Problem Display
PID: 191536 (8/3p4/8/8/8/8/3K1NR1/1k6 w - - 0 1)

Dehler, Otto Georg Edgar

Bohemia, 1917

8/3p4/8/8/8/8/3K1NR1/1k6

#4

3 + 2


6490 yacpdb 2019

SOLUTION


  • SOUND
  • Keys
    • 1.Kc3!
      • threat
        • 2.Sd3
          • threat
            • 3.Kb3
              • threat
                • 4.Rg1#
              • 3...Ka1
                • 4.Rg1#
            • 3.Sb4
              • threat
                • 4.Rg1#
              • 3...Ka1
                • 4.Rg1#
              • 3...Kc1
                • 4.Rg1#
          • 2...Ka1
            • 3.Kb3
              • threat
                • 4.Rg1#
              • 3...Kb1
                • 4.Rg1#
            • 3.Sb4
              • threat
                • 4.Rg1#
              • 3...Kb1
                • 4.Rg1#
        • 2.Se4
          • threat
            • 3.Kb3
              • threat
                • 4.Rg1#
              • 3...Ka1
                • 4.Rg1#
              • 3...Kc1
                • 4.Rg1#
          • 2...Ka1
            • 3.Kb3
              • threat
                • 4.Rg1#
              • 3...Kb1
                • 4.Rg1#
      • 1...Ka2
        • 2.Se4+
          • 2...Ka1
            • 3.Kb3
              • threat
                • 4.Rg1#
              • 3...Kb1
                • 4.Rg1#
          • 2...Kb1
            • 3.Kb3
              • threat
                • 4.Rg1#
              • 3...Ka1
                • 4.Rg1#
              • 3...Kc1
                • 4.Rg1#
          • 2...Ka3
            • 3.Sd6
              • 3...Ka4
                • 4.Ra2#
      • 1...d5
        • 2.Sd3
          • threat
            • 3.Kb3
              • threat
                • 4.Rg1#
              • 3...Ka1
                • 4.Rg1#
          • 2...d4+
            • 3.Kb3
              • 3...Ka1
                • 4.Rg1#
          • 2...Ka1
            • 3.Kb3
              • threat
                • 4.Rg1#
              • 3...Kb1
                • 4.Rg1#

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).