Problem Display
PID: 176869 (8/8/8/8/n1N5/2P5/8/kBR4K w - - 0 1)

Junker, Karl

Schach-Echo, 1970

8/8/8/8/n1N5/2P5/8/kBR4K

#3

5 + 2


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Rc2?
      • 1...Sxc3
        • 2.Sd2
          • 2...Sxb1
            • 3.Sb3#
          • 2...Sd1
            • 3.Ra2#
          • 2...Sa2
            • 3.Rxa2#
          • 2...Se2
            • 3.Ra2#
          • 2...Sa4
            • 3.Ra2#
          • 2...Se4
            • 3.Ra2#
          • 2...Sb5
            • 3.Ra2#
          • 2...Sd5
            • 3.Ra2#
      • 1...Sb2
        • 2.Sd2
          • 2...Sd1
            • 3.Ra2#
          • 2...Sd3
            • 3.Ra2#
          • 2...Sa4
            • 3.Ra2#
          • 2...Sc4
            • 3.Ra2#
        • 2.Sa3
          • 2...Sd1
            • 3.Ra2#
          • 2...Sd3
            • 3.Ra2#
          • 2...Sa4
            • 3.Ra2#
          • 2...Sc4
            • 3.Ra2#
      • 1...Sc5
        • 2.Sd2
          • threat
            • 3.Ra2#
        • 2.Sa3
          • threat
            • 3.Ra2#
      • 1...Sb6
        • 2.Sd2
          • threat
            • 3.Ra2#
        • 2.Sa3
          • threat
            • 3.Ra2#
      • 1...Kxb1!
  • Keys
    • 1.Sd2!
      • 1...Kb2
        • 2.Rc2+
          • 2...Ka1
            • 3.Ra2#
          • 2...Ka3
            • 3.Ra2#
      • 1...Sxc3
        • 2.Rc2
          • 2...Sxb1
            • 3.Sb3#
          • 2...Sd1
            • 3.Ra2#
          • 2...Sa2
            • 3.Rxa2#
          • 2...Se2
            • 3.Ra2#
          • 2...Sa4
            • 3.Ra2#
          • 2...Se4
            • 3.Ra2#
          • 2...Sb5
            • 3.Ra2#
          • 2...Sd5
            • 3.Ra2#
      • 1...Sc5
        • 2.Rc2
          • threat
            • 3.Ra2#
      • 1...Sb6
        • 2.Rc2
          • threat
            • 3.Ra2#

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).