Problem Display
PID: 200919 (8/7k/4pKN1/P4pP1/R2p4/p2p4/p6r/8 w - - 0 1)

Kovacs, Norbert

Bekes, 1922

8/7k/4pKN1/P4pP1/R2p4/p2p4/p6r/8

#4

5 + 8


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Rb4!
      • threat
        • 2.Rb7+
          • 2...Kg8
            • 3.Rg7#
        • 2.Rb8
          • threat
            • 3.Rh8#
      • 1...Rb2
        • 2.Rxd4
          • threat
            • 3.Rh4+
              • 3...Kg8
                • 4.Rh8#
            • 3.Rd7+
              • 3...Kg8
                • 4.Rg7#
          • 2...Kg8
            • 3.Se7+
              • 3...Kh7
                • 4.Rh4#
              • 3...Kf8
                • 4.Rd8#
              • 3...Kh8
                • 4.Rh4#
            • 3.Rd8+
              • 3...Kh7
                • 4.Rh8#
      • 1...Rc2
        • 2.Rb7+
          • 2...Rc7
            • 3.Rxc7+
              • 3...Kg8
                • 4.Rg7#
        • 2.Rb8
          • threat
            • 3.Rh8#
          • 2...Rc8
            • 3.Rxc8
              • threat
                • 4.Rh8#

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).