Problem Display
PID: 8380 (8/8/8/3K4/8/8/7Q/3k4 w - - 0 1)

Speckmann, Werner

Deutsche Schachzeitung, 1975

8/8/8/3K4/8/8/7Q/3k4

#3

2 + 1


SOLUTION


  • SOUND
  • Tries
    • 1.Kc4?
      • threat
        • 2.Kd3
          • threat
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qd2#
          • 2...Kc1
            • 3.Qc2#
          • 2...Ke1
            • 3.Qg1#
            • 3.Qe2#
      • 1...Kc1
        • 2.Kc3
          • threat
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qc2#
          • 2...Kb1
            • 3.Qb2#
          • 2...Kd1
            • 3.Qd2#
      • 1...Ke1!
    • 1.Ke4?
      • threat
        • 2.Kd3
          • threat
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qd2#
          • 2...Kc1
            • 3.Qc2#
          • 2...Ke1
            • 3.Qg1#
            • 3.Qe2#
      • 1...Ke1
        • 2.Ke3
          • threat
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qe2#
          • 2...Kd1
            • 3.Qd2#
          • 2...Kf1
            • 3.Qh1#
            • 3.Qf2#
      • 1...Kc1!
  • Keys
    • 1.Kd4!
      • threat
        • 2.Kd3
          • threat
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qd2#
          • 2...Kc1
            • 3.Qc2#
          • 2...Ke1
            • 3.Qg1#
            • 3.Qe2#
      • 1...Kc1
        • 2.Kc3
          • threat
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qc2#
          • 2...Kb1
            • 3.Qb2#
          • 2...Kd1
            • 3.Qd2#
      • 1...Ke1
        • 2.Ke3
          • threat
            • 3.Qg1#
            • 3.Qh1#
            • 3.Qe2#
          • 2...Kd1
            • 3.Qd2#
          • 2...Kf1
            • 3.Qh1#
            • 3.Qf2#

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).