Problem Display
PID: 228507 (7k/4p3/4P2P/7K/8/7R/8/8 w - - 0 1)

Ermilow, N

Niva, 1872

7k/4p3/4P2P/7K/8/7R/8/8

#3

4 + 2


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Tries
    • 1.Ra3?
      • threat
        • 2.Kg6
          • 2...Kg8
            • 3.Ra8#
      • 1...Kg8
        • 2.Kg6
          • threat
            • 3.Ra8#
          • 2...Kf8
            • 3.Ra8#
          • 2...Kh8
            • 3.Ra8#
      • 1...Kh7!
    • 1.Rb3?
      • threat
        • 2.Kg6
          • 2...Kg8
            • 3.Rb8#
      • 1...Kg8
        • 2.Kg6
          • threat
            • 3.Rb8#
          • 2...Kf8
            • 3.Rb8#
          • 2...Kh8
            • 3.Rb8#
      • 1...Kh7!
    • 1.Rc3?
      • threat
        • 2.Kg6
          • 2...Kg8
            • 3.Rc8#
      • 1...Kg8
        • 2.Kg6
          • threat
            • 3.Rc8#
          • 2...Kf8
            • 3.Rc8#
          • 2...Kh8
            • 3.Rc8#
      • 1...Kh7!
    • 1.Rd3?
      • threat
        • 2.Kg6
          • 2...Kg8
            • 3.Rd8#
      • 1...Kg8
        • 2.Kg6
          • threat
            • 3.Rd8#
          • 2...Kf8
            • 3.Rd8#
          • 2...Kh8
            • 3.Rd8#
      • 1...Kh7!
    • 1.Rf3?
      • 1...Kg8
        • 2.Kg6
          • 2...Kh8
            • 3.Rf8#
      • 1...Kh7!
  • Keys
    • 1.Kg6!
      • 1...Kg8
        • 2.Ra3
          • threat
            • 3.Ra8#
          • 2...Kf8
            • 3.Ra8#
          • 2...Kh8
            • 3.Ra8#
        • 2.Rb3
          • threat
            • 3.Rb8#
          • 2...Kf8
            • 3.Rb8#
          • 2...Kh8
            • 3.Rb8#
        • 2.Rc3
          • threat
            • 3.Rc8#
          • 2...Kf8
            • 3.Rc8#
          • 2...Kh8
            • 3.Rc8#
        • 2.Rd3
          • threat
            • 3.Rd8#
          • 2...Kf8
            • 3.Rd8#
          • 2...Kh8
            • 3.Rd8#
        • 2.Rf3
          • 2...Kh8
            • 3.Rf8#

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).