Problem Display
PID: 49172 (n7/5B2/3PP3/Qp1kpN2/5p2/K7/6P1/8 w - - 0 1)

Vetesnik, Ladislav

Op de Hoogte, 1907

n7/5B2/3PP3/Qp1kpN2/5p2/K7/6P1/8

#3

7 + 5


SOLUTION


  • SOUND
  • Sets
    • 1...e4
      • 2.Qxb5#
  • Tries
    • 1.Qb4?
      • threat
        • 2.Se7#
      • 1...e4
        • 2.Qxb5#
      • 1...Kc6!
    • 1.e7+?
      • 1...Kc5
        • 2.Qa7+
          • 2...Kc6
            • 3.e8Q#
            • 3.e8B#
          • 2...Sb6
            • 3.Qc7#
        • 2.e8Q
          • threat
            • 3.Qexb5#
            • 3.Qaxb5#
          • 2...Sc7
            • 3.Qxc7#
            • 3.Qa7#
        • 2.e8B
          • threat
            • 3.Qxb5#
          • 2...Sc7
            • 3.Qxc7#
            • 3.Qa7#
      • 1...Kc6
        • 2.e8Q+
          • 2...Kc5
            • 3.Qexb5#
            • 3.Qaxb5#
          • 2...Kb7
            • 3.Bd5#
            • 3.Qexa8#
      • 1...Ke4!
  • Keys
    • 1.Qc3!
      • threat
        • 2.e7+
          • 2...Ke4
            • 3.Qc2#
      • 1...b4+
        • 2.Qxb4
          • threat
            • 3.Se7#
          • 2...Kc6
            • 3.Se7#
          • 2...e4
            • 3.Qb5#
      • 1...Ke4
        • 2.Qc2+
          • 2...Kd5
            • 3.e7#
      • 1...Sc7
        • 2.Se7+
          • 2...Ke4
            • 3.Bg6#
          • 2...Kxd6
            • 3.Qb4#
      • 1...f3
        • 2.e7+
          • 2...Ke4
            • 3.Qxf3#

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).