7#
      • 1...Sh6
        • 2.Qa3+
          • 2...Ke5
            • 3.Qe3+
              • 3...Kd6
                • 4.Qe7#
      • 1...Se7
        • 2.Qa3+
          • 2...Ke5
            • 3.Qe3+
              • 3...Kd6
                • 4.Qxe7#

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).