Problem Display
PID: 216512 (1R5K/8/k7/1R6/8/8/4p3/5b2 w - - 0 1)

Erdenbrecher, Hans Michael

Club de Xadrez Sao Paulo, 1957

1R5K/8/k7/1R6/8/8/4p3/5b2

#5

3 + 3


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Rb2!
      • threat
        • 2.Ra2#
        • 2.Ra8#
      • 1...Ka7
        • 2.R8b7+
          • 2...Ka6
            • 3.R7b4
              • threat
                • 4.Ra2#
                • 4.Ra4#
              • 3...Ka5
                • 4.Rb8
                  • threat
                    • 5.Ra2#
                    • 5.Ra8#
                  • 4...Ka4
                    • 5.Ra2#
                    • 5.Ra8#
                  • 4...Ka6
                    • 5.Ra2#
                    • 5.Ra8#
          • 2...Ka8
            • 3.R7b4
              • threat
                • 4.Ra2#
                • 4.Ra4#
              • 3...e1Q
                • 4.Ra2+
                  • 4...Ba6
                    • 5.Rxa6#
              • 3...e1S
                • 4.Ra2+
                  • 4...Ba6
                    • 5.Rxa6#
                • 4.Ra4+
                  • 4...Ba6
                    • 5.Rxa6#
              • 3...e1B
                • 4.Ra2+
                  • 4...Ba6
                    • 5.Rxa6#
              • 3...e1R
                • 4.Ra2+
                  • 4...Ba6
                    • 5.Rxa6#
                • 4.Ra4+
                  • 4...Ba6
                    • 5.Rxa6#
            • 3.R7b5
              • threat
                • 4.Ra2#
                • 4.Ra5#
              • 3...e1Q
                • 4.Ra2+
                  • 4...Qa5
                    • 5.Raxa5#
              • 3...e1B
                • 4.Ra2+
                  • 4...Ba5
                    • 5.Raxa5#
        • 2.R8b5
          • threat
            • 3.Ra2#
            • 3.Ra5#
          • 2...Ka6
            • 3.R5b4
              • threat
                • 4.Ra2#
                • 4.Ra4#
              • 3...Ka5
                • 4.Rb8
                  • threat
                    • 5.Ra2#
                    • 5.Ra8#
                  • 4...Ka4
                    • 5.Ra2#
                    • 5.Ra8#
                  • 4...Ka6
                    • 5.Ra2#
                    • 5.Ra8#

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).