Problem Display
PID: 231683 (1n4bR/3p2Rn/3K4/3pN3/3Pk3/BPp5/2P1N3/8 w - - 0 1)

Jackson, A

Design and Work, 1879

(First published on Sat Jun 14 1879)

1n4bR/3p2Rn/3K4/3pN3/3Pk3/BPp5/2P1N3/8

#3

9 + 7


15239 Valois Notebooks 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Kf5
      • 2.Sg3+
        • 2...Kf4
          • 3.Bc1#
        • 2...Kf6
          • 3.Rg6#
  • Tries
    • 1.Sg3+?
      • 1...Kxd4
        • 2.Bc5#
      • 1...Kf4
        • 2.Bc1#
      • 1...Ke3!
    • 1.Rg4+?
      • 1...Kf5
        • 2.Sg3+
          • 2...Kf6
            • 3.Rg6#
        • 2.Rhxg8
          • threat
            • 3.Rf4#
          • 2...Kf6
            • 3.Rf4#
      • 1...Ke3!
  • Keys
    • 1.Bc1!
      • threat
        • 2.Sg3+
          • 2...Kxd4
            • 3.Sf3#
            • 3.Rg4#
      • 1...Kf5
        • 2.Sg3+
          • 2...Kf6
            • 3.Rg6#
      • 1...Be6
        • 2.Sg3+
          • 2...Kxd4
            • 3.Sf3#
      • 1...Sg5
        • 2.Rh4+
          • 2...Kf5
            • 3.Rf4#
      • 1...Sf6
        • 2.Sg3+
          • 2...Kxd4
            • 3.Sf3#
      • 1...Sf8
        • 2.Sg3+
          • 2...Kxd4
            • 3.Sf3#
            • 3.Rg4#
            • 3.Rh4#
        • 2.Rh4+
          • 2...Kf5
            • 3.Rf4#

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).