Problem Display
PID: 188456 (4k3/3N1N2/p3P3/p7/P7/8/7p/K3R2R w - - 0 1)

Johner, Hans

Schweizerische Schachzeitung, 1969

4k3/3N1N2/p3P3/p7/P7/8/7p/K3R2R

#4

7 + 4


SOLUTION


  • SOUND
  • Keys
    • 1.e7!
      • 1...Kxd7
        • 2.e8B+
          • 2...Kc7
            • 3.Rb1
              • 3...Kc8
                • 4.Rhc1#
          • 2...Kc8
            • 3.Rb1
              • 3...Kc7
                • 4.Rhc1#
      • 1...Kxf7
        • 2.e8B+
          • 2...Kg7
            • 3.Rxh2
              • 3...Kg8
                • 4.Rg1#
          • 2...Kg8
            • 3.Rxh2
              • 3...Kg7
                • 4.Rg1#

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).