Problem Display
PID: 90858 (K2bB2r/N1k1pr1n/4pp2/P1P3R1/1p1P4/1p6/3R4/8 w - - 0 1)

Klett, Carl

Die Schwalbe, 1949

K2bB2r/N1k1pr1n/4pp2/P1P3R1/1p1P4/1p6/3R4/8

#4

8 + 10


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Keys
    • 1.d5!
      • threat
        • 2.d6+
          • 2...exd6
            • 3.cxd6#
      • 1...Rxe8
        • 2.dxe6
          • threat
            • 3.Rd7#
          • 2...Sf8
            • 3.exf7
              • threat
                • 4.fxe8S#
      • 1...exd5
        • 2.Rgxd5
          • threat
            • 3.Rd7#
          • 2...Sf8
            • 3.Sb5+
              • 3...Kc8
                • 4.Rxd8#
            • 3.Rd7+
              • 3...Sxd7
                • 4.Rxd7#
            • 3.Rxd8
              • threat
                • 4.Sb5#
                • 4.Rc8#
            • 3.Bd7
              • threat
                • 4.Sb5#
              • 3...Sxd7
                • 4.Rxd7#
            • 3.Rd6
              • threat
                • 4.Rc6#
              • 3...exd6
                • 4.cxd6#
          • 2...e5
            • 3.Sb5+
              • 3...Kc8
                • 4.Rxd8#
            • 3.Rd7+
              • 3...Rxd7
                • 4.Rxd7#
            • 3.Rd6
              • threat
                • 4.Rc6#
          • 2...e6
            • 3.Sb5+
              • 3...Kc8
                • 4.Rxd8#
            • 3.Rd7+
              • 3...Rxd7
                • 4.Rxd7#
            • 3.Rd6
              • threat
                • 4.Rc6#

FEATURES


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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).