Problem Display
PID: 30219 (R7/1pN5/1k1P4/N7/n2K4/8/8/8 w - - 0 1)

Young, Brian WM

The Problemist, 1966

R7/1pN5/1k1P4/N7/n2K4/8/8/8

#3

5 + 3


56 The Problemist 2007

SOLUTION


  • SOUND
  • Sets
    • 1...Sb2
      • 2.Kd5
        • 2...Sd1
          • 3.Sc4#
        • 2...Sd3
          • 3.Sc4#
        • 2...Sa4
          • 3.Sc4#
        • 2...Sc4
          • 3.Sxc4#
    • 1...Sc3
      • 2.Kc4
        • 2...Sb1
          • 3.Sd5#
        • 2...Sd1
          • 3.Sd5#
        • 2...Sa2
          • 3.Sd5#
        • 2...Se2
          • 3.Sd5#
        • 2...Sa4
          • 3.Sd5#
        • 2...Se4
          • 3.Sd5#
        • 2...Sb5
          • 3.Sd5#
        • 2...Sd5
          • 3.Sxd5#
    • 1...Sc5
      • 2.Kd5
        • threat
          • 3.Sc4#
  • Tries
    • 1.Kd5?
      • threat
        • 2.Sc4#
      • 1...Sc3+
        • 2.Kc4
          • 2...Sb1
            • 3.Sd5#
          • 2...Sd1
            • 3.Sd5#
          • 2...Sa2
            • 3.Sd5#
          • 2...Se2
            • 3.Sd5#
          • 2...Sa4
            • 3.Sd5#
          • 2...Se4
            • 3.Sd5#
          • 2...Sb5
            • 3.Sd5#
          • 2...Sd5
            • 3.Sxd5#
      • 1...Sb2!
  • Keys
    • 1.Kc4!
      • threat
        • 2.Sd5#
      • 1...Sb2+
        • 2.Kd5
          • 2...Sd1
            • 3.Sc4#
          • 2...Sd3
            • 3.Sc4#
          • 2...Sa4
            • 3.Sc4#
          • 2...Sc4
            • 3.Sxc4#
      • 1...Sc3
        • 2.d7
          • 2...Kxc7
            • 3.d8Q#
          • 2...Sb1
            • 3.Sd5#
          • 2...Sd1
            • 3.Sd5#
          • 2...Sa2
            • 3.Sd5#
          • 2...Se2
            • 3.Sd5#
          • 2...Sa4
            • 3.Sd5#
          • 2...Se4
            • 3.Sd5#
          • 2...Sb5
            • 3.Sd5#
          • 2...Sd5
            • 3.Sxd5#

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).