Problem Display
PID: 34374 (8/p7/P6r/6R1/5P2/5K1P/1P4Rp/7k w - - 0 1)

von Holzhausen, Walther Freiherr

Deutsches Wochenschach, 1909

8/p7/P6r/6R1/5P2/5K1P/1P4Rp/7k

#4

7 + 4


SOLUTION


  • SOUND
  • Keys
    • 1.Ra5!
      • threat
        • 2.Ra1#
      • 1...Rxh3+
        • 2.Rg3
          • threat
            • 3.Ra1#
          • 2...Rxg3+
            • 3.Kxg3
              • 3...Kg1
                • 4.Ra1#
      • 1...Rxa6
        • 2.Rgg5
          • 2...Rxa5
            • 3.Rxa5
              • threat
                • 4.Ra1#
              • 3...Kg1
                • 4.Ra1#
          • 2...Rc6
            • 3.Ra1+
              • 3...Rc1
                • 4.Rxc1#
          • 2...Rd6
            • 3.Ra1+
              • 3...Rd1
                • 4.Rxd1#
          • 2...Re6
            • 3.Ra1+
              • 3...Re1
                • 4.Rxe1#

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).