Problem Display
PID: 214353 (2BK4/8/3k4/R7/3p2p1/1N6/3p4/8 w - - 0 1)

Anonymous

Detroit Free Press, 1878

2BK4/8/3k4/R7/3p2p1/1N6/3p4/8

#4

4 + 4


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Rb5!
      • threat
        • 2.Sxd2
          • threat
            • 3.Sc4+
              • 3...Kc6
                • 4.Bd7#
            • 3.Se4+
              • 3...Kc6
                • 4.Bd7#
            • 3.Bd7
              • threat
                • 4.Sc4#
                • 4.Se4#
          • 2...Kc6
            • 3.Bd7+
              • 3...Kd6
                • 4.Sc4#
                • 4.Se4#
        • 2.Sa5
          • threat
            • 3.Sc4+
              • 3...Kc6
                • 4.Bd7#
            • 3.Sb7+
              • 3...Kc6
                • 4.Bd7#
            • 3.Bd7
              • threat
                • 4.Sc4#
                • 4.Sb7#
        • 2.Bd7
          • threat
            • 3.Sxd2
              • threat
                • 4.Sc4#
                • 4.Se4#
            • 3.Sxd4
              • threat
                • 4.Sf5#
            • 3.Sa5
              • threat
                • 4.Sc4#
                • 4.Sb7#
      • 1...Kc6
        • 2.Sxd4+
          • 2...Kd6
            • 3.Sf5+
              • 3...Kc6
                • 4.Bd7#
            • 3.Be6
              • threat
                • 4.Rd5#
            • 3.Bb7
              • threat
                • 4.Rd5#
            • 3.Bd7
              • threat
                • 4.Sf5#
        • 2.Bd7+
          • 2...Kd6
            • 3.Sxd2
              • threat
                • 4.Sc4#
                • 4.Se4#
            • 3.Sxd4
              • threat
                • 4.Sf5#
            • 3.Sa5
              • threat
                • 4.Sc4#
                • 4.Sb7#

FEATURES


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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).