Problem Display
PID: 79220 (2K2k2/3Q4/1Np4N/8/8/8/5r2/8 w - - 0 1)

von Alvensleben, Wichard Udo Reinhard

Deutsche Schachzeitung, 1986

2K2k2/3Q4/1Np4N/8/8/8/5r2/8

#3

4 + 3


SOLUTION


  • SOUND
  • Sets
    • 1...Ra2
      • 2.Qf7#
    • 1...Rb2
      • 2.Qf7#
    • 1...Rc2
      • 2.Qf7#
    • 1...Rd2
      • 2.Qf7#
    • 1...Re2
      • 2.Qf7#
    • 1...Rg2
      • 2.Qf7#
    • 1...Rh2
      • 2.Qf7#
    • 1...Rf7
      • 2.Qxf7#
    • 1...c5
      • 2.Sd5
        • threat
          • 3.Qe7#
        • 2...Rf7
          • 3.Qxf7#
        • 2...Re2
          • 3.Qf7#
  • Tries
    • 1.Kc7?
      • threat
        • 2.Sc8
          • threat
            • 3.Qe7#
          • 2...Rf7
            • 3.Qxf7#
          • 2...Re2
            • 3.Qf7#
      • 1...Rf1
        • 2.Sc8
          • threat
            • 3.Qe7#
          • 2...Rf7
            • 3.Qxf7#
          • 2...Re1
            • 3.Qf7#
      • 1...Rf3
        • 2.Sc8
          • threat
            • 3.Qe7#
          • 2...Rf7
            • 3.Qxf7#
          • 2...Re3
            • 3.Qf7#
      • 1...Rf4
        • 2.Sc8
          • threat
            • 3.Qe7#
          • 2...Rf7
            • 3.Qxf7#
          • 2...Re4
            • 3.Qf7#
      • 1...Rf5
        • 2.Sc8
          • threat
            • 3.Qe7#
          • 2...Rf7
            • 3.Qxf7#
          • 2...Re5
            • 3.Qf7#
      • 1...Rf6!
    • 1.Kd8?
      • threat
        • 2.Qe7#
      • 1...Rf7
        • 2.Qxf7#
      • 1...Re2
        • 2.Qf7#
      • 1...Rd2!
    • 1.Qd6+?
      • 1...Ke8
        • 2.Qd8#
      • 1...Kg7!
    • 1.Qg7+?
      • 1...Ke8
        • 2.Sa8
          • threat
            • 3.Sc7#
          • 2...Rf7
            • 3.Qxf7#
        • 2.Qe5+
          • 2...Kf8
            • 3.Sd7#
      • 1...Kxg7!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qe7#
      • 1...cxd5
        • 2.Kd8
          • threat
            • 3.Qe7#
          • 2...Rf7
            • 3.Qxf7#
          • 2...Re2
            • 3.Qf7#

FEATURES


NOT CLASSIFIED


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).