Problem Display
PID: 34405 (8/1p2K1p1/pBb3P1/P7/2k1PP2/Pp6/1P3N1N/8 w - - 0 1)

Kubbel, Leonid Ivanovich

Deutsches Wochenschach, 1922

8/1p2K1p1/pBb3P1/P7/2k1PP2/Pp6/1P3N1N/8

#4

10 + 6


3713 Snap 2019
  • SOUND
  • Keys
    • 1.Shg4!
      • threat
        • 2.Se5+
          • 2...Kb5
            • 3.Sd1
              • threat
                • 4.Sc3#
              • 3...Ka4
                • 4.Sc3#
      • 1...Kb5
        • 2.Sd1
          • threat
            • 3.Sc3+
              • 3...Kc4
                • 4.Se5#
            • 3.Se5
              • threat
                • 4.Sc3#
              • 3...Ka4
                • 4.Sc3#
          • 2...Kc4
            • 3.Se5+
              • 3...Kb5
                • 4.Sc3#
        • 2.Se5
          • threat
            • 3.Sd1
              • threat
                • 4.Sc3#
              • 3...Ka4
                • 4.Sc3#
          • 2...Ka4
            • 3.Sd1
              • threat
                • 4.Sc3#
              • 3...Kb5
                • 4.Sc3#
      • 1...Bxe4
        • 2.Se5+
          • 2...Kb5
            • 3.Sxe4
              • 3...Ka4
                • 4.Sc3#
            • 3.Sd1
              • threat
                • 4.Sc3#
              • 3...Ka4
                • 4.Sc3#
          • 2...Kd5
            • 3.Sd1
              • threat
                • 4.Sc3#
                • 4.Se3#
      • 1...Ba4
        • 2.Se3+
          • 2...Kb5
            • 3.Sf5
              • 3...Kc4
                • 4.Sd6#
              • 3...Kc6
                • 4.Sd4#

Anticipated by 194619(1918)



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).