Problem Display
PID: 89439 (8/N1nrn1pK/4p3/3k4/1P1p4/6Qp/P1P2NP1/3r4 w - - 0 1)

Zimmermann, Stepan

Zlata Praha, 1894

8/N1nrn1pK/4p3/3k4/1P1p4/6Qp/P1P2NP1/3r4

#3

8 + 9


6490 yacpdb 2009
14986 White-Hume Collection 2013

SOLUTION


  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qb3#
    • 1...Rd6
      • 2.Qf3+
        • 2...Kc4
          • 3.Qb3#
        • 2...Ke5
          • 3.Sg4#
    • 1...e5
      • 2.Qb3+
        • 2...Kd6
          • 3.Se4#
  • Tries
    • 1.Qe5+?
      • 1...Kc4
        • 2.Qc5#
      • 1...Kxe5!
    • 1.c4+?
      • 1...Kxc4
        • 2.Qb3#
      • 1...dxc4 ep!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Qe5+
          • 2...Kc4
            • 3.Qc5#
      • 1...e5
        • 2.Qxe5+
          • 2...Kc4
            • 3.Qc5#
      • 1...Re1
        • 2.c4+
          • 2...Kxc4
            • 3.Qb3#
          • 2...Ke4
            • 3.Qf3#
          • 2...dxc4 ep
            • 3.Qd3#
      • 1...Sa6
        • 2.Qf3+
          • 2...Kc4
            • 3.Qb3#
          • 2...Kd6
            • 3.Sb5#
      • 1...Sc6
        • 2.Qb3+
          • 2...Ke4
            • 3.Qf3#
          • 2...Kd6
            • 3.Sc8#
        • 2.Qf3+
          • 2...Kc4
            • 3.Qb3#
          • 2...Kd6
            • 3.Sc8#
      • 1...Sg6
        • 2.Qf3+
          • 2...Kc4
            • 3.Qb3#
          • 2...Kd6
            • 3.Sc8#

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).