Problem Display
PID: 8791 (1kNBK3/1B4pp/P7/6n1/p1p1p3/1Prp1R1n/8/8 w - - 0 1)

Froberg, Johan Hilding Laurentius

Problem (Zagreb), 1962

1kNBK3/1B4pp/P7/6n1/p1p1p3/1Prp1R1n/8/8

#3

7 + 10


SOLUTION


  • SOUND
  • Sets
    • 1...Se6
      • 2.Rf7
        • threat
          • 3.a7#
        • 2...Sc7+
          • 3.Bxc7#
    • 1...Sf7
      • 2.Rxf7
        • threat
          • 3.Bc7#
          • 3.a7#
    • 1...axb3
      • 2.Se7
        • threat
          • 3.Sc6#
        • 2...Ka7
          • 3.Sc6#
  • Tries
    • 1.Sb6?
      • threat
        • 2.Sd7+
          • 2...Ka7
            • 3.Bb6#
      • 1...Ka7
        • 2.Bc7
          • threat
            • 3.Sc8#
      • 1...Rxb3!
    • 1.Se7?
      • threat
        • 2.Sc6#
      • 1...Ka7
        • 2.Sc6#
      • 1...cxb3!
    • 1.Rf7?
      • threat
        • 2.Bc7#
        • 2.a7#
      • 1...cxb3
        • 2.a7#
      • 1...Se6
        • 2.a7#
      • 1...Sxf7!
    • 1.bxa4?
      • threat
        • 2.Se7
          • threat
            • 3.Sc6#
          • 2...Ka7
            • 3.Sc6#
      • 1...Sxf3
        • 2.Be7
          • threat
            • 3.Bd6#
          • 2...Kc7
            • 3.Bd6#
      • 1...Se6
        • 2.Rf7
          • threat
            • 3.a7#
          • 2...Sc7+
            • 3.Bxc7#
      • 1...Sf7
        • 2.Rxf7
          • threat
            • 3.Bc7#
            • 3.a7#
      • 1...Rb3!
  • Keys
    • 1.b4!
      • threat
        • 2.Se7
          • threat
            • 3.Sc6#
          • 2...Ka7
            • 3.Sc6#
      • 1...Sxf3
        • 2.Be7
          • threat
            • 3.Bd6#
          • 2...Kc7
            • 3.Bd6#
      • 1...Se6
        • 2.Rf7
          • threat
            • 3.a7#
          • 2...Sc7+
            • 3.Bxc7#
      • 1...Sf7
        • 2.Rxf7
          • threat
            • 3.Bc7#
            • 3.a7#

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).