Problem Display
PID: 166534 (7k/8/8/4K3/8/8/8/R7 w - - 0 1)

Tinsley, OW

Pittsburgh Sun, 1922

(First published on Sat Aug 12 1922)

7k/8/8/4K3/8/8/8/R7

#3

2 + 1


3713 Snap 2018
14986 White-Hume Collection 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Rh1+?
      • 1...Kg8
        • 2.Kf6
          • 2...Kf8
            • 3.Rh8#
      • 1...Kg7!
    • 1.Ra8+?
      • 1...Kh7
        • 2.Kf6
          • 2...Kh6
            • 3.Rh8#
      • 1...Kg7!
  • Keys
    • 1.Kf6!
      • threat
        • 2.Kg6
          • 2...Kg8
            • 3.Ra8#
        • 2.Kf7
          • 2...Kh7
            • 3.Rh1#
      • 1...Kh7
        • 2.Ra8
          • 2...Kh6
            • 3.Rh8#
      • 1...Kg8
        • 2.Rh1
          • 2...Kf8
            • 3.Rh8#

Anticipated by 13027(1882), 166533(1921)

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).