Problem Display
PID: 220829 (4n3/8/8/4Q3/K1k5/2N5/2n5/6N1 w - - 0 1)

Massmann, Wilhelm Karl Heinrich

Deutsche Schachzeitung, 1969

4n3/8/8/4Q3/K1k5/2N5/2n5/6N1

#4

4 + 3


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qb5+
          • 2...Kxc3
            • 3.Qb3#
        • 2.Qd5+
          • 2...Kxc3
            • 3.Qb3#
        • 2.Sd1
          • threat
            • 3.Sb2#
            • 3.Qb5#
          • 2...Kd3
            • 3.Sb2#
          • 2...Sd4
            • 3.Qxd4#
      • 1...Kd3
        • 2.Kb3
          • threat
            • 3.Qe2#
            • 3.Qe4#
          • 2...Sa1+
            • 3.Kb2
              • threat
                • 4.Qd4#
                • 4.Qe2#
                • 4.Qe4#
              • 3...Kc4
                • 4.Qd4#
                • 4.Qb5#
      • 1...Sc7
        • 2.Se4
          • threat
            • 3.Qd6
              • threat
                • 4.Sfd2#
                • 4.Se5#
              • 3...Sd5
                • 4.Qa6#
          • 2...Kd3
            • 3.Sf2+
              • 3...Kc4
                • 4.Sd2#
            • 3.Sc5+
              • 3...Kc4
                • 4.Sd2#
          • 2...Sd5
            • 3.Qd4+
              • 3...Sxd4
                • 4.Se5#

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).