Problem Display
PID: 211053 (3K4/8/5k2/7P/8/4N3/6Q1/8 w - - 0 1)

Andersson, Anders Konrad

Schackvarlden, 1927

3K4/8/5k2/7P/8/4N3/6Q1/8

#3

4 + 1


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Tries
    • 1.Kd7?
      • 1...Kf7
        • 2.h6
          • threat
            • 3.Qg7#
          • 2...Kf6
            • 3.Qg7#
          • 2...Kf8
            • 3.Qg7#
      • 1...Ke5!
    • 1.Qb7?
      • threat
        • 2.Qe7#
      • 1...Ke5
        • 2.Qb4
          • 2...Ke6
            • 3.Qe7#
          • 2...Kf6
            • 3.Qe7#
      • 1...Kg5!
    • 1.Qg3?
      • 1...Ke6
        • 2.Qc7
          • 2...Kf6
            • 3.Qe7#
      • 1...Kf7!
    • 1.Qg5+?
      • 1...Kf7
        • 2.h6
          • 2...Ke6
            • 3.Qe7#
          • 2...Kf8
            • 3.Qg7#
      • 1...Kxg5!
    • 1.Qg7+?
      • 1...Ke6
        • 2.Qe7#
      • 1...Kxg7!
    • 1.h6?
      • threat
        • 2.Qg7+
          • 2...Ke6
            • 3.Qe7#
      • 1...Ke6
        • 2.Qd5+
          • 2...Kf6
            • 3.Qf5#
      • 1...Kf7
        • 2.Kd7
          • threat
            • 3.Qg7#
          • 2...Kf6
            • 3.Qg7#
          • 2...Kf8
            • 3.Qg7#
        • 2.Qg4
          • 2...Kf6
            • 3.Qf5#
          • 2...Kf8
            • 3.Qg7#
        • 2.Qg5
          • 2...Ke6
            • 3.Qe7#
          • 2...Kf8
            • 3.Qg7#
        • 2.Qg7+
          • 2...Ke6
            • 3.Qe7#
      • 1...Ke5!
  • Keys
    • 1.Qg4!
      • 1...Ke5
        • 2.Qb4
          • 2...Ke6
            • 3.Qe7#
          • 2...Kf6
            • 3.Qe7#
      • 1...Kf7
        • 2.h6
          • 2...Kf6
            • 3.Qf5#
          • 2...Kf8
            • 3.Qg7#

FEATURES


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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).