Problem Display
PID: 208575 (k2N1B1R/8/8/8/8/8/8/7K w - - 0 1)

van den Bergh, Pieter Theodor Lodewijk Helvetius

Sissa, 1850

k2N1B1R/8/8/8/8/8/8/7K

#4

4 + 1


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Bd6!
      • 1...Ka7
        • 2.Bc7
          • threat
            • 3.Rh5
              • threat
                • 4.Ra5#
              • 3...Ka6
                • 4.Ra5#
              • 3...Ka8
                • 4.Ra5#
            • 3.Rh6
              • 3...Ka8
                • 4.Ra6#
          • 2...Ka6
            • 3.Rh5
              • 3...Ka7
                • 4.Ra5#
          • 2...Ka8
            • 3.Rh2
              • 3...Ka7
                • 4.Ra2#
            • 3.Rh3
              • 3...Ka7
                • 4.Ra3#
            • 3.Rh4
              • 3...Ka7
                • 4.Ra4#
            • 3.Rh5
              • 3...Ka7
                • 4.Ra5#

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).