Problem Display
PID: 20411 (8/4p1Q1/3pP2K/3P3P/6Pp/5B1k/5pRP/8 w - - 0 1)

Giegold, Fritz Emil

Illustrierte Stern, 1978

8/4p1Q1/3pP2K/3P3P/6Pp/5B1k/5pRP/8

#4

9 + 5


SOLUTION


  • SOUND
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qf5
          • threat
            • 3.g5#
      • 1...dxe5
        • 2.Rxf2
          • 2...e4
            • 3.Bxe4
              • 3...Kxg4
                • 4.Bf5#
      • 1...f1Q
        • 2.Rg3+
          • 2...Kxh2
            • 3.Rg2+
              • 3...Kh1
                • 4.Qh2#
              • 3...Kh3
                • 4.Rh2#
                • 4.Qh2#
      • 1...f1S
        • 2.Qf4
          • 2...Sd2
            • 3.Re2
              • threat
                • 4.Bg2#
              • 3...Sxf3
                • 4.Qxf3#
            • 3.Rf2
              • threat
                • 4.Bg2#
              • 3...Sxf3
                • 4.Qxf3#
            • 3.Qf5
              • threat
                • 4.g5#
              • 3...Sxf3
                • 4.Qxf3#
            • 3.g5
              • threat
                • 4.Qg4#
                • 4.Qf5#
          • 2...Se3
            • 3.g5
              • 3...Sg4+
                • 4.Qxg4#
              • 3...Sf5+
                • 4.Qxf5#
              • 3...Sxg2
                • 4.Bg4#
              • 3...Sxd5
                • 4.Qg4#
                • 4.Qf5#
              • 3...Sd1
                • 4.Qg4#
                • 4.Qf5#
              • 3...Sf1
                • 4.Qg4#
                • 4.Qf5#
              • 3...Sc2
                • 4.Qg4#
                • 4.Qf5#
              • 3...Sc4
                • 4.Qg4#
                • 4.Qf5#
          • 2...Sg3
            • 3.hxg3
              • 3...hxg3
                • 4.Qxg3#
            • 3.g5
              • threat
                • 4.Qg4#
              • 3...Sf5+
                • 4.Qxf5#
      • 1...f1B
        • 2.Rg3+
          • 2...Kxh2
            • 3.Rg2+
              • 3...Kh1
                • 4.Qh2#
              • 3...Kh3
                • 4.Rh2#
                • 4.Qh2#

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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).