Problem Display
PID: 36721 (4R3/2p5/8/8/4R3/2pk4/2p5/2K5 w - - 0 1)

de Jong, Leonard Nicholaas

De Schaakwereld, 1938

4R3/2p5/8/8/4R3/2pk4/2p5/2K5

#4

3 + 4


SOLUTION


  • SOUND
  • Keys
    • 1.Ra4!
      • threat
        • 2.Re1
          • threat
            • 3.Rae4
              • threat
                • 4.R1e3#
          • 2...c5
            • 3.Rae4
              • 3...c4
                • 4.R1e3#
          • 2...c6
            • 3.Rae4
              • 3...c5
                • 4.R1e3#
      • 1...c5
        • 2.Re5
          • 2...c4
            • 3.Raa5
              • 3...Kd4
                • 4.Rad5#
      • 1...c6
        • 2.Re1
          • 2...c5
            • 3.Rae4
              • 3...c4
                • 4.R1e3#

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).