Problem Display
PID: 38128 (8/6p1/2pp2P1/1rP2Q1K/Nq1kPPR1/1pb1p3/4B3/8 w - - 0 1)

Goldschmeding, Cornelis

7th HM., Schakend Nederland, 1972

8/6p1/2pp2P1/1rP2Q1K/Nq1kPPR1/1pb1p3/4B3/8

#3

9 + 9


SOLUTION


  • SOUND
  • Sets
    • 1...dxc5
      • 2.Qe5#
    • 1...d5
      • 2.Qe5#
  • Tries
    • 1.Qf6+?
      • 1...Kxe4
        • 2.Qe6+
          • 2...Kd4
            • 3.f5#
          • 2...Be5
            • 3.fxe5#
            • 3.f5#
        • 2.f5+
          • 2...Kd5
            • 3.Qxd6#
            • 3.Qe6#
      • 1...gxf6!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qxd6+
          • 2...Kxe4
            • 3.Qd3#
        • 2.f5
          • threat
            • 3.Qxd6#
            • 3.e5#
      • 1...Qxc5+
        • 2.f5
          • threat
            • 3.e5#
          • 2...Qxf5+
            • 3.exf5#
          • 2...Qd5
            • 3.exd5#
          • 2...Qe5
            • 3.Qc4#
      • 1...Rxc5+
        • 2.e5
          • threat
            • 3.f5#
          • 2...Rxe5+
            • 3.fxe5#
          • 2...Ke4
            • 3.f5#
          • 2...dxe5
            • 3.fxe5#
      • 1...Qxa4
        • 2.Qxd6+
          • 2...Kxe4
            • 3.Qd3#
      • 1...Rb8
        • 2.Qxd6+
          • 2...Kxe4
            • 3.Qd3#
      • 1...Ba1
        • 2.Qxd6+
          • 2...Kxe4
            • 3.Qd3#
      • 1...Be1
        • 2.Qxd6+
          • 2...Kxe4
            • 3.Qe5#
            • 3.Qd3#
      • 1...Bb2
        • 2.Qxd6+
          • 2...Kxe4
            • 3.Qd3#
      • 1...Bd2
        • 2.Qxd6+
          • 2...Kxe4
            • 3.Qe5#
            • 3.Qd3#

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).