Problem Display
PID: 19406 (8/5p1B/1B6/4k2K/8/1Q6/4P3/8 w - - 0 1)

Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)

Bohemia, 1909

8/5p1B/1B6/4k2K/8/1Q6/4P3/8

#3

5 + 2


3296 Shakhmatny zadachi miniaturi 1987
145 StrateGems 2008

SOLUTION


  • SOUND
  • Sets
    • 1...Kf4
      • 2.Bc7#
      • 2.Qe3#
  • Tries
    • 1.Bc7+?
      • 1...Kd4
        • 2.Bd6
          • threat
            • 3.Qd3#
            • 3.e3#
      • 1...Kf6!
  • Keys
    • 1.Bc5!
      • threat
        • 2.Qf3
          • threat
            • 3.Qf5#
          • 2...Ke6
            • 3.Qf5#
          • 2...f5
            • 3.Qxf5#
      • 1...Kf6
        • 2.Qg3
          • 2...Ke6
            • 3.Qd6#
      • 1...f5
        • 2.Bg8
          • 2...Ke4
            • 3.Qe3#
          • 2...Kf4
            • 3.Qe3#
          • 2...Kf6
            • 3.Qb2#
            • 3.Qc3#
          • 2...f4
            • 3.Qe6#
      • 1...f6
        • 2.Qf7
          • 2...Kf4
            • 3.Qc7#
          • 2...f5
            • 3.Qxf5#

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).