Problem Display
PID: 197555 (6B1/4p3/3p3P/3p4/4k3/Q5P1/5K2/8 w - - 0 1)

Lindgren, Frithiof

Deutsches Wochenschach, 1920

6B1/4p3/3p3P/3p4/4k3/Q5P1/5K2/8

#3

5 + 4


6490 yacpdb 2019

SOLUTION


  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qb4+
        • 2...Kd3
          • 3.Bh7#
        • 2...Ke5
          • 3.Qf4#
    • 1...d4
      • 2.Qf3+
        • 2...Ke5
          • 3.Qf4#
    • 1...e5
      • 2.Bh7+
        • 2...Kd4
          • 3.Qb4#
  • Tries
    • 1.Qc3?
      • threat
        • 2.Bh7#
      • 1...d4
        • 2.Qf3+
          • 2...Ke5
            • 3.Qf4#
      • 1...Kf5!
    • 1.Qf3+?
      • 1...Ke5
        • 2.Qf4#
      • 1...Kd4!
  • Keys
    • 1.Bf7!
      • threat
        • 2.Qe3+
          • 2...Kf5
            • 3.Qf4#
      • 1...Kd4
        • 2.Qb4+
          • 2...Kd3
            • 3.Bg6#
          • 2...Ke5
            • 3.Qf4#
      • 1...Ke5
        • 2.Qe3+
          • 2...Kf5
            • 3.Qf4#
          • 2...Kf6
            • 3.Qf4#
      • 1...Kf5
        • 2.Qf3+
          • 2...Ke5
            • 3.Qf4#
          • 2...Kg5
            • 3.Qf4#
      • 1...d4
        • 2.Qf3+
          • 2...Ke5
            • 3.Qf4#
      • 1...e5
        • 2.Bg6+
          • 2...Kd4
            • 3.Qb4#

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).