Problem Display
PID: 253595 (8/6p1/2R5/P2k4/3N2Pp/3P1N1K/8/8 w - - 0 1)

Junker, Karl

Schach-Echo, 1969

8/6p1/2R5/P2k4/3N2Pp/3P1N1K/8/8

#4

7 + 3


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Keys
    • 1.Rb6!
      • threat
        • 2.Sc2
          • threat
            • 3.Se3+
              • 3...Kc5
                • 4.d4#
          • 2...Kc5
            • 3.Se3
              • threat
                • 4.d4#
        • 2.Sf5
          • threat
            • 3.Se3+
              • 3...Kc5
                • 4.d4#
          • 2...Kc5
            • 3.S3d4
              • threat
                • 4.Rb5#
              • 3...Kd5
                • 4.Rb5#
            • 3.Se3
              • threat
                • 4.d4#
      • 1...Kc5
        • 2.Sf5
          • threat
            • 3.S3d4
              • threat
                • 4.Rb5#
              • 3...Kd5
                • 4.Rb5#
            • 3.Se3
              • threat
                • 4.d4#
          • 2...Kd5
            • 3.Se3+
              • 3...Kc5
                • 4.d4#
          • 2...g5
            • 3.S3d4
              • 3...Kd5
                • 4.Rb5#
          • 2...g6
            • 3.Se3
              • 3...g5
                • 4.d4#
      • 1...g5
        • 2.Sf5
          • 2...Kc5
            • 3.S3d4
              • 3...Kd5
                • 4.Rb5#
      • 1...g6
        • 2.Sc2
          • threat
            • 3.Se3+
              • 3...Kc5
                • 4.d4#
          • 2...Kc5
            • 3.Se3
              • 3...g5
                • 4.d4#

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).