Problem Display
PID: 28287 (8/n7/1p1R4/1k1K4/8/1NR5/8/8 w - - 0 1)

Bruder, Wolfgang Alexander

Deutsche Schachzeitung, 1987

8/n7/1p1R4/1k1K4/8/1NR5/8/8

#5

4 + 3


SOLUTION


  • SOUND
  • Keys
    • 1.Sc5!
      • threat
        • 2.Rb3+
          • 2...Ka5
            • 3.Rdxb6
              • threat
                • 4.Ra6#
      • 1...Ka5
        • 2.Ra3+
          • 2...Kb4
            • 3.Rb3+
              • 3...Ka5
                • 4.Rdxb6
                  • threat
                    • 5.Ra6#
          • 2...Kb5
            • 3.Rb3+
              • 3...Ka5
                • 4.Rdxb6
                  • threat
                    • 5.Ra6#
      • 1...bxc5
        • 2.Rb3+
          • 2...Ka4
            • 3.Kc4
              • threat
                • 4.Ra6#
              • 3...Sc6
                • 4.Rxc6
                  • 4...Ka5
                    • 5.Ra3#
          • 2...Ka5
            • 3.Kc4
              • threat
                • 4.Ra3#
              • 3...Sc6
                • 4.Rxc6
                  • 4...Ka4
                    • 5.Ra6#
              • 3...Sb5
                • 4.Rxb5+
                  • 4...Ka4
                    • 5.Ra6#
      • 1...Sc6
        • 2.Rxc6
          • threat
            • 3.Rb3+
              • 3...Ka5
                • 4.Kc4
                  • threat
                    • 5.Ra3#
                    • 5.Rb5#
                  • 4...b5+
                    • 5.Rxb5#
          • 2...Kb4
            • 3.Rb3+
              • 3...Ka5
                • 4.Kc4
                  • threat
                    • 5.Ra3#
                    • 5.Rb5#
                  • 4...b5+
                    • 5.Rxb5#
          • 2...Ka5
            • 3.Rb3
              • threat
                • 4.Kc4
                  • threat
                    • 5.Ra3#
                    • 5.Rb5#
                  • 4...b5+
                    • 5.Rxb5#
              • 3...bxc5
                • 4.Kc4
                  • 4...Ka4
                    • 5.Ra6#
          • 2...bxc5
            • 3.Rb3+
              • 3...Ka4
                • 4.Kc4
                  • 4...Ka5
                    • 5.Ra3#
              • 3...Ka5
                • 4.Kc4
                  • 4...Ka4
                    • 5.Ra6#
      • 1...Sc8
        • 2.Rb3+
          • 2...Ka5
            • 3.Rdxb6
              • threat
                • 4.R3b5#
                • 4.R6b5#
                • 4.Ra6#
              • 3...Sxb6+
                • 4.Kc6
                  • threat
                    • 5.Rb5#
              • 3...Se7+
                • 4.Kc4
                  • threat
                    • 5.R3b5#
                    • 5.R6b5#
                    • 5.Ra6#
                • 4.Ke4
                  • threat
                    • 5.R3b5#
                    • 5.R6b5#
                    • 5.Ra6#
                • 4.Ke6
                  • threat
                    • 5.R3b5#
                    • 5.R6b5#
                    • 5.Ra6#

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).