Problem Display
PID: 33940 (1b3Q2/q2p3N/n3p3/1Bp5/4k1pr/3N3P/3P1P1P/B2n2K1 w - - 0 1)

von Cywinski, August

Deutsche Schachzeitung, 1865

1b3Q2/q2p3N/n3p3/1Bp5/4k1pr/3N3P/3P1P1P/B2n2K1

#4

10 + 10


SOLUTION


  • SOUND
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sg5#
      • 1...Rxh7
        • 2.Bd3+
          • 2...Kf3
            • 3.Be2+
              • 3...Ke4
                • 4.d3#
      • 1...Bxf4
        • 2.f3+
          • 2...gxf3
            • 3.Qf5+
              • 3...Kxf5
                • 4.Bd3#
              • 3...exf5
                • 4.Sf6#
      • 1...Rh5
        • 2.Bd3+
          • 2...Kf3
            • 3.Se2+
              • 3...Rf5
                • 4.Sg5#
              • 3...Bf4
                • 4.Qxf4#
            • 3.Sg2+
              • 3...Rf5
                • 4.Sg5#
              • 3...Bf4
                • 4.Se1#
                • 4.Qxf4#
            • 3.Sd5+
              • 3...Rf5
                • 4.Sg5#
              • 3...Bf4
                • 4.Qxf4#
            • 3.Sxh5+
              • 3...Bf4
                • 4.Sg5#
                • 4.Qxf4#
            • 3.Sxe6+
              • 3...Rf5
                • 4.Shg5#
              • 3...Bf4
                • 4.Qxf4#
            • 3.Sg6+
              • 3...Rf5
                • 4.Sg5#
              • 3...Bf4
                • 4.Qxf4#
            • 3.Be2+
              • 3...Ke4
                • 4.d3#

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).