Problem Display
PID: 209917 (1kB5/1Np3N1/K1P5/8/8/8/8/8 w - - 0 1)

Weller, Edwin J

New York Clipper, 1857

1kB5/1Np3N1/K1P5/8/8/8/8/8

#4

5 + 2


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Sd6!
      • threat
        • 2.Bb7
          • 2...cxd6
            • 3.Kb6
              • 3...d5
                • 4.c7#
            • 3.Se6
              • 3...d5
                • 4.c7#
            • 3.Se8
              • 3...d5
                • 4.c7#
      • 1...Ka8
        • 2.Bb7+
          • 2...Kb8
            • 3.Se6
              • 3...cxd6
                • 4.c7#
            • 3.Sge8
              • 3...cxd6
                • 4.c7#
        • 2.Se6
          • 2...Kb8
            • 3.Bb7
              • 3...cxd6
                • 4.c7#
          • 2...cxd6
            • 3.Bb7+
              • 3...Kb8
                • 4.c7#
            • 3.c7
              • 3...d5
                • 4.Bb7#
        • 2.Sge8
          • 2...Kb8
            • 3.Bb7
              • 3...cxd6
                • 4.c7#
          • 2...cxd6
            • 3.Bb7+
              • 3...Kb8
                • 4.c7#
            • 3.c7
              • 3...d5
                • 4.Bb7#
      • 1...cxd6
        • 2.Bb7
          • threat
            • 3.Kb6
              • 3...d5
                • 4.c7#
            • 3.Se6
              • 3...d5
                • 4.c7#
            • 3.Se8
              • 3...d5
                • 4.c7#
          • 2...Kc7
            • 3.Se6+
              • 3...Kb8
                • 4.c7#
          • 2...d5
            • 3.Kb6
              • 3...d4
                • 4.c7#
            • 3.Se6
              • 3...d4
                • 4.c7#
            • 3.Se8
              • 3...d4
                • 4.c7#

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).