Problem Display
PID: 197214 (5B2/2p5/1PP5/7R/k7/4p3/1K2P3/8 w - - 0 1)

von Duben, Gustaf Henrik

Nya Dagligt Allehanda, 1920

5B2/2p5/1PP5/7R/k7/4p3/1K2P3/8

#4

6 + 3


6490 yacpdb 2019

SOLUTION


  • SOUND
  • Keys
    • 1.Bb4!
      • threat
        • 2.bxc7
          • 2...Kxb4
            • 3.c8Q
              • threat
                • 4.Qg4#
              • 3...Ka4
                • 4.Qg4#
              • 3...Kc4
                • 4.Qg4#
      • 1...Kxb4
        • 2.bxc7
          • threat
            • 3.c8Q
              • threat
                • 4.Qg4#
              • 3...Ka4
                • 4.Qg4#
              • 3...Kc4
                • 4.Qg4#
          • 2...Ka4
            • 3.c8Q
              • 3...Kb4
                • 4.Qg4#
            • 3.Kc3
              • 3...Ka3
                • 4.Ra5#
          • 2...Kc4
            • 3.c8Q
              • threat
                • 4.Qg4#
              • 3...Kb4
                • 4.Qg4#
              • 3...Kd4
                • 4.Qg4#
        • 2.b7
          • 2...Ka4
            • 3.Kc3
              • 3...Ka3
                • 4.Ra5#
          • 2...Kc4
            • 3.b8Q
              • 3...Kd4
                • 4.Qb4#
            • 3.b8R
              • 3...Kd4
                • 4.Rb4#
      • 1...cxb6
        • 2.Ba5
          • 2...bxa5
            • 3.Kc3
              • 3...Ka3
                • 4.Rxa5#
          • 2...b5
            • 3.Bb6
              • 3...Kb4
                • 4.Rh4#
              • 3...b4
                • 4.Ra5#

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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).